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@@ -930,3 +930,5 @@ parrot/lib/python3.10/site-packages/matplotlib/backends/_backend_agg.cpython-310
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+vllm/lib/python3.10/site-packages/pandas/core/__pycache__/series.cpython-310.pyc filter=lfs diff=lfs merge=lfs -text

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vllm/lib/python3.10/site-packages/pandas/core/__pycache__/series.cpython-310.pyc

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vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/conftest.py

@@ -0,0 +1,48 @@
+import numpy as np
+import pytest
+
+import pandas as pd
+from pandas.core.arrays.floating import (
+    Float32Dtype,
+    Float64Dtype,
+)
+
+
+@pytest.fixture(params=[Float32Dtype, Float64Dtype])
+def dtype(request):
+    """Parametrized fixture returning a float 'dtype'"""
+    return request.param()
+
+
+@pytest.fixture
+def data(dtype):
+    """Fixture returning 'data' array according to parametrized float 'dtype'"""
+    return pd.array(
+        list(np.arange(0.1, 0.9, 0.1))
+        + [pd.NA]
+        + list(np.arange(1, 9.8, 0.1))
+        + [pd.NA]
+        + [9.9, 10.0],
+        dtype=dtype,
+    )
+
+
+@pytest.fixture
+def data_missing(dtype):
+    """
+    Fixture returning array with missing data according to parametrized float
+    'dtype'.
+    """
+    return pd.array([np.nan, 0.1], dtype=dtype)
+
+
+@pytest.fixture(params=["data", "data_missing"])
+def all_data(request, data, data_missing):
+    """Parametrized fixture returning 'data' or 'data_missing' float arrays.
+
+    Used to test dtype conversion with and without missing values.
+    """
+    if request.param == "data":
+        return data
+    elif request.param == "data_missing":
+        return data_missing

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_arithmetic.py

@@ -0,0 +1,244 @@
+import operator
+
+import numpy as np
+import pytest
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.core.arrays import FloatingArray
+
+# Basic test for the arithmetic array ops
+# -----------------------------------------------------------------------------
+
+
+@pytest.mark.parametrize(
+    "opname, exp",
+    [
+        ("add", [1.1, 2.2, None, None, 5.5]),
+        ("mul", [0.1, 0.4, None, None, 2.5]),
+        ("sub", [0.9, 1.8, None, None, 4.5]),
+        ("truediv", [10.0, 10.0, None, None, 10.0]),
+        ("floordiv", [9.0, 9.0, None, None, 10.0]),
+        ("mod", [0.1, 0.2, None, None, 0.0]),
+    ],
+    ids=["add", "mul", "sub", "div", "floordiv", "mod"],
+)
+def test_array_op(dtype, opname, exp):
+    a = pd.array([1.0, 2.0, None, 4.0, 5.0], dtype=dtype)
+    b = pd.array([0.1, 0.2, 0.3, None, 0.5], dtype=dtype)
+
+    op = getattr(operator, opname)
+
+    result = op(a, b)
+    expected = pd.array(exp, dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("zero, negative", [(0, False), (0.0, False), (-0.0, True)])
+def test_divide_by_zero(dtype, zero, negative):
+    # TODO pending NA/NaN discussion
+    # https://github.com/pandas-dev/pandas/issues/32265/
+    a = pd.array([0, 1, -1, None], dtype=dtype)
+    result = a / zero
+    expected = FloatingArray(
+        np.array([np.nan, np.inf, -np.inf, np.nan], dtype=dtype.numpy_dtype),
+        np.array([False, False, False, True]),
+    )
+    if negative:
+        expected *= -1
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_pow_scalar(dtype):
+    a = pd.array([-1, 0, 1, None, 2], dtype=dtype)
+    result = a**0
+    expected = pd.array([1, 1, 1, 1, 1], dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+    result = a**1
+    expected = pd.array([-1, 0, 1, None, 2], dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+    result = a**pd.NA
+    expected = pd.array([None, None, 1, None, None], dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+    result = a**np.nan
+    # TODO np.nan should be converted to pd.NA / missing before operation?
+    expected = FloatingArray(
+        np.array([np.nan, np.nan, 1, np.nan, np.nan], dtype=dtype.numpy_dtype),
+        mask=a._mask,
+    )
+    tm.assert_extension_array_equal(result, expected)
+
+    # reversed
+    a = a[1:]  # Can't raise integers to negative powers.
+
+    result = 0**a
+    expected = pd.array([1, 0, None, 0], dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+    result = 1**a
+    expected = pd.array([1, 1, 1, 1], dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+    result = pd.NA**a
+    expected = pd.array([1, None, None, None], dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+    result = np.nan**a
+    expected = FloatingArray(
+        np.array([1, np.nan, np.nan, np.nan], dtype=dtype.numpy_dtype), mask=a._mask
+    )
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_pow_array(dtype):
+    a = pd.array([0, 0, 0, 1, 1, 1, None, None, None], dtype=dtype)
+    b = pd.array([0, 1, None, 0, 1, None, 0, 1, None], dtype=dtype)
+    result = a**b
+    expected = pd.array([1, 0, None, 1, 1, 1, 1, None, None], dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_rpow_one_to_na():
+    # https://github.com/pandas-dev/pandas/issues/22022
+    # https://github.com/pandas-dev/pandas/issues/29997
+    arr = pd.array([np.nan, np.nan], dtype="Float64")
+    result = np.array([1.0, 2.0]) ** arr
+    expected = pd.array([1.0, np.nan], dtype="Float64")
+    tm.assert_extension_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("other", [0, 0.5])
+def test_arith_zero_dim_ndarray(other):
+    arr = pd.array([1, None, 2], dtype="Float64")
+    result = arr + np.array(other)
+    expected = arr + other
+    tm.assert_equal(result, expected)
+
+
+# Test generic characteristics / errors
+# -----------------------------------------------------------------------------
+
+
+def test_error_invalid_values(data, all_arithmetic_operators, using_infer_string):
+    op = all_arithmetic_operators
+    s = pd.Series(data)
+    ops = getattr(s, op)
+
+    if using_infer_string:
+        import pyarrow as pa
+
+        errs = (TypeError, pa.lib.ArrowNotImplementedError, NotImplementedError)
+    else:
+        errs = TypeError
+
+    # invalid scalars
+    msg = "|".join(
+        [
+            r"can only perform ops with numeric values",
+            r"FloatingArray cannot perform the operation mod",
+            "unsupported operand type",
+            "not all arguments converted during string formatting",
+            "can't multiply sequence by non-int of type 'float'",
+            "ufunc 'subtract' cannot use operands with types dtype",
+            r"can only concatenate str \(not \"float\"\) to str",
+            "ufunc '.*' not supported for the input types, and the inputs could not",
+            "ufunc '.*' did not contain a loop with signature matching types",
+            "Concatenation operation is not implemented for NumPy arrays",
+            "has no kernel",
+            "not implemented",
+        ]
+    )
+    with pytest.raises(errs, match=msg):
+        ops("foo")
+    with pytest.raises(errs, match=msg):
+        ops(pd.Timestamp("20180101"))
+
+    # invalid array-likes
+    with pytest.raises(errs, match=msg):
+        ops(pd.Series("foo", index=s.index))
+
+    msg = "|".join(
+        [
+            "can only perform ops with numeric values",
+            "cannot perform .* with this index type: DatetimeArray",
+            "Addition/subtraction of integers and integer-arrays "
+            "with DatetimeArray is no longer supported. *",
+            "unsupported operand type",
+            "not all arguments converted during string formatting",
+            "can't multiply sequence by non-int of type 'float'",
+            "ufunc 'subtract' cannot use operands with types dtype",
+            (
+                "ufunc 'add' cannot use operands with types "
+                rf"dtype\('{tm.ENDIAN}M8\[ns\]'\)"
+            ),
+            r"ufunc 'add' cannot use operands with types dtype\('float\d{2}'\)",
+            "cannot subtract DatetimeArray from ndarray",
+            "has no kernel",
+            "not implemented",
+        ]
+    )
+    with pytest.raises(errs, match=msg):
+        ops(pd.Series(pd.date_range("20180101", periods=len(s))))
+
+
+# Various
+# -----------------------------------------------------------------------------
+
+
+def test_cross_type_arithmetic():
+    df = pd.DataFrame(
+        {
+            "A": pd.array([1, 2, np.nan], dtype="Float64"),
+            "B": pd.array([1, np.nan, 3], dtype="Float32"),
+            "C": np.array([1, 2, 3], dtype="float64"),
+        }
+    )
+
+    result = df.A + df.C
+    expected = pd.Series([2, 4, np.nan], dtype="Float64")
+    tm.assert_series_equal(result, expected)
+
+    result = (df.A + df.C) * 3 == 12
+    expected = pd.Series([False, True, None], dtype="boolean")
+    tm.assert_series_equal(result, expected)
+
+    result = df.A + df.B
+    expected = pd.Series([2, np.nan, np.nan], dtype="Float64")
+    tm.assert_series_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+    "source, neg_target, abs_target",
+    [
+        ([1.1, 2.2, 3.3], [-1.1, -2.2, -3.3], [1.1, 2.2, 3.3]),
+        ([1.1, 2.2, None], [-1.1, -2.2, None], [1.1, 2.2, None]),
+        ([-1.1, 0.0, 1.1], [1.1, 0.0, -1.1], [1.1, 0.0, 1.1]),
+    ],
+)
+def test_unary_float_operators(float_ea_dtype, source, neg_target, abs_target):
+    # GH38794
+    dtype = float_ea_dtype
+    arr = pd.array(source, dtype=dtype)
+    neg_result, pos_result, abs_result = -arr, +arr, abs(arr)
+    neg_target = pd.array(neg_target, dtype=dtype)
+    abs_target = pd.array(abs_target, dtype=dtype)
+
+    tm.assert_extension_array_equal(neg_result, neg_target)
+    tm.assert_extension_array_equal(pos_result, arr)
+    assert not tm.shares_memory(pos_result, arr)
+    tm.assert_extension_array_equal(abs_result, abs_target)
+
+
+def test_bitwise(dtype):
+    left = pd.array([1, None, 3, 4], dtype=dtype)
+    right = pd.array([None, 3, 5, 4], dtype=dtype)
+
+    with pytest.raises(TypeError, match="unsupported operand type"):
+        left | right
+    with pytest.raises(TypeError, match="unsupported operand type"):
+        left & right
+    with pytest.raises(TypeError, match="unsupported operand type"):
+        left ^ right

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_astype.py

@@ -0,0 +1,128 @@
+import numpy as np
+import pytest
+
+import pandas as pd
+import pandas._testing as tm
+
+
+def test_astype():
+    # with missing values
+    arr = pd.array([0.1, 0.2, None], dtype="Float64")
+
+    with pytest.raises(ValueError, match="cannot convert NA to integer"):
+        arr.astype("int64")
+
+    with pytest.raises(ValueError, match="cannot convert float NaN to bool"):
+        arr.astype("bool")
+
+    result = arr.astype("float64")
+    expected = np.array([0.1, 0.2, np.nan], dtype="float64")
+    tm.assert_numpy_array_equal(result, expected)
+
+    # no missing values
+    arr = pd.array([0.0, 1.0, 0.5], dtype="Float64")
+    result = arr.astype("int64")
+    expected = np.array([0, 1, 0], dtype="int64")
+    tm.assert_numpy_array_equal(result, expected)
+
+    result = arr.astype("bool")
+    expected = np.array([False, True, True], dtype="bool")
+    tm.assert_numpy_array_equal(result, expected)
+
+
+def test_astype_to_floating_array():
+    # astype to FloatingArray
+    arr = pd.array([0.0, 1.0, None], dtype="Float64")
+
+    result = arr.astype("Float64")
+    tm.assert_extension_array_equal(result, arr)
+    result = arr.astype(pd.Float64Dtype())
+    tm.assert_extension_array_equal(result, arr)
+    result = arr.astype("Float32")
+    expected = pd.array([0.0, 1.0, None], dtype="Float32")
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_astype_to_boolean_array():
+    # astype to BooleanArray
+    arr = pd.array([0.0, 1.0, None], dtype="Float64")
+
+    result = arr.astype("boolean")
+    expected = pd.array([False, True, None], dtype="boolean")
+    tm.assert_extension_array_equal(result, expected)
+    result = arr.astype(pd.BooleanDtype())
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_astype_to_integer_array():
+    # astype to IntegerArray
+    arr = pd.array([0.0, 1.5, None], dtype="Float64")
+
+    result = arr.astype("Int64")
+    expected = pd.array([0, 1, None], dtype="Int64")
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_astype_str():
+    a = pd.array([0.1, 0.2, None], dtype="Float64")
+    expected = np.array(["0.1", "0.2", "<NA>"], dtype="U32")
+
+    tm.assert_numpy_array_equal(a.astype(str), expected)
+    tm.assert_numpy_array_equal(a.astype("str"), expected)
+
+
+def test_astype_copy():
+    arr = pd.array([0.1, 0.2, None], dtype="Float64")
+    orig = pd.array([0.1, 0.2, None], dtype="Float64")
+
+    # copy=True -> ensure both data and mask are actual copies
+    result = arr.astype("Float64", copy=True)
+    assert result is not arr
+    assert not tm.shares_memory(result, arr)
+    result[0] = 10
+    tm.assert_extension_array_equal(arr, orig)
+    result[0] = pd.NA
+    tm.assert_extension_array_equal(arr, orig)
+
+    # copy=False
+    result = arr.astype("Float64", copy=False)
+    assert result is arr
+    assert np.shares_memory(result._data, arr._data)
+    assert np.shares_memory(result._mask, arr._mask)
+    result[0] = 10
+    assert arr[0] == 10
+    result[0] = pd.NA
+    assert arr[0] is pd.NA
+
+    # astype to different dtype -> always needs a copy -> even with copy=False
+    # we need to ensure that also the mask is actually copied
+    arr = pd.array([0.1, 0.2, None], dtype="Float64")
+    orig = pd.array([0.1, 0.2, None], dtype="Float64")
+
+    result = arr.astype("Float32", copy=False)
+    assert not tm.shares_memory(result, arr)
+    result[0] = 10
+    tm.assert_extension_array_equal(arr, orig)
+    result[0] = pd.NA
+    tm.assert_extension_array_equal(arr, orig)
+
+
+def test_astype_object(dtype):
+    arr = pd.array([1.0, pd.NA], dtype=dtype)
+
+    result = arr.astype(object)
+    expected = np.array([1.0, pd.NA], dtype=object)
+    tm.assert_numpy_array_equal(result, expected)
+    # check exact element types
+    assert isinstance(result[0], float)
+    assert result[1] is pd.NA
+
+
+def test_Float64_conversion():
+    # GH#40729
+    testseries = pd.Series(["1", "2", "3", "4"], dtype="object")
+    result = testseries.astype(pd.Float64Dtype())
+
+    expected = pd.Series([1.0, 2.0, 3.0, 4.0], dtype=pd.Float64Dtype())
+
+    tm.assert_series_equal(result, expected)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_comparison.py

@@ -0,0 +1,65 @@
+import numpy as np
+import pytest
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.core.arrays import FloatingArray
+from pandas.tests.arrays.masked_shared import (
+    ComparisonOps,
+    NumericOps,
+)
+
+
+class TestComparisonOps(NumericOps, ComparisonOps):
+    @pytest.mark.parametrize("other", [True, False, pd.NA, -1.0, 0.0, 1])
+    def test_scalar(self, other, comparison_op, dtype):
+        ComparisonOps.test_scalar(self, other, comparison_op, dtype)
+
+    def test_compare_with_integerarray(self, comparison_op):
+        op = comparison_op
+        a = pd.array([0, 1, None] * 3, dtype="Int64")
+        b = pd.array([0] * 3 + [1] * 3 + [None] * 3, dtype="Float64")
+        other = b.astype("Int64")
+        expected = op(a, other)
+        result = op(a, b)
+        tm.assert_extension_array_equal(result, expected)
+        expected = op(other, a)
+        result = op(b, a)
+        tm.assert_extension_array_equal(result, expected)
+
+
+def test_equals():
+    # GH-30652
+    # equals is generally tested in /tests/extension/base/methods, but this
+    # specifically tests that two arrays of the same class but different dtype
+    # do not evaluate equal
+    a1 = pd.array([1, 2, None], dtype="Float64")
+    a2 = pd.array([1, 2, None], dtype="Float32")
+    assert a1.equals(a2) is False
+
+
+def test_equals_nan_vs_na():
+    # GH#44382
+
+    mask = np.zeros(3, dtype=bool)
+    data = np.array([1.0, np.nan, 3.0], dtype=np.float64)
+
+    left = FloatingArray(data, mask)
+    assert left.equals(left)
+    tm.assert_extension_array_equal(left, left)
+
+    assert left.equals(left.copy())
+    assert left.equals(FloatingArray(data.copy(), mask.copy()))
+
+    mask2 = np.array([False, True, False], dtype=bool)
+    data2 = np.array([1.0, 2.0, 3.0], dtype=np.float64)
+    right = FloatingArray(data2, mask2)
+    assert right.equals(right)
+    tm.assert_extension_array_equal(right, right)
+
+    assert not left.equals(right)
+
+    # with mask[1] = True, the only difference is data[1], which should
+    #  not matter for equals
+    mask[1] = True
+    assert left.equals(right)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_concat.py

@@ -0,0 +1,20 @@
+import pytest
+
+import pandas as pd
+import pandas._testing as tm
+
+
+@pytest.mark.parametrize(
+    "to_concat_dtypes, result_dtype",
+    [
+        (["Float64", "Float64"], "Float64"),
+        (["Float32", "Float64"], "Float64"),
+        (["Float32", "Float32"], "Float32"),
+    ],
+)
+def test_concat_series(to_concat_dtypes, result_dtype):
+    result = pd.concat([pd.Series([1, 2, pd.NA], dtype=t) for t in to_concat_dtypes])
+    expected = pd.concat([pd.Series([1, 2, pd.NA], dtype=object)] * 2).astype(
+        result_dtype
+    )
+    tm.assert_series_equal(result, expected)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_construction.py

@@ -0,0 +1,204 @@
+import numpy as np
+import pytest
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.core.arrays import FloatingArray
+from pandas.core.arrays.floating import (
+    Float32Dtype,
+    Float64Dtype,
+)
+
+
+def test_uses_pandas_na():
+    a = pd.array([1, None], dtype=Float64Dtype())
+    assert a[1] is pd.NA
+
+
+def test_floating_array_constructor():
+    values = np.array([1, 2, 3, 4], dtype="float64")
+    mask = np.array([False, False, False, True], dtype="bool")
+
+    result = FloatingArray(values, mask)
+    expected = pd.array([1, 2, 3, np.nan], dtype="Float64")
+    tm.assert_extension_array_equal(result, expected)
+    tm.assert_numpy_array_equal(result._data, values)
+    tm.assert_numpy_array_equal(result._mask, mask)
+
+    msg = r".* should be .* numpy array. Use the 'pd.array' function instead"
+    with pytest.raises(TypeError, match=msg):
+        FloatingArray(values.tolist(), mask)
+
+    with pytest.raises(TypeError, match=msg):
+        FloatingArray(values, mask.tolist())
+
+    with pytest.raises(TypeError, match=msg):
+        FloatingArray(values.astype(int), mask)
+
+    msg = r"__init__\(\) missing 1 required positional argument: 'mask'"
+    with pytest.raises(TypeError, match=msg):
+        FloatingArray(values)
+
+
+def test_floating_array_disallows_float16():
+    # GH#44715
+    arr = np.array([1, 2], dtype=np.float16)
+    mask = np.array([False, False])
+
+    msg = "FloatingArray does not support np.float16 dtype"
+    with pytest.raises(TypeError, match=msg):
+        FloatingArray(arr, mask)
+
+
+def test_floating_array_disallows_Float16_dtype(request):
+    # GH#44715
+    with pytest.raises(TypeError, match="data type 'Float16' not understood"):
+        pd.array([1.0, 2.0], dtype="Float16")
+
+
+def test_floating_array_constructor_copy():
+    values = np.array([1, 2, 3, 4], dtype="float64")
+    mask = np.array([False, False, False, True], dtype="bool")
+
+    result = FloatingArray(values, mask)
+    assert result._data is values
+    assert result._mask is mask
+
+    result = FloatingArray(values, mask, copy=True)
+    assert result._data is not values
+    assert result._mask is not mask
+
+
+def test_to_array():
+    result = pd.array([0.1, 0.2, 0.3, 0.4])
+    expected = pd.array([0.1, 0.2, 0.3, 0.4], dtype="Float64")
+    tm.assert_extension_array_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+    "a, b",
+    [
+        ([1, None], [1, pd.NA]),
+        ([None], [pd.NA]),
+        ([None, np.nan], [pd.NA, pd.NA]),
+        ([1, np.nan], [1, pd.NA]),
+        ([np.nan], [pd.NA]),
+    ],
+)
+def test_to_array_none_is_nan(a, b):
+    result = pd.array(a, dtype="Float64")
+    expected = pd.array(b, dtype="Float64")
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_to_array_mixed_integer_float():
+    result = pd.array([1, 2.0])
+    expected = pd.array([1.0, 2.0], dtype="Float64")
+    tm.assert_extension_array_equal(result, expected)
+
+    result = pd.array([1, None, 2.0])
+    expected = pd.array([1.0, None, 2.0], dtype="Float64")
+    tm.assert_extension_array_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+    "values",
+    [
+        ["foo", "bar"],
+        "foo",
+        1,
+        1.0,
+        pd.date_range("20130101", periods=2),
+        np.array(["foo"]),
+        [[1, 2], [3, 4]],
+        [np.nan, {"a": 1}],
+        # GH#44514 all-NA case used to get quietly swapped out before checking ndim
+        np.array([pd.NA] * 6, dtype=object).reshape(3, 2),
+    ],
+)
+def test_to_array_error(values):
+    # error in converting existing arrays to FloatingArray
+    msg = "|".join(
+        [
+            "cannot be converted to FloatingDtype",
+            "values must be a 1D list-like",
+            "Cannot pass scalar",
+            r"float\(\) argument must be a string or a (real )?number, not 'dict'",
+            "could not convert string to float: 'foo'",
+            r"could not convert string to float: np\.str_\('foo'\)",
+        ]
+    )
+    with pytest.raises((TypeError, ValueError), match=msg):
+        pd.array(values, dtype="Float64")
+
+
+@pytest.mark.parametrize("values", [["1", "2", None], ["1.5", "2", None]])
+def test_construct_from_float_strings(values):
+    # see also test_to_integer_array_str
+    expected = pd.array([float(values[0]), 2, None], dtype="Float64")
+
+    res = pd.array(values, dtype="Float64")
+    tm.assert_extension_array_equal(res, expected)
+
+    res = FloatingArray._from_sequence(values)
+    tm.assert_extension_array_equal(res, expected)
+
+
+def test_to_array_inferred_dtype():
+    # if values has dtype -> respect it
+    result = pd.array(np.array([1, 2], dtype="float32"))
+    assert result.dtype == Float32Dtype()
+
+    # if values have no dtype -> always float64
+    result = pd.array([1.0, 2.0])
+    assert result.dtype == Float64Dtype()
+
+
+def test_to_array_dtype_keyword():
+    result = pd.array([1, 2], dtype="Float32")
+    assert result.dtype == Float32Dtype()
+
+    # if values has dtype -> override it
+    result = pd.array(np.array([1, 2], dtype="float32"), dtype="Float64")
+    assert result.dtype == Float64Dtype()
+
+
+def test_to_array_integer():
+    result = pd.array([1, 2], dtype="Float64")
+    expected = pd.array([1.0, 2.0], dtype="Float64")
+    tm.assert_extension_array_equal(result, expected)
+
+    # for integer dtypes, the itemsize is not preserved
+    # TODO can we specify "floating" in general?
+    result = pd.array(np.array([1, 2], dtype="int32"), dtype="Float64")
+    assert result.dtype == Float64Dtype()
+
+
+@pytest.mark.parametrize(
+    "bool_values, values, target_dtype, expected_dtype",
+    [
+        ([False, True], [0, 1], Float64Dtype(), Float64Dtype()),
+        ([False, True], [0, 1], "Float64", Float64Dtype()),
+        ([False, True, np.nan], [0, 1, np.nan], Float64Dtype(), Float64Dtype()),
+    ],
+)
+def test_to_array_bool(bool_values, values, target_dtype, expected_dtype):
+    result = pd.array(bool_values, dtype=target_dtype)
+    assert result.dtype == expected_dtype
+    expected = pd.array(values, dtype=target_dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+
+def test_series_from_float(data):
+    # construct from our dtype & string dtype
+    dtype = data.dtype
+
+    # from float
+    expected = pd.Series(data)
+    result = pd.Series(data.to_numpy(na_value=np.nan, dtype="float"), dtype=str(dtype))
+    tm.assert_series_equal(result, expected)
+
+    # from list
+    expected = pd.Series(data)
+    result = pd.Series(np.array(data).tolist(), dtype=str(dtype))
+    tm.assert_series_equal(result, expected)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_contains.py

@@ -0,0 +1,12 @@
+import numpy as np
+
+import pandas as pd
+
+
+def test_contains_nan():
+    # GH#52840
+    arr = pd.array(range(5)) / 0
+
+    assert np.isnan(arr._data[0])
+    assert not arr.isna()[0]
+    assert np.nan in arr

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_repr.py

@@ -0,0 +1,47 @@
+import numpy as np
+import pytest
+
+import pandas as pd
+from pandas.core.arrays.floating import (
+    Float32Dtype,
+    Float64Dtype,
+)
+
+
+def test_dtypes(dtype):
+    # smoke tests on auto dtype construction
+
+    np.dtype(dtype.type).kind == "f"
+    assert dtype.name is not None
+
+
+@pytest.mark.parametrize(
+    "dtype, expected",
+    [(Float32Dtype(), "Float32Dtype()"), (Float64Dtype(), "Float64Dtype()")],
+)
+def test_repr_dtype(dtype, expected):
+    assert repr(dtype) == expected
+
+
+def test_repr_array():
+    result = repr(pd.array([1.0, None, 3.0]))
+    expected = "<FloatingArray>\n[1.0, <NA>, 3.0]\nLength: 3, dtype: Float64"
+    assert result == expected
+
+
+def test_repr_array_long():
+    data = pd.array([1.0, 2.0, None] * 1000)
+    expected = """<FloatingArray>
+[ 1.0,  2.0, <NA>,  1.0,  2.0, <NA>,  1.0,  2.0, <NA>,  1.0,
+ ...
+ <NA>,  1.0,  2.0, <NA>,  1.0,  2.0, <NA>,  1.0,  2.0, <NA>]
+Length: 3000, dtype: Float64"""
+    result = repr(data)
+    assert result == expected
+
+
+def test_frame_repr(data_missing):
+    df = pd.DataFrame({"A": data_missing})
+    result = repr(df)
+    expected = "      A\n0  <NA>\n1   0.1"
+    assert result == expected

vllm/lib/python3.10/site-packages/pandas/tests/arrays/floating/test_to_numpy.py

@@ -0,0 +1,132 @@
+import numpy as np
+import pytest
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.core.arrays import FloatingArray
+
+
+@pytest.mark.parametrize("box", [True, False], ids=["series", "array"])
+def test_to_numpy(box):
+    con = pd.Series if box else pd.array
+
+    # default (with or without missing values) -> object dtype
+    arr = con([0.1, 0.2, 0.3], dtype="Float64")
+    result = arr.to_numpy()
+    expected = np.array([0.1, 0.2, 0.3], dtype="float64")
+    tm.assert_numpy_array_equal(result, expected)
+
+    arr = con([0.1, 0.2, None], dtype="Float64")
+    result = arr.to_numpy()
+    expected = np.array([0.1, 0.2, np.nan], dtype="float64")
+    tm.assert_numpy_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("box", [True, False], ids=["series", "array"])
+def test_to_numpy_float(box):
+    con = pd.Series if box else pd.array
+
+    # no missing values -> can convert to float, otherwise raises
+    arr = con([0.1, 0.2, 0.3], dtype="Float64")
+    result = arr.to_numpy(dtype="float64")
+    expected = np.array([0.1, 0.2, 0.3], dtype="float64")
+    tm.assert_numpy_array_equal(result, expected)
+
+    arr = con([0.1, 0.2, None], dtype="Float64")
+    result = arr.to_numpy(dtype="float64")
+    expected = np.array([0.1, 0.2, np.nan], dtype="float64")
+    tm.assert_numpy_array_equal(result, expected)
+
+    result = arr.to_numpy(dtype="float64", na_value=np.nan)
+    expected = np.array([0.1, 0.2, np.nan], dtype="float64")
+    tm.assert_numpy_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("box", [True, False], ids=["series", "array"])
+def test_to_numpy_int(box):
+    con = pd.Series if box else pd.array
+
+    # no missing values -> can convert to int, otherwise raises
+    arr = con([1.0, 2.0, 3.0], dtype="Float64")
+    result = arr.to_numpy(dtype="int64")
+    expected = np.array([1, 2, 3], dtype="int64")
+    tm.assert_numpy_array_equal(result, expected)
+
+    arr = con([1.0, 2.0, None], dtype="Float64")
+    with pytest.raises(ValueError, match="cannot convert to 'int64'-dtype"):
+        result = arr.to_numpy(dtype="int64")
+
+    # automatic casting (floors the values)
+    arr = con([0.1, 0.9, 1.1], dtype="Float64")
+    result = arr.to_numpy(dtype="int64")
+    expected = np.array([0, 0, 1], dtype="int64")
+    tm.assert_numpy_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("box", [True, False], ids=["series", "array"])
+def test_to_numpy_na_value(box):
+    con = pd.Series if box else pd.array
+
+    arr = con([0.0, 1.0, None], dtype="Float64")
+    result = arr.to_numpy(dtype=object, na_value=None)
+    expected = np.array([0.0, 1.0, None], dtype="object")
+    tm.assert_numpy_array_equal(result, expected)
+
+    result = arr.to_numpy(dtype=bool, na_value=False)
+    expected = np.array([False, True, False], dtype="bool")
+    tm.assert_numpy_array_equal(result, expected)
+
+    result = arr.to_numpy(dtype="int64", na_value=-99)
+    expected = np.array([0, 1, -99], dtype="int64")
+    tm.assert_numpy_array_equal(result, expected)
+
+
+def test_to_numpy_na_value_with_nan():
+    # array with both NaN and NA -> only fill NA with `na_value`
+    arr = FloatingArray(np.array([0.0, np.nan, 0.0]), np.array([False, False, True]))
+    result = arr.to_numpy(dtype="float64", na_value=-1)
+    expected = np.array([0.0, np.nan, -1.0], dtype="float64")
+    tm.assert_numpy_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("dtype", ["float64", "float32", "int32", "int64", "bool"])
+@pytest.mark.parametrize("box", [True, False], ids=["series", "array"])
+def test_to_numpy_dtype(box, dtype):
+    con = pd.Series if box else pd.array
+    arr = con([0.0, 1.0], dtype="Float64")
+
+    result = arr.to_numpy(dtype=dtype)
+    expected = np.array([0, 1], dtype=dtype)
+    tm.assert_numpy_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("dtype", ["int32", "int64", "bool"])
+@pytest.mark.parametrize("box", [True, False], ids=["series", "array"])
+def test_to_numpy_na_raises(box, dtype):
+    con = pd.Series if box else pd.array
+    arr = con([0.0, 1.0, None], dtype="Float64")
+    with pytest.raises(ValueError, match=dtype):
+        arr.to_numpy(dtype=dtype)
+
+
+@pytest.mark.parametrize("box", [True, False], ids=["series", "array"])
+def test_to_numpy_string(box, dtype):
+    con = pd.Series if box else pd.array
+    arr = con([0.0, 1.0, None], dtype="Float64")
+
+    result = arr.to_numpy(dtype="str")
+    expected = np.array([0.0, 1.0, pd.NA], dtype=f"{tm.ENDIAN}U32")
+    tm.assert_numpy_array_equal(result, expected)
+
+
+def test_to_numpy_copy():
+    # to_numpy can be zero-copy if no missing values
+    arr = pd.array([0.1, 0.2, 0.3], dtype="Float64")
+    result = arr.to_numpy(dtype="float64")
+    result[0] = 10
+    tm.assert_extension_array_equal(arr, pd.array([10, 0.2, 0.3], dtype="Float64"))
+
+    arr = pd.array([0.1, 0.2, 0.3], dtype="Float64")
+    result = arr.to_numpy(dtype="float64", copy=True)
+    result[0] = 10
+    tm.assert_extension_array_equal(arr, pd.array([0.1, 0.2, 0.3], dtype="Float64"))

vllm/lib/python3.10/site-packages/pandas/tests/arrays/masked_shared.py

@@ -0,0 +1,154 @@
+"""
+Tests shared by MaskedArray subclasses.
+"""
+import numpy as np
+import pytest
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.tests.extension.base import BaseOpsUtil
+
+
+class ComparisonOps(BaseOpsUtil):
+    def _compare_other(self, data, op, other):
+        # array
+        result = pd.Series(op(data, other))
+        expected = pd.Series(op(data._data, other), dtype="boolean")
+
+        # fill the nan locations
+        expected[data._mask] = pd.NA
+
+        tm.assert_series_equal(result, expected)
+
+        # series
+        ser = pd.Series(data)
+        result = op(ser, other)
+
+        # Set nullable dtype here to avoid upcasting when setting to pd.NA below
+        expected = op(pd.Series(data._data), other).astype("boolean")
+
+        # fill the nan locations
+        expected[data._mask] = pd.NA
+
+        tm.assert_series_equal(result, expected)
+
+    # subclass will override to parametrize 'other'
+    def test_scalar(self, other, comparison_op, dtype):
+        op = comparison_op
+        left = pd.array([1, 0, None], dtype=dtype)
+
+        result = op(left, other)
+
+        if other is pd.NA:
+            expected = pd.array([None, None, None], dtype="boolean")
+        else:
+            values = op(left._data, other)
+            expected = pd.arrays.BooleanArray(values, left._mask, copy=True)
+        tm.assert_extension_array_equal(result, expected)
+
+        # ensure we haven't mutated anything inplace
+        result[0] = pd.NA
+        tm.assert_extension_array_equal(left, pd.array([1, 0, None], dtype=dtype))
+
+
+class NumericOps:
+    # Shared by IntegerArray and FloatingArray, not BooleanArray
+
+    def test_searchsorted_nan(self, dtype):
+        # The base class casts to object dtype, for which searchsorted returns
+        #  0 from the left and 10 from the right.
+        arr = pd.array(range(10), dtype=dtype)
+
+        assert arr.searchsorted(np.nan, side="left") == 10
+        assert arr.searchsorted(np.nan, side="right") == 10
+
+    def test_no_shared_mask(self, data):
+        result = data + 1
+        assert not tm.shares_memory(result, data)
+
+    def test_array(self, comparison_op, dtype):
+        op = comparison_op
+
+        left = pd.array([0, 1, 2, None, None, None], dtype=dtype)
+        right = pd.array([0, 1, None, 0, 1, None], dtype=dtype)
+
+        result = op(left, right)
+        values = op(left._data, right._data)
+        mask = left._mask | right._mask
+
+        expected = pd.arrays.BooleanArray(values, mask)
+        tm.assert_extension_array_equal(result, expected)
+
+        # ensure we haven't mutated anything inplace
+        result[0] = pd.NA
+        tm.assert_extension_array_equal(
+            left, pd.array([0, 1, 2, None, None, None], dtype=dtype)
+        )
+        tm.assert_extension_array_equal(
+            right, pd.array([0, 1, None, 0, 1, None], dtype=dtype)
+        )
+
+    def test_compare_with_booleanarray(self, comparison_op, dtype):
+        op = comparison_op
+
+        left = pd.array([True, False, None] * 3, dtype="boolean")
+        right = pd.array([0] * 3 + [1] * 3 + [None] * 3, dtype=dtype)
+        other = pd.array([False] * 3 + [True] * 3 + [None] * 3, dtype="boolean")
+
+        expected = op(left, other)
+        result = op(left, right)
+        tm.assert_extension_array_equal(result, expected)
+
+        # reversed op
+        expected = op(other, left)
+        result = op(right, left)
+        tm.assert_extension_array_equal(result, expected)
+
+    def test_compare_to_string(self, dtype):
+        # GH#28930
+        ser = pd.Series([1, None], dtype=dtype)
+        result = ser == "a"
+        expected = pd.Series([False, pd.NA], dtype="boolean")
+
+        tm.assert_series_equal(result, expected)
+
+    def test_ufunc_with_out(self, dtype):
+        arr = pd.array([1, 2, 3], dtype=dtype)
+        arr2 = pd.array([1, 2, pd.NA], dtype=dtype)
+
+        mask = arr == arr
+        mask2 = arr2 == arr2
+
+        result = np.zeros(3, dtype=bool)
+        result |= mask
+        # If MaskedArray.__array_ufunc__ handled "out" appropriately,
+        #  `result` should still be an ndarray.
+        assert isinstance(result, np.ndarray)
+        assert result.all()
+
+        # result |= mask worked because mask could be cast losslessly to
+        #  boolean ndarray. mask2 can't, so this raises
+        result = np.zeros(3, dtype=bool)
+        msg = "Specify an appropriate 'na_value' for this dtype"
+        with pytest.raises(ValueError, match=msg):
+            result |= mask2
+
+        # addition
+        res = np.add(arr, arr2)
+        expected = pd.array([2, 4, pd.NA], dtype=dtype)
+        tm.assert_extension_array_equal(res, expected)
+
+        # when passing out=arr, we will modify 'arr' inplace.
+        res = np.add(arr, arr2, out=arr)
+        assert res is arr
+        tm.assert_extension_array_equal(res, expected)
+        tm.assert_extension_array_equal(arr, expected)
+
+    def test_mul_td64_array(self, dtype):
+        # GH#45622
+        arr = pd.array([1, 2, pd.NA], dtype=dtype)
+        other = np.arange(3, dtype=np.int64).view("m8[ns]")
+
+        result = arr * other
+        expected = pd.array([pd.Timedelta(0), pd.Timedelta(2), pd.NaT])
+        tm.assert_extension_array_equal(result, expected)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/test_array.py

@@ -0,0 +1,478 @@
+import datetime
+import decimal
+import re
+
+import numpy as np
+import pytest
+import pytz
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.api.extensions import register_extension_dtype
+from pandas.arrays import (
+    BooleanArray,
+    DatetimeArray,
+    FloatingArray,
+    IntegerArray,
+    IntervalArray,
+    SparseArray,
+    TimedeltaArray,
+)
+from pandas.core.arrays import (
+    NumpyExtensionArray,
+    period_array,
+)
+from pandas.tests.extension.decimal import (
+    DecimalArray,
+    DecimalDtype,
+    to_decimal,
+)
+
+
+@pytest.mark.parametrize("dtype_unit", ["M8[h]", "M8[m]", "m8[h]", "M8[m]"])
+def test_dt64_array(dtype_unit):
+    # PR 53817
+    dtype_var = np.dtype(dtype_unit)
+    msg = (
+        r"datetime64 and timedelta64 dtype resolutions other than "
+        r"'s', 'ms', 'us', and 'ns' are deprecated. "
+        r"In future releases passing unsupported resolutions will "
+        r"raise an exception."
+    )
+    with tm.assert_produces_warning(FutureWarning, match=re.escape(msg)):
+        pd.array([], dtype=dtype_var)
+
+
+@pytest.mark.parametrize(
+    "data, dtype, expected",
+    [
+        # Basic NumPy defaults.
+        ([], None, FloatingArray._from_sequence([], dtype="Float64")),
+        ([1, 2], None, IntegerArray._from_sequence([1, 2], dtype="Int64")),
+        ([1, 2], object, NumpyExtensionArray(np.array([1, 2], dtype=object))),
+        (
+            [1, 2],
+            np.dtype("float32"),
+            NumpyExtensionArray(np.array([1.0, 2.0], dtype=np.dtype("float32"))),
+        ),
+        (
+            np.array([], dtype=object),
+            None,
+            NumpyExtensionArray(np.array([], dtype=object)),
+        ),
+        (
+            np.array([1, 2], dtype="int64"),
+            None,
+            IntegerArray._from_sequence([1, 2], dtype="Int64"),
+        ),
+        (
+            np.array([1.0, 2.0], dtype="float64"),
+            None,
+            FloatingArray._from_sequence([1.0, 2.0], dtype="Float64"),
+        ),
+        # String alias passes through to NumPy
+        ([1, 2], "float32", NumpyExtensionArray(np.array([1, 2], dtype="float32"))),
+        ([1, 2], "int64", NumpyExtensionArray(np.array([1, 2], dtype=np.int64))),
+        # GH#44715 FloatingArray does not support float16, so fall
+        #  back to NumpyExtensionArray
+        (
+            np.array([1, 2], dtype=np.float16),
+            None,
+            NumpyExtensionArray(np.array([1, 2], dtype=np.float16)),
+        ),
+        # idempotency with e.g. pd.array(pd.array([1, 2], dtype="int64"))
+        (
+            NumpyExtensionArray(np.array([1, 2], dtype=np.int32)),
+            None,
+            NumpyExtensionArray(np.array([1, 2], dtype=np.int32)),
+        ),
+        # Period alias
+        (
+            [pd.Period("2000", "D"), pd.Period("2001", "D")],
+            "Period[D]",
+            period_array(["2000", "2001"], freq="D"),
+        ),
+        # Period dtype
+        (
+            [pd.Period("2000", "D")],
+            pd.PeriodDtype("D"),
+            period_array(["2000"], freq="D"),
+        ),
+        # Datetime (naive)
+        (
+            [1, 2],
+            np.dtype("datetime64[ns]"),
+            DatetimeArray._from_sequence(
+                np.array([1, 2], dtype="M8[ns]"), dtype="M8[ns]"
+            ),
+        ),
+        (
+            [1, 2],
+            np.dtype("datetime64[s]"),
+            DatetimeArray._from_sequence(
+                np.array([1, 2], dtype="M8[s]"), dtype="M8[s]"
+            ),
+        ),
+        (
+            np.array([1, 2], dtype="datetime64[ns]"),
+            None,
+            DatetimeArray._from_sequence(
+                np.array([1, 2], dtype="M8[ns]"), dtype="M8[ns]"
+            ),
+        ),
+        (
+            pd.DatetimeIndex(["2000", "2001"]),
+            np.dtype("datetime64[ns]"),
+            DatetimeArray._from_sequence(["2000", "2001"], dtype="M8[ns]"),
+        ),
+        (
+            pd.DatetimeIndex(["2000", "2001"]),
+            None,
+            DatetimeArray._from_sequence(["2000", "2001"], dtype="M8[ns]"),
+        ),
+        (
+            ["2000", "2001"],
+            np.dtype("datetime64[ns]"),
+            DatetimeArray._from_sequence(["2000", "2001"], dtype="M8[ns]"),
+        ),
+        # Datetime (tz-aware)
+        (
+            ["2000", "2001"],
+            pd.DatetimeTZDtype(tz="CET"),
+            DatetimeArray._from_sequence(
+                ["2000", "2001"], dtype=pd.DatetimeTZDtype(tz="CET")
+            ),
+        ),
+        # Timedelta
+        (
+            ["1h", "2h"],
+            np.dtype("timedelta64[ns]"),
+            TimedeltaArray._from_sequence(["1h", "2h"], dtype="m8[ns]"),
+        ),
+        (
+            pd.TimedeltaIndex(["1h", "2h"]),
+            np.dtype("timedelta64[ns]"),
+            TimedeltaArray._from_sequence(["1h", "2h"], dtype="m8[ns]"),
+        ),
+        (
+            np.array([1, 2], dtype="m8[s]"),
+            np.dtype("timedelta64[s]"),
+            TimedeltaArray._from_sequence(
+                np.array([1, 2], dtype="m8[s]"), dtype="m8[s]"
+            ),
+        ),
+        (
+            pd.TimedeltaIndex(["1h", "2h"]),
+            None,
+            TimedeltaArray._from_sequence(["1h", "2h"], dtype="m8[ns]"),
+        ),
+        (
+            # preserve non-nano, i.e. don't cast to NumpyExtensionArray
+            TimedeltaArray._simple_new(
+                np.arange(5, dtype=np.int64).view("m8[s]"), dtype=np.dtype("m8[s]")
+            ),
+            None,
+            TimedeltaArray._simple_new(
+                np.arange(5, dtype=np.int64).view("m8[s]"), dtype=np.dtype("m8[s]")
+            ),
+        ),
+        (
+            # preserve non-nano, i.e. don't cast to NumpyExtensionArray
+            TimedeltaArray._simple_new(
+                np.arange(5, dtype=np.int64).view("m8[s]"), dtype=np.dtype("m8[s]")
+            ),
+            np.dtype("m8[s]"),
+            TimedeltaArray._simple_new(
+                np.arange(5, dtype=np.int64).view("m8[s]"), dtype=np.dtype("m8[s]")
+            ),
+        ),
+        # Category
+        (["a", "b"], "category", pd.Categorical(["a", "b"])),
+        (
+            ["a", "b"],
+            pd.CategoricalDtype(None, ordered=True),
+            pd.Categorical(["a", "b"], ordered=True),
+        ),
+        # Interval
+        (
+            [pd.Interval(1, 2), pd.Interval(3, 4)],
+            "interval",
+            IntervalArray.from_tuples([(1, 2), (3, 4)]),
+        ),
+        # Sparse
+        ([0, 1], "Sparse[int64]", SparseArray([0, 1], dtype="int64")),
+        # IntegerNA
+        ([1, None], "Int16", pd.array([1, None], dtype="Int16")),
+        (
+            pd.Series([1, 2]),
+            None,
+            NumpyExtensionArray(np.array([1, 2], dtype=np.int64)),
+        ),
+        # String
+        (
+            ["a", None],
+            "string",
+            pd.StringDtype()
+            .construct_array_type()
+            ._from_sequence(["a", None], dtype=pd.StringDtype()),
+        ),
+        (
+            ["a", None],
+            pd.StringDtype(),
+            pd.StringDtype()
+            .construct_array_type()
+            ._from_sequence(["a", None], dtype=pd.StringDtype()),
+        ),
+        # Boolean
+        (
+            [True, None],
+            "boolean",
+            BooleanArray._from_sequence([True, None], dtype="boolean"),
+        ),
+        (
+            [True, None],
+            pd.BooleanDtype(),
+            BooleanArray._from_sequence([True, None], dtype="boolean"),
+        ),
+        # Index
+        (pd.Index([1, 2]), None, NumpyExtensionArray(np.array([1, 2], dtype=np.int64))),
+        # Series[EA] returns the EA
+        (
+            pd.Series(pd.Categorical(["a", "b"], categories=["a", "b", "c"])),
+            None,
+            pd.Categorical(["a", "b"], categories=["a", "b", "c"]),
+        ),
+        # "3rd party" EAs work
+        ([decimal.Decimal(0), decimal.Decimal(1)], "decimal", to_decimal([0, 1])),
+        # pass an ExtensionArray, but a different dtype
+        (
+            period_array(["2000", "2001"], freq="D"),
+            "category",
+            pd.Categorical([pd.Period("2000", "D"), pd.Period("2001", "D")]),
+        ),
+    ],
+)
+def test_array(data, dtype, expected):
+    result = pd.array(data, dtype=dtype)
+    tm.assert_equal(result, expected)
+
+
+def test_array_copy():
+    a = np.array([1, 2])
+    # default is to copy
+    b = pd.array(a, dtype=a.dtype)
+    assert not tm.shares_memory(a, b)
+
+    # copy=True
+    b = pd.array(a, dtype=a.dtype, copy=True)
+    assert not tm.shares_memory(a, b)
+
+    # copy=False
+    b = pd.array(a, dtype=a.dtype, copy=False)
+    assert tm.shares_memory(a, b)
+
+
+cet = pytz.timezone("CET")
+
+
+@pytest.mark.parametrize(
+    "data, expected",
+    [
+        # period
+        (
+            [pd.Period("2000", "D"), pd.Period("2001", "D")],
+            period_array(["2000", "2001"], freq="D"),
+        ),
+        # interval
+        ([pd.Interval(0, 1), pd.Interval(1, 2)], IntervalArray.from_breaks([0, 1, 2])),
+        # datetime
+        (
+            [pd.Timestamp("2000"), pd.Timestamp("2001")],
+            DatetimeArray._from_sequence(["2000", "2001"], dtype="M8[ns]"),
+        ),
+        (
+            [datetime.datetime(2000, 1, 1), datetime.datetime(2001, 1, 1)],
+            DatetimeArray._from_sequence(["2000", "2001"], dtype="M8[ns]"),
+        ),
+        (
+            np.array([1, 2], dtype="M8[ns]"),
+            DatetimeArray._from_sequence(np.array([1, 2], dtype="M8[ns]")),
+        ),
+        (
+            np.array([1, 2], dtype="M8[us]"),
+            DatetimeArray._simple_new(
+                np.array([1, 2], dtype="M8[us]"), dtype=np.dtype("M8[us]")
+            ),
+        ),
+        # datetimetz
+        (
+            [pd.Timestamp("2000", tz="CET"), pd.Timestamp("2001", tz="CET")],
+            DatetimeArray._from_sequence(
+                ["2000", "2001"], dtype=pd.DatetimeTZDtype(tz="CET", unit="ns")
+            ),
+        ),
+        (
+            [
+                datetime.datetime(2000, 1, 1, tzinfo=cet),
+                datetime.datetime(2001, 1, 1, tzinfo=cet),
+            ],
+            DatetimeArray._from_sequence(
+                ["2000", "2001"], dtype=pd.DatetimeTZDtype(tz=cet, unit="ns")
+            ),
+        ),
+        # timedelta
+        (
+            [pd.Timedelta("1h"), pd.Timedelta("2h")],
+            TimedeltaArray._from_sequence(["1h", "2h"], dtype="m8[ns]"),
+        ),
+        (
+            np.array([1, 2], dtype="m8[ns]"),
+            TimedeltaArray._from_sequence(np.array([1, 2], dtype="m8[ns]")),
+        ),
+        (
+            np.array([1, 2], dtype="m8[us]"),
+            TimedeltaArray._from_sequence(np.array([1, 2], dtype="m8[us]")),
+        ),
+        # integer
+        ([1, 2], IntegerArray._from_sequence([1, 2], dtype="Int64")),
+        ([1, None], IntegerArray._from_sequence([1, None], dtype="Int64")),
+        ([1, pd.NA], IntegerArray._from_sequence([1, pd.NA], dtype="Int64")),
+        ([1, np.nan], IntegerArray._from_sequence([1, np.nan], dtype="Int64")),
+        # float
+        ([0.1, 0.2], FloatingArray._from_sequence([0.1, 0.2], dtype="Float64")),
+        ([0.1, None], FloatingArray._from_sequence([0.1, pd.NA], dtype="Float64")),
+        ([0.1, np.nan], FloatingArray._from_sequence([0.1, pd.NA], dtype="Float64")),
+        ([0.1, pd.NA], FloatingArray._from_sequence([0.1, pd.NA], dtype="Float64")),
+        # integer-like float
+        ([1.0, 2.0], FloatingArray._from_sequence([1.0, 2.0], dtype="Float64")),
+        ([1.0, None], FloatingArray._from_sequence([1.0, pd.NA], dtype="Float64")),
+        ([1.0, np.nan], FloatingArray._from_sequence([1.0, pd.NA], dtype="Float64")),
+        ([1.0, pd.NA], FloatingArray._from_sequence([1.0, pd.NA], dtype="Float64")),
+        # mixed-integer-float
+        ([1, 2.0], FloatingArray._from_sequence([1.0, 2.0], dtype="Float64")),
+        (
+            [1, np.nan, 2.0],
+            FloatingArray._from_sequence([1.0, None, 2.0], dtype="Float64"),
+        ),
+        # string
+        (
+            ["a", "b"],
+            pd.StringDtype()
+            .construct_array_type()
+            ._from_sequence(["a", "b"], dtype=pd.StringDtype()),
+        ),
+        (
+            ["a", None],
+            pd.StringDtype()
+            .construct_array_type()
+            ._from_sequence(["a", None], dtype=pd.StringDtype()),
+        ),
+        # Boolean
+        ([True, False], BooleanArray._from_sequence([True, False], dtype="boolean")),
+        ([True, None], BooleanArray._from_sequence([True, None], dtype="boolean")),
+    ],
+)
+def test_array_inference(data, expected):
+    result = pd.array(data)
+    tm.assert_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+    "data",
+    [
+        # mix of frequencies
+        [pd.Period("2000", "D"), pd.Period("2001", "Y")],
+        # mix of closed
+        [pd.Interval(0, 1, closed="left"), pd.Interval(1, 2, closed="right")],
+        # Mix of timezones
+        [pd.Timestamp("2000", tz="CET"), pd.Timestamp("2000", tz="UTC")],
+        # Mix of tz-aware and tz-naive
+        [pd.Timestamp("2000", tz="CET"), pd.Timestamp("2000")],
+        np.array([pd.Timestamp("2000"), pd.Timestamp("2000", tz="CET")]),
+    ],
+)
+def test_array_inference_fails(data):
+    result = pd.array(data)
+    expected = NumpyExtensionArray(np.array(data, dtype=object))
+    tm.assert_extension_array_equal(result, expected)
+
+
+@pytest.mark.parametrize("data", [np.array(0)])
+def test_nd_raises(data):
+    with pytest.raises(ValueError, match="NumpyExtensionArray must be 1-dimensional"):
+        pd.array(data, dtype="int64")
+
+
+def test_scalar_raises():
+    with pytest.raises(ValueError, match="Cannot pass scalar '1'"):
+        pd.array(1)
+
+
+def test_dataframe_raises():
+    # GH#51167 don't accidentally cast to StringArray by doing inference on columns
+    df = pd.DataFrame([[1, 2], [3, 4]], columns=["A", "B"])
+    msg = "Cannot pass DataFrame to 'pandas.array'"
+    with pytest.raises(TypeError, match=msg):
+        pd.array(df)
+
+
+def test_bounds_check():
+    # GH21796
+    with pytest.raises(
+        TypeError, match=r"cannot safely cast non-equivalent int(32|64) to uint16"
+    ):
+        pd.array([-1, 2, 3], dtype="UInt16")
+
+
+# ---------------------------------------------------------------------------
+# A couple dummy classes to ensure that Series and Indexes are unboxed before
+# getting to the EA classes.
+
+
+@register_extension_dtype
+class DecimalDtype2(DecimalDtype):
+    name = "decimal2"
+
+    @classmethod
+    def construct_array_type(cls):
+        """
+        Return the array type associated with this dtype.
+
+        Returns
+        -------
+        type
+        """
+        return DecimalArray2
+
+
+class DecimalArray2(DecimalArray):
+    @classmethod
+    def _from_sequence(cls, scalars, *, dtype=None, copy=False):
+        if isinstance(scalars, (pd.Series, pd.Index)):
+            raise TypeError("scalars should not be of type pd.Series or pd.Index")
+
+        return super()._from_sequence(scalars, dtype=dtype, copy=copy)
+
+
+def test_array_unboxes(index_or_series):
+    box = index_or_series
+
+    data = box([decimal.Decimal("1"), decimal.Decimal("2")])
+    dtype = DecimalDtype2()
+    # make sure it works
+    with pytest.raises(
+        TypeError, match="scalars should not be of type pd.Series or pd.Index"
+    ):
+        DecimalArray2._from_sequence(data, dtype=dtype)
+
+    result = pd.array(data, dtype="decimal2")
+    expected = DecimalArray2._from_sequence(data.values, dtype=dtype)
+    tm.assert_equal(result, expected)
+
+
+def test_array_to_numpy_na():
+    # GH#40638
+    arr = pd.array([pd.NA, 1], dtype="string[python]")
+    result = arr.to_numpy(na_value=True, dtype=bool)
+    expected = np.array([True, True])
+    tm.assert_numpy_array_equal(result, expected)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/test_datetimelike.py

@@ -0,0 +1,1344 @@
+from __future__ import annotations
+
+import re
+import warnings
+
+import numpy as np
+import pytest
+
+from pandas._libs import (
+    NaT,
+    OutOfBoundsDatetime,
+    Timestamp,
+)
+from pandas._libs.tslibs.dtypes import freq_to_period_freqstr
+from pandas.compat.numpy import np_version_gt2
+
+import pandas as pd
+from pandas import (
+    DatetimeIndex,
+    Period,
+    PeriodIndex,
+    TimedeltaIndex,
+)
+import pandas._testing as tm
+from pandas.core.arrays import (
+    DatetimeArray,
+    NumpyExtensionArray,
+    PeriodArray,
+    TimedeltaArray,
+)
+
+
+# TODO: more freq variants
+@pytest.fixture(params=["D", "B", "W", "ME", "QE", "YE"])
+def freqstr(request):
+    """Fixture returning parametrized frequency in string format."""
+    return request.param
+
+
+@pytest.fixture
+def period_index(freqstr):
+    """
+    A fixture to provide PeriodIndex objects with different frequencies.
+
+    Most PeriodArray behavior is already tested in PeriodIndex tests,
+    so here we just test that the PeriodArray behavior matches
+    the PeriodIndex behavior.
+    """
+    # TODO: non-monotone indexes; NaTs, different start dates
+    with warnings.catch_warnings():
+        # suppress deprecation of Period[B]
+        warnings.filterwarnings(
+            "ignore", message="Period with BDay freq", category=FutureWarning
+        )
+        freqstr = freq_to_period_freqstr(1, freqstr)
+        pi = pd.period_range(start=Timestamp("2000-01-01"), periods=100, freq=freqstr)
+    return pi
+
+
+@pytest.fixture
+def datetime_index(freqstr):
+    """
+    A fixture to provide DatetimeIndex objects with different frequencies.
+
+    Most DatetimeArray behavior is already tested in DatetimeIndex tests,
+    so here we just test that the DatetimeArray behavior matches
+    the DatetimeIndex behavior.
+    """
+    # TODO: non-monotone indexes; NaTs, different start dates, timezones
+    dti = pd.date_range(start=Timestamp("2000-01-01"), periods=100, freq=freqstr)
+    return dti
+
+
+@pytest.fixture
+def timedelta_index():
+    """
+    A fixture to provide TimedeltaIndex objects with different frequencies.
+     Most TimedeltaArray behavior is already tested in TimedeltaIndex tests,
+    so here we just test that the TimedeltaArray behavior matches
+    the TimedeltaIndex behavior.
+    """
+    # TODO: flesh this out
+    return TimedeltaIndex(["1 Day", "3 Hours", "NaT"])
+
+
+class SharedTests:
+    index_cls: type[DatetimeIndex | PeriodIndex | TimedeltaIndex]
+
+    @pytest.fixture
+    def arr1d(self):
+        """Fixture returning DatetimeArray with daily frequency."""
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        if self.array_cls is PeriodArray:
+            arr = self.array_cls(data, freq="D")
+        else:
+            arr = self.index_cls(data, freq="D")._data
+        return arr
+
+    def test_compare_len1_raises(self, arr1d):
+        # make sure we raise when comparing with different lengths, specific
+        #  to the case where one has length-1, which numpy would broadcast
+        arr = arr1d
+        idx = self.index_cls(arr)
+
+        with pytest.raises(ValueError, match="Lengths must match"):
+            arr == arr[:1]
+
+        # test the index classes while we're at it, GH#23078
+        with pytest.raises(ValueError, match="Lengths must match"):
+            idx <= idx[[0]]
+
+    @pytest.mark.parametrize(
+        "result",
+        [
+            pd.date_range("2020", periods=3),
+            pd.date_range("2020", periods=3, tz="UTC"),
+            pd.timedelta_range("0 days", periods=3),
+            pd.period_range("2020Q1", periods=3, freq="Q"),
+        ],
+    )
+    def test_compare_with_Categorical(self, result):
+        expected = pd.Categorical(result)
+        assert all(result == expected)
+        assert not any(result != expected)
+
+    @pytest.mark.parametrize("reverse", [True, False])
+    @pytest.mark.parametrize("as_index", [True, False])
+    def test_compare_categorical_dtype(self, arr1d, as_index, reverse, ordered):
+        other = pd.Categorical(arr1d, ordered=ordered)
+        if as_index:
+            other = pd.CategoricalIndex(other)
+
+        left, right = arr1d, other
+        if reverse:
+            left, right = right, left
+
+        ones = np.ones(arr1d.shape, dtype=bool)
+        zeros = ~ones
+
+        result = left == right
+        tm.assert_numpy_array_equal(result, ones)
+
+        result = left != right
+        tm.assert_numpy_array_equal(result, zeros)
+
+        if not reverse and not as_index:
+            # Otherwise Categorical raises TypeError bc it is not ordered
+            # TODO: we should probably get the same behavior regardless?
+            result = left < right
+            tm.assert_numpy_array_equal(result, zeros)
+
+            result = left <= right
+            tm.assert_numpy_array_equal(result, ones)
+
+            result = left > right
+            tm.assert_numpy_array_equal(result, zeros)
+
+            result = left >= right
+            tm.assert_numpy_array_equal(result, ones)
+
+    def test_take(self):
+        data = np.arange(100, dtype="i8") * 24 * 3600 * 10**9
+        np.random.default_rng(2).shuffle(data)
+
+        if self.array_cls is PeriodArray:
+            arr = PeriodArray(data, dtype="period[D]")
+        else:
+            arr = self.index_cls(data)._data
+        idx = self.index_cls._simple_new(arr)
+
+        takers = [1, 4, 94]
+        result = arr.take(takers)
+        expected = idx.take(takers)
+
+        tm.assert_index_equal(self.index_cls(result), expected)
+
+        takers = np.array([1, 4, 94])
+        result = arr.take(takers)
+        expected = idx.take(takers)
+
+        tm.assert_index_equal(self.index_cls(result), expected)
+
+    @pytest.mark.parametrize("fill_value", [2, 2.0, Timestamp(2021, 1, 1, 12).time])
+    def test_take_fill_raises(self, fill_value, arr1d):
+        msg = f"value should be a '{arr1d._scalar_type.__name__}' or 'NaT'. Got"
+        with pytest.raises(TypeError, match=msg):
+            arr1d.take([0, 1], allow_fill=True, fill_value=fill_value)
+
+    def test_take_fill(self, arr1d):
+        arr = arr1d
+
+        result = arr.take([-1, 1], allow_fill=True, fill_value=None)
+        assert result[0] is NaT
+
+        result = arr.take([-1, 1], allow_fill=True, fill_value=np.nan)
+        assert result[0] is NaT
+
+        result = arr.take([-1, 1], allow_fill=True, fill_value=NaT)
+        assert result[0] is NaT
+
+    @pytest.mark.filterwarnings(
+        "ignore:Period with BDay freq is deprecated:FutureWarning"
+    )
+    def test_take_fill_str(self, arr1d):
+        # Cast str fill_value matching other fill_value-taking methods
+        result = arr1d.take([-1, 1], allow_fill=True, fill_value=str(arr1d[-1]))
+        expected = arr1d[[-1, 1]]
+        tm.assert_equal(result, expected)
+
+        msg = f"value should be a '{arr1d._scalar_type.__name__}' or 'NaT'. Got"
+        with pytest.raises(TypeError, match=msg):
+            arr1d.take([-1, 1], allow_fill=True, fill_value="foo")
+
+    def test_concat_same_type(self, arr1d):
+        arr = arr1d
+        idx = self.index_cls(arr)
+        idx = idx.insert(0, NaT)
+        arr = arr1d
+
+        result = arr._concat_same_type([arr[:-1], arr[1:], arr])
+        arr2 = arr.astype(object)
+        expected = self.index_cls(np.concatenate([arr2[:-1], arr2[1:], arr2]))
+
+        tm.assert_index_equal(self.index_cls(result), expected)
+
+    def test_unbox_scalar(self, arr1d):
+        result = arr1d._unbox_scalar(arr1d[0])
+        expected = arr1d._ndarray.dtype.type
+        assert isinstance(result, expected)
+
+        result = arr1d._unbox_scalar(NaT)
+        assert isinstance(result, expected)
+
+        msg = f"'value' should be a {self.scalar_type.__name__}."
+        with pytest.raises(ValueError, match=msg):
+            arr1d._unbox_scalar("foo")
+
+    def test_check_compatible_with(self, arr1d):
+        arr1d._check_compatible_with(arr1d[0])
+        arr1d._check_compatible_with(arr1d[:1])
+        arr1d._check_compatible_with(NaT)
+
+    def test_scalar_from_string(self, arr1d):
+        result = arr1d._scalar_from_string(str(arr1d[0]))
+        assert result == arr1d[0]
+
+    def test_reduce_invalid(self, arr1d):
+        msg = "does not support reduction 'not a method'"
+        with pytest.raises(TypeError, match=msg):
+            arr1d._reduce("not a method")
+
+    @pytest.mark.parametrize("method", ["pad", "backfill"])
+    def test_fillna_method_doesnt_change_orig(self, method):
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        if self.array_cls is PeriodArray:
+            arr = self.array_cls(data, dtype="period[D]")
+        else:
+            arr = self.array_cls._from_sequence(data)
+        arr[4] = NaT
+
+        fill_value = arr[3] if method == "pad" else arr[5]
+
+        result = arr._pad_or_backfill(method=method)
+        assert result[4] == fill_value
+
+        # check that the original was not changed
+        assert arr[4] is NaT
+
+    def test_searchsorted(self):
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        if self.array_cls is PeriodArray:
+            arr = self.array_cls(data, dtype="period[D]")
+        else:
+            arr = self.array_cls._from_sequence(data)
+
+        # scalar
+        result = arr.searchsorted(arr[1])
+        assert result == 1
+
+        result = arr.searchsorted(arr[2], side="right")
+        assert result == 3
+
+        # own-type
+        result = arr.searchsorted(arr[1:3])
+        expected = np.array([1, 2], dtype=np.intp)
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = arr.searchsorted(arr[1:3], side="right")
+        expected = np.array([2, 3], dtype=np.intp)
+        tm.assert_numpy_array_equal(result, expected)
+
+        # GH#29884 match numpy convention on whether NaT goes
+        #  at the end or the beginning
+        result = arr.searchsorted(NaT)
+        assert result == 10
+
+    @pytest.mark.parametrize("box", [None, "index", "series"])
+    def test_searchsorted_castable_strings(self, arr1d, box, string_storage):
+        arr = arr1d
+        if box is None:
+            pass
+        elif box == "index":
+            # Test the equivalent Index.searchsorted method while we're here
+            arr = self.index_cls(arr)
+        else:
+            # Test the equivalent Series.searchsorted method while we're here
+            arr = pd.Series(arr)
+
+        # scalar
+        result = arr.searchsorted(str(arr[1]))
+        assert result == 1
+
+        result = arr.searchsorted(str(arr[2]), side="right")
+        assert result == 3
+
+        result = arr.searchsorted([str(x) for x in arr[1:3]])
+        expected = np.array([1, 2], dtype=np.intp)
+        tm.assert_numpy_array_equal(result, expected)
+
+        with pytest.raises(
+            TypeError,
+            match=re.escape(
+                f"value should be a '{arr1d._scalar_type.__name__}', 'NaT', "
+                "or array of those. Got 'str' instead."
+            ),
+        ):
+            arr.searchsorted("foo")
+
+        with pd.option_context("string_storage", string_storage):
+            with pytest.raises(
+                TypeError,
+                match=re.escape(
+                    f"value should be a '{arr1d._scalar_type.__name__}', 'NaT', "
+                    "or array of those. Got string array instead."
+                ),
+            ):
+                arr.searchsorted([str(arr[1]), "baz"])
+
+    def test_getitem_near_implementation_bounds(self):
+        # We only check tz-naive for DTA bc the bounds are slightly different
+        #  for other tzs
+        i8vals = np.asarray([NaT._value + n for n in range(1, 5)], dtype="i8")
+        if self.array_cls is PeriodArray:
+            arr = self.array_cls(i8vals, dtype="period[ns]")
+        else:
+            arr = self.index_cls(i8vals, freq="ns")._data
+        arr[0]  # should not raise OutOfBoundsDatetime
+
+        index = pd.Index(arr)
+        index[0]  # should not raise OutOfBoundsDatetime
+
+        ser = pd.Series(arr)
+        ser[0]  # should not raise OutOfBoundsDatetime
+
+    def test_getitem_2d(self, arr1d):
+        # 2d slicing on a 1D array
+        expected = type(arr1d)._simple_new(
+            arr1d._ndarray[:, np.newaxis], dtype=arr1d.dtype
+        )
+        result = arr1d[:, np.newaxis]
+        tm.assert_equal(result, expected)
+
+        # Lookup on a 2D array
+        arr2d = expected
+        expected = type(arr2d)._simple_new(arr2d._ndarray[:3, 0], dtype=arr2d.dtype)
+        result = arr2d[:3, 0]
+        tm.assert_equal(result, expected)
+
+        # Scalar lookup
+        result = arr2d[-1, 0]
+        expected = arr1d[-1]
+        assert result == expected
+
+    def test_iter_2d(self, arr1d):
+        data2d = arr1d._ndarray[:3, np.newaxis]
+        arr2d = type(arr1d)._simple_new(data2d, dtype=arr1d.dtype)
+        result = list(arr2d)
+        assert len(result) == 3
+        for x in result:
+            assert isinstance(x, type(arr1d))
+            assert x.ndim == 1
+            assert x.dtype == arr1d.dtype
+
+    def test_repr_2d(self, arr1d):
+        data2d = arr1d._ndarray[:3, np.newaxis]
+        arr2d = type(arr1d)._simple_new(data2d, dtype=arr1d.dtype)
+
+        result = repr(arr2d)
+
+        if isinstance(arr2d, TimedeltaArray):
+            expected = (
+                f"<{type(arr2d).__name__}>\n"
+                "[\n"
+                f"['{arr1d[0]._repr_base()}'],\n"
+                f"['{arr1d[1]._repr_base()}'],\n"
+                f"['{arr1d[2]._repr_base()}']\n"
+                "]\n"
+                f"Shape: (3, 1), dtype: {arr1d.dtype}"
+            )
+        else:
+            expected = (
+                f"<{type(arr2d).__name__}>\n"
+                "[\n"
+                f"['{arr1d[0]}'],\n"
+                f"['{arr1d[1]}'],\n"
+                f"['{arr1d[2]}']\n"
+                "]\n"
+                f"Shape: (3, 1), dtype: {arr1d.dtype}"
+            )
+
+        assert result == expected
+
+    def test_setitem(self):
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        if self.array_cls is PeriodArray:
+            arr = self.array_cls(data, dtype="period[D]")
+        else:
+            arr = self.index_cls(data, freq="D")._data
+
+        arr[0] = arr[1]
+        expected = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        expected[0] = expected[1]
+
+        tm.assert_numpy_array_equal(arr.asi8, expected)
+
+        arr[:2] = arr[-2:]
+        expected[:2] = expected[-2:]
+        tm.assert_numpy_array_equal(arr.asi8, expected)
+
+    @pytest.mark.parametrize(
+        "box",
+        [
+            pd.Index,
+            pd.Series,
+            np.array,
+            list,
+            NumpyExtensionArray,
+        ],
+    )
+    def test_setitem_object_dtype(self, box, arr1d):
+        expected = arr1d.copy()[::-1]
+        if expected.dtype.kind in ["m", "M"]:
+            expected = expected._with_freq(None)
+
+        vals = expected
+        if box is list:
+            vals = list(vals)
+        elif box is np.array:
+            # if we do np.array(x).astype(object) then dt64 and td64 cast to ints
+            vals = np.array(vals.astype(object))
+        elif box is NumpyExtensionArray:
+            vals = box(np.asarray(vals, dtype=object))
+        else:
+            vals = box(vals).astype(object)
+
+        arr1d[:] = vals
+
+        tm.assert_equal(arr1d, expected)
+
+    def test_setitem_strs(self, arr1d):
+        # Check that we parse strs in both scalar and listlike
+
+        # Setting list-like of strs
+        expected = arr1d.copy()
+        expected[[0, 1]] = arr1d[-2:]
+
+        result = arr1d.copy()
+        result[:2] = [str(x) for x in arr1d[-2:]]
+        tm.assert_equal(result, expected)
+
+        # Same thing but now for just a scalar str
+        expected = arr1d.copy()
+        expected[0] = arr1d[-1]
+
+        result = arr1d.copy()
+        result[0] = str(arr1d[-1])
+        tm.assert_equal(result, expected)
+
+    @pytest.mark.parametrize("as_index", [True, False])
+    def test_setitem_categorical(self, arr1d, as_index):
+        expected = arr1d.copy()[::-1]
+        if not isinstance(expected, PeriodArray):
+            expected = expected._with_freq(None)
+
+        cat = pd.Categorical(arr1d)
+        if as_index:
+            cat = pd.CategoricalIndex(cat)
+
+        arr1d[:] = cat[::-1]
+
+        tm.assert_equal(arr1d, expected)
+
+    def test_setitem_raises(self, arr1d):
+        arr = arr1d[:10]
+        val = arr[0]
+
+        with pytest.raises(IndexError, match="index 12 is out of bounds"):
+            arr[12] = val
+
+        with pytest.raises(TypeError, match="value should be a.* 'object'"):
+            arr[0] = object()
+
+        msg = "cannot set using a list-like indexer with a different length"
+        with pytest.raises(ValueError, match=msg):
+            # GH#36339
+            arr[[]] = [arr[1]]
+
+        msg = "cannot set using a slice indexer with a different length than"
+        with pytest.raises(ValueError, match=msg):
+            # GH#36339
+            arr[1:1] = arr[:3]
+
+    @pytest.mark.parametrize("box", [list, np.array, pd.Index, pd.Series])
+    def test_setitem_numeric_raises(self, arr1d, box):
+        # We dont case e.g. int64 to our own dtype for setitem
+
+        msg = (
+            f"value should be a '{arr1d._scalar_type.__name__}', "
+            "'NaT', or array of those. Got"
+        )
+        with pytest.raises(TypeError, match=msg):
+            arr1d[:2] = box([0, 1])
+
+        with pytest.raises(TypeError, match=msg):
+            arr1d[:2] = box([0.0, 1.0])
+
+    def test_inplace_arithmetic(self):
+        # GH#24115 check that iadd and isub are actually in-place
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        if self.array_cls is PeriodArray:
+            arr = self.array_cls(data, dtype="period[D]")
+        else:
+            arr = self.index_cls(data, freq="D")._data
+
+        expected = arr + pd.Timedelta(days=1)
+        arr += pd.Timedelta(days=1)
+        tm.assert_equal(arr, expected)
+
+        expected = arr - pd.Timedelta(days=1)
+        arr -= pd.Timedelta(days=1)
+        tm.assert_equal(arr, expected)
+
+    def test_shift_fill_int_deprecated(self, arr1d):
+        # GH#31971, enforced in 2.0
+        with pytest.raises(TypeError, match="value should be a"):
+            arr1d.shift(1, fill_value=1)
+
+    def test_median(self, arr1d):
+        arr = arr1d
+        if len(arr) % 2 == 0:
+            # make it easier to define `expected`
+            arr = arr[:-1]
+
+        expected = arr[len(arr) // 2]
+
+        result = arr.median()
+        assert type(result) is type(expected)
+        assert result == expected
+
+        arr[len(arr) // 2] = NaT
+        if not isinstance(expected, Period):
+            expected = arr[len(arr) // 2 - 1 : len(arr) // 2 + 2].mean()
+
+        assert arr.median(skipna=False) is NaT
+
+        result = arr.median()
+        assert type(result) is type(expected)
+        assert result == expected
+
+        assert arr[:0].median() is NaT
+        assert arr[:0].median(skipna=False) is NaT
+
+        # 2d Case
+        arr2 = arr.reshape(-1, 1)
+
+        result = arr2.median(axis=None)
+        assert type(result) is type(expected)
+        assert result == expected
+
+        assert arr2.median(axis=None, skipna=False) is NaT
+
+        result = arr2.median(axis=0)
+        expected2 = type(arr)._from_sequence([expected], dtype=arr.dtype)
+        tm.assert_equal(result, expected2)
+
+        result = arr2.median(axis=0, skipna=False)
+        expected2 = type(arr)._from_sequence([NaT], dtype=arr.dtype)
+        tm.assert_equal(result, expected2)
+
+        result = arr2.median(axis=1)
+        tm.assert_equal(result, arr)
+
+        result = arr2.median(axis=1, skipna=False)
+        tm.assert_equal(result, arr)
+
+    def test_from_integer_array(self):
+        arr = np.array([1, 2, 3], dtype=np.int64)
+        data = pd.array(arr, dtype="Int64")
+        if self.array_cls is PeriodArray:
+            expected = self.array_cls(arr, dtype=self.example_dtype)
+            result = self.array_cls(data, dtype=self.example_dtype)
+        else:
+            expected = self.array_cls._from_sequence(arr, dtype=self.example_dtype)
+            result = self.array_cls._from_sequence(data, dtype=self.example_dtype)
+
+        tm.assert_extension_array_equal(result, expected)
+
+
+class TestDatetimeArray(SharedTests):
+    index_cls = DatetimeIndex
+    array_cls = DatetimeArray
+    scalar_type = Timestamp
+    example_dtype = "M8[ns]"
+
+    @pytest.fixture
+    def arr1d(self, tz_naive_fixture, freqstr):
+        """
+        Fixture returning DatetimeArray with parametrized frequency and
+        timezones
+        """
+        tz = tz_naive_fixture
+        dti = pd.date_range("2016-01-01 01:01:00", periods=5, freq=freqstr, tz=tz)
+        dta = dti._data
+        return dta
+
+    def test_round(self, arr1d):
+        # GH#24064
+        dti = self.index_cls(arr1d)
+
+        result = dti.round(freq="2min")
+        expected = dti - pd.Timedelta(minutes=1)
+        expected = expected._with_freq(None)
+        tm.assert_index_equal(result, expected)
+
+        dta = dti._data
+        result = dta.round(freq="2min")
+        expected = expected._data._with_freq(None)
+        tm.assert_datetime_array_equal(result, expected)
+
+    def test_array_interface(self, datetime_index):
+        arr = datetime_index._data
+        copy_false = None if np_version_gt2 else False
+
+        # default asarray gives the same underlying data (for tz naive)
+        result = np.asarray(arr)
+        expected = arr._ndarray
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+        result = np.array(arr, copy=copy_false)
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+
+        # specifying M8[ns] gives the same result as default
+        result = np.asarray(arr, dtype="datetime64[ns]")
+        expected = arr._ndarray
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+        result = np.array(arr, dtype="datetime64[ns]", copy=copy_false)
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+        result = np.array(arr, dtype="datetime64[ns]")
+        if not np_version_gt2:
+            # TODO: GH 57739
+            assert result is not expected
+        tm.assert_numpy_array_equal(result, expected)
+
+        # to object dtype
+        result = np.asarray(arr, dtype=object)
+        expected = np.array(list(arr), dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+        # to other dtype always copies
+        result = np.asarray(arr, dtype="int64")
+        assert result is not arr.asi8
+        assert not np.may_share_memory(arr, result)
+        expected = arr.asi8.copy()
+        tm.assert_numpy_array_equal(result, expected)
+
+        # other dtypes handled by numpy
+        for dtype in ["float64", str]:
+            result = np.asarray(arr, dtype=dtype)
+            expected = np.asarray(arr).astype(dtype)
+            tm.assert_numpy_array_equal(result, expected)
+
+    def test_array_object_dtype(self, arr1d):
+        # GH#23524
+        arr = arr1d
+        dti = self.index_cls(arr1d)
+
+        expected = np.array(list(dti))
+
+        result = np.array(arr, dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+        # also test the DatetimeIndex method while we're at it
+        result = np.array(dti, dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_array_tz(self, arr1d):
+        # GH#23524
+        arr = arr1d
+        dti = self.index_cls(arr1d)
+        copy_false = None if np_version_gt2 else False
+
+        expected = dti.asi8.view("M8[ns]")
+        result = np.array(arr, dtype="M8[ns]")
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = np.array(arr, dtype="datetime64[ns]")
+        tm.assert_numpy_array_equal(result, expected)
+
+        # check that we are not making copies when setting copy=copy_false
+        result = np.array(arr, dtype="M8[ns]", copy=copy_false)
+        assert result.base is expected.base
+        assert result.base is not None
+        result = np.array(arr, dtype="datetime64[ns]", copy=copy_false)
+        assert result.base is expected.base
+        assert result.base is not None
+
+    def test_array_i8_dtype(self, arr1d):
+        arr = arr1d
+        dti = self.index_cls(arr1d)
+        copy_false = None if np_version_gt2 else False
+
+        expected = dti.asi8
+        result = np.array(arr, dtype="i8")
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = np.array(arr, dtype=np.int64)
+        tm.assert_numpy_array_equal(result, expected)
+
+        # check that we are still making copies when setting copy=copy_false
+        result = np.array(arr, dtype="i8", copy=copy_false)
+        assert result.base is not expected.base
+        assert result.base is None
+
+    def test_from_array_keeps_base(self):
+        # Ensure that DatetimeArray._ndarray.base isn't lost.
+        arr = np.array(["2000-01-01", "2000-01-02"], dtype="M8[ns]")
+        dta = DatetimeArray._from_sequence(arr)
+
+        assert dta._ndarray is arr
+        dta = DatetimeArray._from_sequence(arr[:0])
+        assert dta._ndarray.base is arr
+
+    def test_from_dti(self, arr1d):
+        arr = arr1d
+        dti = self.index_cls(arr1d)
+        assert list(dti) == list(arr)
+
+        # Check that Index.__new__ knows what to do with DatetimeArray
+        dti2 = pd.Index(arr)
+        assert isinstance(dti2, DatetimeIndex)
+        assert list(dti2) == list(arr)
+
+    def test_astype_object(self, arr1d):
+        arr = arr1d
+        dti = self.index_cls(arr1d)
+
+        asobj = arr.astype("O")
+        assert isinstance(asobj, np.ndarray)
+        assert asobj.dtype == "O"
+        assert list(asobj) == list(dti)
+
+    @pytest.mark.filterwarnings(r"ignore:PeriodDtype\[B\] is deprecated:FutureWarning")
+    def test_to_period(self, datetime_index, freqstr):
+        dti = datetime_index
+        arr = dti._data
+
+        freqstr = freq_to_period_freqstr(1, freqstr)
+        expected = dti.to_period(freq=freqstr)
+        result = arr.to_period(freq=freqstr)
+        assert isinstance(result, PeriodArray)
+
+        tm.assert_equal(result, expected._data)
+
+    def test_to_period_2d(self, arr1d):
+        arr2d = arr1d.reshape(1, -1)
+
+        warn = None if arr1d.tz is None else UserWarning
+        with tm.assert_produces_warning(warn):
+            result = arr2d.to_period("D")
+            expected = arr1d.to_period("D").reshape(1, -1)
+        tm.assert_period_array_equal(result, expected)
+
+    @pytest.mark.parametrize("propname", DatetimeArray._bool_ops)
+    def test_bool_properties(self, arr1d, propname):
+        # in this case _bool_ops is just `is_leap_year`
+        dti = self.index_cls(arr1d)
+        arr = arr1d
+        assert dti.freq == arr.freq
+
+        result = getattr(arr, propname)
+        expected = np.array(getattr(dti, propname), dtype=result.dtype)
+
+        tm.assert_numpy_array_equal(result, expected)
+
+    @pytest.mark.parametrize("propname", DatetimeArray._field_ops)
+    def test_int_properties(self, arr1d, propname):
+        dti = self.index_cls(arr1d)
+        arr = arr1d
+
+        result = getattr(arr, propname)
+        expected = np.array(getattr(dti, propname), dtype=result.dtype)
+
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_take_fill_valid(self, arr1d, fixed_now_ts):
+        arr = arr1d
+        dti = self.index_cls(arr1d)
+
+        now = fixed_now_ts.tz_localize(dti.tz)
+        result = arr.take([-1, 1], allow_fill=True, fill_value=now)
+        assert result[0] == now
+
+        msg = f"value should be a '{arr1d._scalar_type.__name__}' or 'NaT'. Got"
+        with pytest.raises(TypeError, match=msg):
+            # fill_value Timedelta invalid
+            arr.take([-1, 1], allow_fill=True, fill_value=now - now)
+
+        with pytest.raises(TypeError, match=msg):
+            # fill_value Period invalid
+            arr.take([-1, 1], allow_fill=True, fill_value=Period("2014Q1"))
+
+        tz = None if dti.tz is not None else "US/Eastern"
+        now = fixed_now_ts.tz_localize(tz)
+        msg = "Cannot compare tz-naive and tz-aware datetime-like objects"
+        with pytest.raises(TypeError, match=msg):
+            # Timestamp with mismatched tz-awareness
+            arr.take([-1, 1], allow_fill=True, fill_value=now)
+
+        value = NaT._value
+        msg = f"value should be a '{arr1d._scalar_type.__name__}' or 'NaT'. Got"
+        with pytest.raises(TypeError, match=msg):
+            # require NaT, not iNaT, as it could be confused with an integer
+            arr.take([-1, 1], allow_fill=True, fill_value=value)
+
+        value = np.timedelta64("NaT", "ns")
+        with pytest.raises(TypeError, match=msg):
+            # require appropriate-dtype if we have a NA value
+            arr.take([-1, 1], allow_fill=True, fill_value=value)
+
+        if arr.tz is not None:
+            # GH#37356
+            # Assuming here that arr1d fixture does not include Australia/Melbourne
+            value = fixed_now_ts.tz_localize("Australia/Melbourne")
+            result = arr.take([-1, 1], allow_fill=True, fill_value=value)
+
+            expected = arr.take(
+                [-1, 1],
+                allow_fill=True,
+                fill_value=value.tz_convert(arr.dtype.tz),
+            )
+            tm.assert_equal(result, expected)
+
+    def test_concat_same_type_invalid(self, arr1d):
+        # different timezones
+        arr = arr1d
+
+        if arr.tz is None:
+            other = arr.tz_localize("UTC")
+        else:
+            other = arr.tz_localize(None)
+
+        with pytest.raises(ValueError, match="to_concat must have the same"):
+            arr._concat_same_type([arr, other])
+
+    def test_concat_same_type_different_freq(self, unit):
+        # we *can* concatenate DTI with different freqs.
+        a = pd.date_range("2000", periods=2, freq="D", tz="US/Central", unit=unit)._data
+        b = pd.date_range("2000", periods=2, freq="h", tz="US/Central", unit=unit)._data
+        result = DatetimeArray._concat_same_type([a, b])
+        expected = (
+            pd.to_datetime(
+                [
+                    "2000-01-01 00:00:00",
+                    "2000-01-02 00:00:00",
+                    "2000-01-01 00:00:00",
+                    "2000-01-01 01:00:00",
+                ]
+            )
+            .tz_localize("US/Central")
+            .as_unit(unit)
+            ._data
+        )
+
+        tm.assert_datetime_array_equal(result, expected)
+
+    def test_strftime(self, arr1d):
+        arr = arr1d
+
+        result = arr.strftime("%Y %b")
+        expected = np.array([ts.strftime("%Y %b") for ts in arr], dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_strftime_nat(self):
+        # GH 29578
+        arr = DatetimeIndex(["2019-01-01", NaT])._data
+
+        result = arr.strftime("%Y-%m-%d")
+        expected = np.array(["2019-01-01", np.nan], dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+
+class TestTimedeltaArray(SharedTests):
+    index_cls = TimedeltaIndex
+    array_cls = TimedeltaArray
+    scalar_type = pd.Timedelta
+    example_dtype = "m8[ns]"
+
+    def test_from_tdi(self):
+        tdi = TimedeltaIndex(["1 Day", "3 Hours"])
+        arr = tdi._data
+        assert list(arr) == list(tdi)
+
+        # Check that Index.__new__ knows what to do with TimedeltaArray
+        tdi2 = pd.Index(arr)
+        assert isinstance(tdi2, TimedeltaIndex)
+        assert list(tdi2) == list(arr)
+
+    def test_astype_object(self):
+        tdi = TimedeltaIndex(["1 Day", "3 Hours"])
+        arr = tdi._data
+        asobj = arr.astype("O")
+        assert isinstance(asobj, np.ndarray)
+        assert asobj.dtype == "O"
+        assert list(asobj) == list(tdi)
+
+    def test_to_pytimedelta(self, timedelta_index):
+        tdi = timedelta_index
+        arr = tdi._data
+
+        expected = tdi.to_pytimedelta()
+        result = arr.to_pytimedelta()
+
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_total_seconds(self, timedelta_index):
+        tdi = timedelta_index
+        arr = tdi._data
+
+        expected = tdi.total_seconds()
+        result = arr.total_seconds()
+
+        tm.assert_numpy_array_equal(result, expected.values)
+
+    @pytest.mark.parametrize("propname", TimedeltaArray._field_ops)
+    def test_int_properties(self, timedelta_index, propname):
+        tdi = timedelta_index
+        arr = tdi._data
+
+        result = getattr(arr, propname)
+        expected = np.array(getattr(tdi, propname), dtype=result.dtype)
+
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_array_interface(self, timedelta_index):
+        arr = timedelta_index._data
+        copy_false = None if np_version_gt2 else False
+
+        # default asarray gives the same underlying data
+        result = np.asarray(arr)
+        expected = arr._ndarray
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+        result = np.array(arr, copy=copy_false)
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+
+        # specifying m8[ns] gives the same result as default
+        result = np.asarray(arr, dtype="timedelta64[ns]")
+        expected = arr._ndarray
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+        result = np.array(arr, dtype="timedelta64[ns]", copy=copy_false)
+        assert result is expected
+        tm.assert_numpy_array_equal(result, expected)
+        result = np.array(arr, dtype="timedelta64[ns]")
+        if not np_version_gt2:
+            # TODO: GH 57739
+            assert result is not expected
+        tm.assert_numpy_array_equal(result, expected)
+
+        # to object dtype
+        result = np.asarray(arr, dtype=object)
+        expected = np.array(list(arr), dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+        # to other dtype always copies
+        result = np.asarray(arr, dtype="int64")
+        assert result is not arr.asi8
+        assert not np.may_share_memory(arr, result)
+        expected = arr.asi8.copy()
+        tm.assert_numpy_array_equal(result, expected)
+
+        # other dtypes handled by numpy
+        for dtype in ["float64", str]:
+            result = np.asarray(arr, dtype=dtype)
+            expected = np.asarray(arr).astype(dtype)
+            tm.assert_numpy_array_equal(result, expected)
+
+    def test_take_fill_valid(self, timedelta_index, fixed_now_ts):
+        tdi = timedelta_index
+        arr = tdi._data
+
+        td1 = pd.Timedelta(days=1)
+        result = arr.take([-1, 1], allow_fill=True, fill_value=td1)
+        assert result[0] == td1
+
+        value = fixed_now_ts
+        msg = f"value should be a '{arr._scalar_type.__name__}' or 'NaT'. Got"
+        with pytest.raises(TypeError, match=msg):
+            # fill_value Timestamp invalid
+            arr.take([0, 1], allow_fill=True, fill_value=value)
+
+        value = fixed_now_ts.to_period("D")
+        with pytest.raises(TypeError, match=msg):
+            # fill_value Period invalid
+            arr.take([0, 1], allow_fill=True, fill_value=value)
+
+        value = np.datetime64("NaT", "ns")
+        with pytest.raises(TypeError, match=msg):
+            # require appropriate-dtype if we have a NA value
+            arr.take([-1, 1], allow_fill=True, fill_value=value)
+
+
+@pytest.mark.filterwarnings(r"ignore:Period with BDay freq is deprecated:FutureWarning")
+@pytest.mark.filterwarnings(r"ignore:PeriodDtype\[B\] is deprecated:FutureWarning")
+class TestPeriodArray(SharedTests):
+    index_cls = PeriodIndex
+    array_cls = PeriodArray
+    scalar_type = Period
+    example_dtype = PeriodIndex([], freq="W").dtype
+
+    @pytest.fixture
+    def arr1d(self, period_index):
+        """
+        Fixture returning DatetimeArray from parametrized PeriodIndex objects
+        """
+        return period_index._data
+
+    def test_from_pi(self, arr1d):
+        pi = self.index_cls(arr1d)
+        arr = arr1d
+        assert list(arr) == list(pi)
+
+        # Check that Index.__new__ knows what to do with PeriodArray
+        pi2 = pd.Index(arr)
+        assert isinstance(pi2, PeriodIndex)
+        assert list(pi2) == list(arr)
+
+    def test_astype_object(self, arr1d):
+        pi = self.index_cls(arr1d)
+        arr = arr1d
+        asobj = arr.astype("O")
+        assert isinstance(asobj, np.ndarray)
+        assert asobj.dtype == "O"
+        assert list(asobj) == list(pi)
+
+    def test_take_fill_valid(self, arr1d):
+        arr = arr1d
+
+        value = NaT._value
+        msg = f"value should be a '{arr1d._scalar_type.__name__}' or 'NaT'. Got"
+        with pytest.raises(TypeError, match=msg):
+            # require NaT, not iNaT, as it could be confused with an integer
+            arr.take([-1, 1], allow_fill=True, fill_value=value)
+
+        value = np.timedelta64("NaT", "ns")
+        with pytest.raises(TypeError, match=msg):
+            # require appropriate-dtype if we have a NA value
+            arr.take([-1, 1], allow_fill=True, fill_value=value)
+
+    @pytest.mark.parametrize("how", ["S", "E"])
+    def test_to_timestamp(self, how, arr1d):
+        pi = self.index_cls(arr1d)
+        arr = arr1d
+
+        expected = DatetimeIndex(pi.to_timestamp(how=how))._data
+        result = arr.to_timestamp(how=how)
+        assert isinstance(result, DatetimeArray)
+
+        tm.assert_equal(result, expected)
+
+    def test_to_timestamp_roundtrip_bday(self):
+        # Case where infer_freq inside would choose "D" instead of "B"
+        dta = pd.date_range("2021-10-18", periods=3, freq="B")._data
+        parr = dta.to_period()
+        result = parr.to_timestamp()
+        assert result.freq == "B"
+        tm.assert_extension_array_equal(result, dta)
+
+        dta2 = dta[::2]
+        parr2 = dta2.to_period()
+        result2 = parr2.to_timestamp()
+        assert result2.freq == "2B"
+        tm.assert_extension_array_equal(result2, dta2)
+
+        parr3 = dta.to_period("2B")
+        result3 = parr3.to_timestamp()
+        assert result3.freq == "B"
+        tm.assert_extension_array_equal(result3, dta)
+
+    def test_to_timestamp_out_of_bounds(self):
+        # GH#19643 previously overflowed silently
+        pi = pd.period_range("1500", freq="Y", periods=3)
+        msg = "Out of bounds nanosecond timestamp: 1500-01-01 00:00:00"
+        with pytest.raises(OutOfBoundsDatetime, match=msg):
+            pi.to_timestamp()
+
+        with pytest.raises(OutOfBoundsDatetime, match=msg):
+            pi._data.to_timestamp()
+
+    @pytest.mark.parametrize("propname", PeriodArray._bool_ops)
+    def test_bool_properties(self, arr1d, propname):
+        # in this case _bool_ops is just `is_leap_year`
+        pi = self.index_cls(arr1d)
+        arr = arr1d
+
+        result = getattr(arr, propname)
+        expected = np.array(getattr(pi, propname))
+
+        tm.assert_numpy_array_equal(result, expected)
+
+    @pytest.mark.parametrize("propname", PeriodArray._field_ops)
+    def test_int_properties(self, arr1d, propname):
+        pi = self.index_cls(arr1d)
+        arr = arr1d
+
+        result = getattr(arr, propname)
+        expected = np.array(getattr(pi, propname))
+
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_array_interface(self, arr1d):
+        arr = arr1d
+
+        # default asarray gives objects
+        result = np.asarray(arr)
+        expected = np.array(list(arr), dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+        # to object dtype (same as default)
+        result = np.asarray(arr, dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = np.asarray(arr, dtype="int64")
+        tm.assert_numpy_array_equal(result, arr.asi8)
+
+        # to other dtypes
+        msg = r"float\(\) argument must be a string or a( real)? number, not 'Period'"
+        with pytest.raises(TypeError, match=msg):
+            np.asarray(arr, dtype="float64")
+
+        result = np.asarray(arr, dtype="S20")
+        expected = np.asarray(arr).astype("S20")
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_strftime(self, arr1d):
+        arr = arr1d
+
+        result = arr.strftime("%Y")
+        expected = np.array([per.strftime("%Y") for per in arr], dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_strftime_nat(self):
+        # GH 29578
+        arr = PeriodArray(PeriodIndex(["2019-01-01", NaT], dtype="period[D]"))
+
+        result = arr.strftime("%Y-%m-%d")
+        expected = np.array(["2019-01-01", np.nan], dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+    "arr,casting_nats",
+    [
+        (
+            TimedeltaIndex(["1 Day", "3 Hours", "NaT"])._data,
+            (NaT, np.timedelta64("NaT", "ns")),
+        ),
+        (
+            pd.date_range("2000-01-01", periods=3, freq="D")._data,
+            (NaT, np.datetime64("NaT", "ns")),
+        ),
+        (pd.period_range("2000-01-01", periods=3, freq="D")._data, (NaT,)),
+    ],
+    ids=lambda x: type(x).__name__,
+)
+def test_casting_nat_setitem_array(arr, casting_nats):
+    expected = type(arr)._from_sequence([NaT, arr[1], arr[2]], dtype=arr.dtype)
+
+    for nat in casting_nats:
+        arr = arr.copy()
+        arr[0] = nat
+        tm.assert_equal(arr, expected)
+
+
+@pytest.mark.parametrize(
+    "arr,non_casting_nats",
+    [
+        (
+            TimedeltaIndex(["1 Day", "3 Hours", "NaT"])._data,
+            (np.datetime64("NaT", "ns"), NaT._value),
+        ),
+        (
+            pd.date_range("2000-01-01", periods=3, freq="D")._data,
+            (np.timedelta64("NaT", "ns"), NaT._value),
+        ),
+        (
+            pd.period_range("2000-01-01", periods=3, freq="D")._data,
+            (np.datetime64("NaT", "ns"), np.timedelta64("NaT", "ns"), NaT._value),
+        ),
+    ],
+    ids=lambda x: type(x).__name__,
+)
+def test_invalid_nat_setitem_array(arr, non_casting_nats):
+    msg = (
+        "value should be a '(Timestamp|Timedelta|Period)', 'NaT', or array of those. "
+        "Got '(timedelta64|datetime64|int)' instead."
+    )
+
+    for nat in non_casting_nats:
+        with pytest.raises(TypeError, match=msg):
+            arr[0] = nat
+
+
+@pytest.mark.parametrize(
+    "arr",
+    [
+        pd.date_range("2000", periods=4).array,
+        pd.timedelta_range("2000", periods=4).array,
+    ],
+)
+def test_to_numpy_extra(arr):
+    arr[0] = NaT
+    original = arr.copy()
+
+    result = arr.to_numpy()
+    assert np.isnan(result[0])
+
+    result = arr.to_numpy(dtype="int64")
+    assert result[0] == -9223372036854775808
+
+    result = arr.to_numpy(dtype="int64", na_value=0)
+    assert result[0] == 0
+
+    result = arr.to_numpy(na_value=arr[1].to_numpy())
+    assert result[0] == result[1]
+
+    result = arr.to_numpy(na_value=arr[1].to_numpy(copy=False))
+    assert result[0] == result[1]
+
+    tm.assert_equal(arr, original)
+
+
+@pytest.mark.parametrize("as_index", [True, False])
+@pytest.mark.parametrize(
+    "values",
+    [
+        pd.to_datetime(["2020-01-01", "2020-02-01"]),
+        pd.to_timedelta([1, 2], unit="D"),
+        PeriodIndex(["2020-01-01", "2020-02-01"], freq="D"),
+    ],
+)
+@pytest.mark.parametrize(
+    "klass",
+    [
+        list,
+        np.array,
+        pd.array,
+        pd.Series,
+        pd.Index,
+        pd.Categorical,
+        pd.CategoricalIndex,
+    ],
+)
+def test_searchsorted_datetimelike_with_listlike(values, klass, as_index):
+    # https://github.com/pandas-dev/pandas/issues/32762
+    if not as_index:
+        values = values._data
+
+    result = values.searchsorted(klass(values))
+    expected = np.array([0, 1], dtype=result.dtype)
+
+    tm.assert_numpy_array_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+    "values",
+    [
+        pd.to_datetime(["2020-01-01", "2020-02-01"]),
+        pd.to_timedelta([1, 2], unit="D"),
+        PeriodIndex(["2020-01-01", "2020-02-01"], freq="D"),
+    ],
+)
+@pytest.mark.parametrize(
+    "arg", [[1, 2], ["a", "b"], [Timestamp("2020-01-01", tz="Europe/London")] * 2]
+)
+def test_searchsorted_datetimelike_with_listlike_invalid_dtype(values, arg):
+    # https://github.com/pandas-dev/pandas/issues/32762
+    msg = "[Unexpected type|Cannot compare]"
+    with pytest.raises(TypeError, match=msg):
+        values.searchsorted(arg)
+
+
+@pytest.mark.parametrize("klass", [list, tuple, np.array, pd.Series])
+def test_period_index_construction_from_strings(klass):
+    # https://github.com/pandas-dev/pandas/issues/26109
+    strings = ["2020Q1", "2020Q2"] * 2
+    data = klass(strings)
+    result = PeriodIndex(data, freq="Q")
+    expected = PeriodIndex([Period(s) for s in strings])
+    tm.assert_index_equal(result, expected)
+
+
+@pytest.mark.parametrize("dtype", ["M8[ns]", "m8[ns]"])
+def test_from_pandas_array(dtype):
+    # GH#24615
+    data = np.array([1, 2, 3], dtype=dtype)
+    arr = NumpyExtensionArray(data)
+
+    cls = {"M8[ns]": DatetimeArray, "m8[ns]": TimedeltaArray}[dtype]
+
+    depr_msg = f"{cls.__name__}.__init__ is deprecated"
+    with tm.assert_produces_warning(FutureWarning, match=depr_msg):
+        result = cls(arr)
+        expected = cls(data)
+    tm.assert_extension_array_equal(result, expected)
+
+    result = cls._from_sequence(arr, dtype=dtype)
+    expected = cls._from_sequence(data, dtype=dtype)
+    tm.assert_extension_array_equal(result, expected)
+
+    func = {"M8[ns]": pd.to_datetime, "m8[ns]": pd.to_timedelta}[dtype]
+    result = func(arr).array
+    expected = func(data).array
+    tm.assert_equal(result, expected)
+
+    # Let's check the Indexes while we're here
+    idx_cls = {"M8[ns]": DatetimeIndex, "m8[ns]": TimedeltaIndex}[dtype]
+    result = idx_cls(arr)
+    expected = idx_cls(data)
+    tm.assert_index_equal(result, expected)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/test_datetimes.py

@@ -0,0 +1,840 @@
+"""
+Tests for DatetimeArray
+"""
+from __future__ import annotations
+
+from datetime import timedelta
+import operator
+
+try:
+    from zoneinfo import ZoneInfo
+except ImportError:
+    # Cannot assign to a type
+    ZoneInfo = None  # type: ignore[misc, assignment]
+
+import numpy as np
+import pytest
+
+from pandas._libs.tslibs import tz_compare
+
+from pandas.core.dtypes.dtypes import DatetimeTZDtype
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.core.arrays import (
+    DatetimeArray,
+    TimedeltaArray,
+)
+
+
+class TestNonNano:
+    @pytest.fixture(params=["s", "ms", "us"])
+    def unit(self, request):
+        """Fixture returning parametrized time units"""
+        return request.param
+
+    @pytest.fixture
+    def dtype(self, unit, tz_naive_fixture):
+        tz = tz_naive_fixture
+        if tz is None:
+            return np.dtype(f"datetime64[{unit}]")
+        else:
+            return DatetimeTZDtype(unit=unit, tz=tz)
+
+    @pytest.fixture
+    def dta_dti(self, unit, dtype):
+        tz = getattr(dtype, "tz", None)
+
+        dti = pd.date_range("2016-01-01", periods=55, freq="D", tz=tz)
+        if tz is None:
+            arr = np.asarray(dti).astype(f"M8[{unit}]")
+        else:
+            arr = np.asarray(dti.tz_convert("UTC").tz_localize(None)).astype(
+                f"M8[{unit}]"
+            )
+
+        dta = DatetimeArray._simple_new(arr, dtype=dtype)
+        return dta, dti
+
+    @pytest.fixture
+    def dta(self, dta_dti):
+        dta, dti = dta_dti
+        return dta
+
+    def test_non_nano(self, unit, dtype):
+        arr = np.arange(5, dtype=np.int64).view(f"M8[{unit}]")
+        dta = DatetimeArray._simple_new(arr, dtype=dtype)
+
+        assert dta.dtype == dtype
+        assert dta[0].unit == unit
+        assert tz_compare(dta.tz, dta[0].tz)
+        assert (dta[0] == dta[:1]).all()
+
+    @pytest.mark.parametrize(
+        "field", DatetimeArray._field_ops + DatetimeArray._bool_ops
+    )
+    def test_fields(self, unit, field, dtype, dta_dti):
+        dta, dti = dta_dti
+
+        assert (dti == dta).all()
+
+        res = getattr(dta, field)
+        expected = getattr(dti._data, field)
+        tm.assert_numpy_array_equal(res, expected)
+
+    def test_normalize(self, unit):
+        dti = pd.date_range("2016-01-01 06:00:00", periods=55, freq="D")
+        arr = np.asarray(dti).astype(f"M8[{unit}]")
+
+        dta = DatetimeArray._simple_new(arr, dtype=arr.dtype)
+
+        assert not dta.is_normalized
+
+        # TODO: simplify once we can just .astype to other unit
+        exp = np.asarray(dti.normalize()).astype(f"M8[{unit}]")
+        expected = DatetimeArray._simple_new(exp, dtype=exp.dtype)
+
+        res = dta.normalize()
+        tm.assert_extension_array_equal(res, expected)
+
+    def test_simple_new_requires_match(self, unit):
+        arr = np.arange(5, dtype=np.int64).view(f"M8[{unit}]")
+        dtype = DatetimeTZDtype(unit, "UTC")
+
+        dta = DatetimeArray._simple_new(arr, dtype=dtype)
+        assert dta.dtype == dtype
+
+        wrong = DatetimeTZDtype("ns", "UTC")
+        with pytest.raises(AssertionError, match=""):
+            DatetimeArray._simple_new(arr, dtype=wrong)
+
+    def test_std_non_nano(self, unit):
+        dti = pd.date_range("2016-01-01", periods=55, freq="D")
+        arr = np.asarray(dti).astype(f"M8[{unit}]")
+
+        dta = DatetimeArray._simple_new(arr, dtype=arr.dtype)
+
+        # we should match the nano-reso std, but floored to our reso.
+        res = dta.std()
+        assert res._creso == dta._creso
+        assert res == dti.std().floor(unit)
+
+    @pytest.mark.filterwarnings("ignore:Converting to PeriodArray.*:UserWarning")
+    def test_to_period(self, dta_dti):
+        dta, dti = dta_dti
+        result = dta.to_period("D")
+        expected = dti._data.to_period("D")
+
+        tm.assert_extension_array_equal(result, expected)
+
+    def test_iter(self, dta):
+        res = next(iter(dta))
+        expected = dta[0]
+
+        assert type(res) is pd.Timestamp
+        assert res._value == expected._value
+        assert res._creso == expected._creso
+        assert res == expected
+
+    def test_astype_object(self, dta):
+        result = dta.astype(object)
+        assert all(x._creso == dta._creso for x in result)
+        assert all(x == y for x, y in zip(result, dta))
+
+    def test_to_pydatetime(self, dta_dti):
+        dta, dti = dta_dti
+
+        result = dta.to_pydatetime()
+        expected = dti.to_pydatetime()
+        tm.assert_numpy_array_equal(result, expected)
+
+    @pytest.mark.parametrize("meth", ["time", "timetz", "date"])
+    def test_time_date(self, dta_dti, meth):
+        dta, dti = dta_dti
+
+        result = getattr(dta, meth)
+        expected = getattr(dti, meth)
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_format_native_types(self, unit, dtype, dta_dti):
+        # In this case we should get the same formatted values with our nano
+        #  version dti._data as we do with the non-nano dta
+        dta, dti = dta_dti
+
+        res = dta._format_native_types()
+        exp = dti._data._format_native_types()
+        tm.assert_numpy_array_equal(res, exp)
+
+    def test_repr(self, dta_dti, unit):
+        dta, dti = dta_dti
+
+        assert repr(dta) == repr(dti._data).replace("[ns", f"[{unit}")
+
+    # TODO: tests with td64
+    def test_compare_mismatched_resolutions(self, comparison_op):
+        # comparison that numpy gets wrong bc of silent overflows
+        op = comparison_op
+
+        iinfo = np.iinfo(np.int64)
+        vals = np.array([iinfo.min, iinfo.min + 1, iinfo.max], dtype=np.int64)
+
+        # Construct so that arr2[1] < arr[1] < arr[2] < arr2[2]
+        arr = np.array(vals).view("M8[ns]")
+        arr2 = arr.view("M8[s]")
+
+        left = DatetimeArray._simple_new(arr, dtype=arr.dtype)
+        right = DatetimeArray._simple_new(arr2, dtype=arr2.dtype)
+
+        if comparison_op is operator.eq:
+            expected = np.array([False, False, False])
+        elif comparison_op is operator.ne:
+            expected = np.array([True, True, True])
+        elif comparison_op in [operator.lt, operator.le]:
+            expected = np.array([False, False, True])
+        else:
+            expected = np.array([False, True, False])
+
+        result = op(left, right)
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = op(left[1], right)
+        tm.assert_numpy_array_equal(result, expected)
+
+        if op not in [operator.eq, operator.ne]:
+            # check that numpy still gets this wrong; if it is fixed we may be
+            #  able to remove compare_mismatched_resolutions
+            np_res = op(left._ndarray, right._ndarray)
+            tm.assert_numpy_array_equal(np_res[1:], ~expected[1:])
+
+    def test_add_mismatched_reso_doesnt_downcast(self):
+        # https://github.com/pandas-dev/pandas/pull/48748#issuecomment-1260181008
+        td = pd.Timedelta(microseconds=1)
+        dti = pd.date_range("2016-01-01", periods=3) - td
+        dta = dti._data.as_unit("us")
+
+        res = dta + td.as_unit("us")
+        # even though the result is an even number of days
+        #  (so we _could_ downcast to unit="s"), we do not.
+        assert res.unit == "us"
+
+    @pytest.mark.parametrize(
+        "scalar",
+        [
+            timedelta(hours=2),
+            pd.Timedelta(hours=2),
+            np.timedelta64(2, "h"),
+            np.timedelta64(2 * 3600 * 1000, "ms"),
+            pd.offsets.Minute(120),
+            pd.offsets.Hour(2),
+        ],
+    )
+    def test_add_timedeltalike_scalar_mismatched_reso(self, dta_dti, scalar):
+        dta, dti = dta_dti
+
+        td = pd.Timedelta(scalar)
+        exp_unit = tm.get_finest_unit(dta.unit, td.unit)
+
+        expected = (dti + td)._data.as_unit(exp_unit)
+        result = dta + scalar
+        tm.assert_extension_array_equal(result, expected)
+
+        result = scalar + dta
+        tm.assert_extension_array_equal(result, expected)
+
+        expected = (dti - td)._data.as_unit(exp_unit)
+        result = dta - scalar
+        tm.assert_extension_array_equal(result, expected)
+
+    def test_sub_datetimelike_scalar_mismatch(self):
+        dti = pd.date_range("2016-01-01", periods=3)
+        dta = dti._data.as_unit("us")
+
+        ts = dta[0].as_unit("s")
+
+        result = dta - ts
+        expected = (dti - dti[0])._data.as_unit("us")
+        assert result.dtype == "m8[us]"
+        tm.assert_extension_array_equal(result, expected)
+
+    def test_sub_datetime64_reso_mismatch(self):
+        dti = pd.date_range("2016-01-01", periods=3)
+        left = dti._data.as_unit("s")
+        right = left.as_unit("ms")
+
+        result = left - right
+        exp_values = np.array([0, 0, 0], dtype="m8[ms]")
+        expected = TimedeltaArray._simple_new(
+            exp_values,
+            dtype=exp_values.dtype,
+        )
+        tm.assert_extension_array_equal(result, expected)
+        result2 = right - left
+        tm.assert_extension_array_equal(result2, expected)
+
+
+class TestDatetimeArrayComparisons:
+    # TODO: merge this into tests/arithmetic/test_datetime64 once it is
+    #  sufficiently robust
+
+    def test_cmp_dt64_arraylike_tznaive(self, comparison_op):
+        # arbitrary tz-naive DatetimeIndex
+        op = comparison_op
+
+        dti = pd.date_range("2016-01-1", freq="MS", periods=9, tz=None)
+        arr = dti._data
+        assert arr.freq == dti.freq
+        assert arr.tz == dti.tz
+
+        right = dti
+
+        expected = np.ones(len(arr), dtype=bool)
+        if comparison_op.__name__ in ["ne", "gt", "lt"]:
+            # for these the comparisons should be all-False
+            expected = ~expected
+
+        result = op(arr, arr)
+        tm.assert_numpy_array_equal(result, expected)
+        for other in [
+            right,
+            np.array(right),
+            list(right),
+            tuple(right),
+            right.astype(object),
+        ]:
+            result = op(arr, other)
+            tm.assert_numpy_array_equal(result, expected)
+
+            result = op(other, arr)
+            tm.assert_numpy_array_equal(result, expected)
+
+
+class TestDatetimeArray:
+    def test_astype_ns_to_ms_near_bounds(self):
+        # GH#55979
+        ts = pd.Timestamp("1677-09-21 00:12:43.145225")
+        target = ts.as_unit("ms")
+
+        dta = DatetimeArray._from_sequence([ts], dtype="M8[ns]")
+        assert (dta.view("i8") == ts.as_unit("ns").value).all()
+
+        result = dta.astype("M8[ms]")
+        assert result[0] == target
+
+        expected = DatetimeArray._from_sequence([ts], dtype="M8[ms]")
+        assert (expected.view("i8") == target._value).all()
+
+        tm.assert_datetime_array_equal(result, expected)
+
+    def test_astype_non_nano_tznaive(self):
+        dti = pd.date_range("2016-01-01", periods=3)
+
+        res = dti.astype("M8[s]")
+        assert res.dtype == "M8[s]"
+
+        dta = dti._data
+        res = dta.astype("M8[s]")
+        assert res.dtype == "M8[s]"
+        assert isinstance(res, pd.core.arrays.DatetimeArray)  # used to be ndarray
+
+    def test_astype_non_nano_tzaware(self):
+        dti = pd.date_range("2016-01-01", periods=3, tz="UTC")
+
+        res = dti.astype("M8[s, US/Pacific]")
+        assert res.dtype == "M8[s, US/Pacific]"
+
+        dta = dti._data
+        res = dta.astype("M8[s, US/Pacific]")
+        assert res.dtype == "M8[s, US/Pacific]"
+
+        # from non-nano to non-nano, preserving reso
+        res2 = res.astype("M8[s, UTC]")
+        assert res2.dtype == "M8[s, UTC]"
+        assert not tm.shares_memory(res2, res)
+
+        res3 = res.astype("M8[s, UTC]", copy=False)
+        assert res2.dtype == "M8[s, UTC]"
+        assert tm.shares_memory(res3, res)
+
+    def test_astype_to_same(self):
+        arr = DatetimeArray._from_sequence(
+            ["2000"], dtype=DatetimeTZDtype(tz="US/Central")
+        )
+        result = arr.astype(DatetimeTZDtype(tz="US/Central"), copy=False)
+        assert result is arr
+
+    @pytest.mark.parametrize("dtype", ["datetime64[ns]", "datetime64[ns, UTC]"])
+    @pytest.mark.parametrize(
+        "other", ["datetime64[ns]", "datetime64[ns, UTC]", "datetime64[ns, CET]"]
+    )
+    def test_astype_copies(self, dtype, other):
+        # https://github.com/pandas-dev/pandas/pull/32490
+        ser = pd.Series([1, 2], dtype=dtype)
+        orig = ser.copy()
+
+        err = False
+        if (dtype == "datetime64[ns]") ^ (other == "datetime64[ns]"):
+            # deprecated in favor of tz_localize
+            err = True
+
+        if err:
+            if dtype == "datetime64[ns]":
+                msg = "Use obj.tz_localize instead or series.dt.tz_localize instead"
+            else:
+                msg = "from timezone-aware dtype to timezone-naive dtype"
+            with pytest.raises(TypeError, match=msg):
+                ser.astype(other)
+        else:
+            t = ser.astype(other)
+            t[:] = pd.NaT
+            tm.assert_series_equal(ser, orig)
+
+    @pytest.mark.parametrize("dtype", [int, np.int32, np.int64, "uint32", "uint64"])
+    def test_astype_int(self, dtype):
+        arr = DatetimeArray._from_sequence(
+            [pd.Timestamp("2000"), pd.Timestamp("2001")], dtype="M8[ns]"
+        )
+
+        if np.dtype(dtype) != np.int64:
+            with pytest.raises(TypeError, match=r"Do obj.astype\('int64'\)"):
+                arr.astype(dtype)
+            return
+
+        result = arr.astype(dtype)
+        expected = arr._ndarray.view("i8")
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_astype_to_sparse_dt64(self):
+        # GH#50082
+        dti = pd.date_range("2016-01-01", periods=4)
+        dta = dti._data
+        result = dta.astype("Sparse[datetime64[ns]]")
+
+        assert result.dtype == "Sparse[datetime64[ns]]"
+        assert (result == dta).all()
+
+    def test_tz_setter_raises(self):
+        arr = DatetimeArray._from_sequence(
+            ["2000"], dtype=DatetimeTZDtype(tz="US/Central")
+        )
+        with pytest.raises(AttributeError, match="tz_localize"):
+            arr.tz = "UTC"
+
+    def test_setitem_str_impute_tz(self, tz_naive_fixture):
+        # Like for getitem, if we are passed a naive-like string, we impute
+        #  our own timezone.
+        tz = tz_naive_fixture
+
+        data = np.array([1, 2, 3], dtype="M8[ns]")
+        dtype = data.dtype if tz is None else DatetimeTZDtype(tz=tz)
+        arr = DatetimeArray._from_sequence(data, dtype=dtype)
+        expected = arr.copy()
+
+        ts = pd.Timestamp("2020-09-08 16:50").tz_localize(tz)
+        setter = str(ts.tz_localize(None))
+
+        # Setting a scalar tznaive string
+        expected[0] = ts
+        arr[0] = setter
+        tm.assert_equal(arr, expected)
+
+        # Setting a listlike of tznaive strings
+        expected[1] = ts
+        arr[:2] = [setter, setter]
+        tm.assert_equal(arr, expected)
+
+    def test_setitem_different_tz_raises(self):
+        # pre-2.0 we required exact tz match, in 2.0 we require only
+        #  tzawareness-match
+        data = np.array([1, 2, 3], dtype="M8[ns]")
+        arr = DatetimeArray._from_sequence(
+            data, copy=False, dtype=DatetimeTZDtype(tz="US/Central")
+        )
+        with pytest.raises(TypeError, match="Cannot compare tz-naive and tz-aware"):
+            arr[0] = pd.Timestamp("2000")
+
+        ts = pd.Timestamp("2000", tz="US/Eastern")
+        arr[0] = ts
+        assert arr[0] == ts.tz_convert("US/Central")
+
+    def test_setitem_clears_freq(self):
+        a = pd.date_range("2000", periods=2, freq="D", tz="US/Central")._data
+        a[0] = pd.Timestamp("2000", tz="US/Central")
+        assert a.freq is None
+
+    @pytest.mark.parametrize(
+        "obj",
+        [
+            pd.Timestamp("2021-01-01"),
+            pd.Timestamp("2021-01-01").to_datetime64(),
+            pd.Timestamp("2021-01-01").to_pydatetime(),
+        ],
+    )
+    def test_setitem_objects(self, obj):
+        # make sure we accept datetime64 and datetime in addition to Timestamp
+        dti = pd.date_range("2000", periods=2, freq="D")
+        arr = dti._data
+
+        arr[0] = obj
+        assert arr[0] == obj
+
+    def test_repeat_preserves_tz(self):
+        dti = pd.date_range("2000", periods=2, freq="D", tz="US/Central")
+        arr = dti._data
+
+        repeated = arr.repeat([1, 1])
+
+        # preserves tz and values, but not freq
+        expected = DatetimeArray._from_sequence(arr.asi8, dtype=arr.dtype)
+        tm.assert_equal(repeated, expected)
+
+    def test_value_counts_preserves_tz(self):
+        dti = pd.date_range("2000", periods=2, freq="D", tz="US/Central")
+        arr = dti._data.repeat([4, 3])
+
+        result = arr.value_counts()
+
+        # Note: not tm.assert_index_equal, since `freq`s do not match
+        assert result.index.equals(dti)
+
+        arr[-2] = pd.NaT
+        result = arr.value_counts(dropna=False)
+        expected = pd.Series([4, 2, 1], index=[dti[0], dti[1], pd.NaT], name="count")
+        tm.assert_series_equal(result, expected)
+
+    @pytest.mark.parametrize("method", ["pad", "backfill"])
+    def test_fillna_preserves_tz(self, method):
+        dti = pd.date_range("2000-01-01", periods=5, freq="D", tz="US/Central")
+        arr = DatetimeArray._from_sequence(dti, copy=True)
+        arr[2] = pd.NaT
+
+        fill_val = dti[1] if method == "pad" else dti[3]
+        expected = DatetimeArray._from_sequence(
+            [dti[0], dti[1], fill_val, dti[3], dti[4]],
+            dtype=DatetimeTZDtype(tz="US/Central"),
+        )
+
+        result = arr._pad_or_backfill(method=method)
+        tm.assert_extension_array_equal(result, expected)
+
+        # assert that arr and dti were not modified in-place
+        assert arr[2] is pd.NaT
+        assert dti[2] == pd.Timestamp("2000-01-03", tz="US/Central")
+
+    def test_fillna_2d(self):
+        dti = pd.date_range("2016-01-01", periods=6, tz="US/Pacific")
+        dta = dti._data.reshape(3, 2).copy()
+        dta[0, 1] = pd.NaT
+        dta[1, 0] = pd.NaT
+
+        res1 = dta._pad_or_backfill(method="pad")
+        expected1 = dta.copy()
+        expected1[1, 0] = dta[0, 0]
+        tm.assert_extension_array_equal(res1, expected1)
+
+        res2 = dta._pad_or_backfill(method="backfill")
+        expected2 = dta.copy()
+        expected2 = dta.copy()
+        expected2[1, 0] = dta[2, 0]
+        expected2[0, 1] = dta[1, 1]
+        tm.assert_extension_array_equal(res2, expected2)
+
+        # with different ordering for underlying ndarray; behavior should
+        #  be unchanged
+        dta2 = dta._from_backing_data(dta._ndarray.copy(order="F"))
+        assert dta2._ndarray.flags["F_CONTIGUOUS"]
+        assert not dta2._ndarray.flags["C_CONTIGUOUS"]
+        tm.assert_extension_array_equal(dta, dta2)
+
+        res3 = dta2._pad_or_backfill(method="pad")
+        tm.assert_extension_array_equal(res3, expected1)
+
+        res4 = dta2._pad_or_backfill(method="backfill")
+        tm.assert_extension_array_equal(res4, expected2)
+
+        # test the DataFrame method while we're here
+        df = pd.DataFrame(dta)
+        res = df.ffill()
+        expected = pd.DataFrame(expected1)
+        tm.assert_frame_equal(res, expected)
+
+        res = df.bfill()
+        expected = pd.DataFrame(expected2)
+        tm.assert_frame_equal(res, expected)
+
+    def test_array_interface_tz(self):
+        tz = "US/Central"
+        data = pd.date_range("2017", periods=2, tz=tz)._data
+        result = np.asarray(data)
+
+        expected = np.array(
+            [
+                pd.Timestamp("2017-01-01T00:00:00", tz=tz),
+                pd.Timestamp("2017-01-02T00:00:00", tz=tz),
+            ],
+            dtype=object,
+        )
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = np.asarray(data, dtype=object)
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = np.asarray(data, dtype="M8[ns]")
+
+        expected = np.array(
+            ["2017-01-01T06:00:00", "2017-01-02T06:00:00"], dtype="M8[ns]"
+        )
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_array_interface(self):
+        data = pd.date_range("2017", periods=2)._data
+        expected = np.array(
+            ["2017-01-01T00:00:00", "2017-01-02T00:00:00"], dtype="datetime64[ns]"
+        )
+
+        result = np.asarray(data)
+        tm.assert_numpy_array_equal(result, expected)
+
+        result = np.asarray(data, dtype=object)
+        expected = np.array(
+            [pd.Timestamp("2017-01-01T00:00:00"), pd.Timestamp("2017-01-02T00:00:00")],
+            dtype=object,
+        )
+        tm.assert_numpy_array_equal(result, expected)
+
+    @pytest.mark.parametrize("index", [True, False])
+    def test_searchsorted_different_tz(self, index):
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        arr = pd.DatetimeIndex(data, freq="D")._data.tz_localize("Asia/Tokyo")
+        if index:
+            arr = pd.Index(arr)
+
+        expected = arr.searchsorted(arr[2])
+        result = arr.searchsorted(arr[2].tz_convert("UTC"))
+        assert result == expected
+
+        expected = arr.searchsorted(arr[2:6])
+        result = arr.searchsorted(arr[2:6].tz_convert("UTC"))
+        tm.assert_equal(result, expected)
+
+    @pytest.mark.parametrize("index", [True, False])
+    def test_searchsorted_tzawareness_compat(self, index):
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        arr = pd.DatetimeIndex(data, freq="D")._data
+        if index:
+            arr = pd.Index(arr)
+
+        mismatch = arr.tz_localize("Asia/Tokyo")
+
+        msg = "Cannot compare tz-naive and tz-aware datetime-like objects"
+        with pytest.raises(TypeError, match=msg):
+            arr.searchsorted(mismatch[0])
+        with pytest.raises(TypeError, match=msg):
+            arr.searchsorted(mismatch)
+
+        with pytest.raises(TypeError, match=msg):
+            mismatch.searchsorted(arr[0])
+        with pytest.raises(TypeError, match=msg):
+            mismatch.searchsorted(arr)
+
+    @pytest.mark.parametrize(
+        "other",
+        [
+            1,
+            np.int64(1),
+            1.0,
+            np.timedelta64("NaT"),
+            pd.Timedelta(days=2),
+            "invalid",
+            np.arange(10, dtype="i8") * 24 * 3600 * 10**9,
+            np.arange(10).view("timedelta64[ns]") * 24 * 3600 * 10**9,
+            pd.Timestamp("2021-01-01").to_period("D"),
+        ],
+    )
+    @pytest.mark.parametrize("index", [True, False])
+    def test_searchsorted_invalid_types(self, other, index):
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        arr = pd.DatetimeIndex(data, freq="D")._data
+        if index:
+            arr = pd.Index(arr)
+
+        msg = "|".join(
+            [
+                "searchsorted requires compatible dtype or scalar",
+                "value should be a 'Timestamp', 'NaT', or array of those. Got",
+            ]
+        )
+        with pytest.raises(TypeError, match=msg):
+            arr.searchsorted(other)
+
+    def test_shift_fill_value(self):
+        dti = pd.date_range("2016-01-01", periods=3)
+
+        dta = dti._data
+        expected = DatetimeArray._from_sequence(np.roll(dta._ndarray, 1))
+
+        fv = dta[-1]
+        for fill_value in [fv, fv.to_pydatetime(), fv.to_datetime64()]:
+            result = dta.shift(1, fill_value=fill_value)
+            tm.assert_datetime_array_equal(result, expected)
+
+        dta = dta.tz_localize("UTC")
+        expected = expected.tz_localize("UTC")
+        fv = dta[-1]
+        for fill_value in [fv, fv.to_pydatetime()]:
+            result = dta.shift(1, fill_value=fill_value)
+            tm.assert_datetime_array_equal(result, expected)
+
+    def test_shift_value_tzawareness_mismatch(self):
+        dti = pd.date_range("2016-01-01", periods=3)
+
+        dta = dti._data
+
+        fv = dta[-1].tz_localize("UTC")
+        for invalid in [fv, fv.to_pydatetime()]:
+            with pytest.raises(TypeError, match="Cannot compare"):
+                dta.shift(1, fill_value=invalid)
+
+        dta = dta.tz_localize("UTC")
+        fv = dta[-1].tz_localize(None)
+        for invalid in [fv, fv.to_pydatetime(), fv.to_datetime64()]:
+            with pytest.raises(TypeError, match="Cannot compare"):
+                dta.shift(1, fill_value=invalid)
+
+    def test_shift_requires_tzmatch(self):
+        # pre-2.0 we required exact tz match, in 2.0 we require just
+        #  matching tzawareness
+        dti = pd.date_range("2016-01-01", periods=3, tz="UTC")
+        dta = dti._data
+
+        fill_value = pd.Timestamp("2020-10-18 18:44", tz="US/Pacific")
+
+        result = dta.shift(1, fill_value=fill_value)
+        expected = dta.shift(1, fill_value=fill_value.tz_convert("UTC"))
+        tm.assert_equal(result, expected)
+
+    def test_tz_localize_t2d(self):
+        dti = pd.date_range("1994-05-12", periods=12, tz="US/Pacific")
+        dta = dti._data.reshape(3, 4)
+        result = dta.tz_localize(None)
+
+        expected = dta.ravel().tz_localize(None).reshape(dta.shape)
+        tm.assert_datetime_array_equal(result, expected)
+
+        roundtrip = expected.tz_localize("US/Pacific")
+        tm.assert_datetime_array_equal(roundtrip, dta)
+
+    easts = ["US/Eastern", "dateutil/US/Eastern"]
+    if ZoneInfo is not None:
+        try:
+            tz = ZoneInfo("US/Eastern")
+        except KeyError:
+            # no tzdata
+            pass
+        else:
+            # Argument 1 to "append" of "list" has incompatible type "ZoneInfo";
+            # expected "str"
+            easts.append(tz)  # type: ignore[arg-type]
+
+    @pytest.mark.parametrize("tz", easts)
+    def test_iter_zoneinfo_fold(self, tz):
+        # GH#49684
+        utc_vals = np.array(
+            [1320552000, 1320555600, 1320559200, 1320562800], dtype=np.int64
+        )
+        utc_vals *= 1_000_000_000
+
+        dta = DatetimeArray._from_sequence(utc_vals).tz_localize("UTC").tz_convert(tz)
+
+        left = dta[2]
+        right = list(dta)[2]
+        assert str(left) == str(right)
+        # previously there was a bug where with non-pytz right would be
+        #  Timestamp('2011-11-06 01:00:00-0400', tz='US/Eastern')
+        # while left would be
+        #  Timestamp('2011-11-06 01:00:00-0500', tz='US/Eastern')
+        # The .value's would match (so they would compare as equal),
+        #  but the folds would not
+        assert left.utcoffset() == right.utcoffset()
+
+        # The same bug in ints_to_pydatetime affected .astype, so we test
+        #  that here.
+        right2 = dta.astype(object)[2]
+        assert str(left) == str(right2)
+        assert left.utcoffset() == right2.utcoffset()
+
+    @pytest.mark.parametrize(
+        "freq, freq_depr",
+        [
+            ("2ME", "2M"),
+            ("2SME", "2SM"),
+            ("2SME", "2sm"),
+            ("2QE", "2Q"),
+            ("2QE-SEP", "2Q-SEP"),
+            ("1YE", "1Y"),
+            ("2YE-MAR", "2Y-MAR"),
+            ("1YE", "1A"),
+            ("2YE-MAR", "2A-MAR"),
+            ("2ME", "2m"),
+            ("2QE-SEP", "2q-sep"),
+            ("2YE-MAR", "2a-mar"),
+            ("2YE", "2y"),
+        ],
+    )
+    def test_date_range_frequency_M_Q_Y_A_deprecated(self, freq, freq_depr):
+        # GH#9586, GH#54275
+        depr_msg = f"'{freq_depr[1:]}' is deprecated and will be removed "
+        f"in a future version, please use '{freq[1:]}' instead."
+
+        expected = pd.date_range("1/1/2000", periods=4, freq=freq)
+        with tm.assert_produces_warning(FutureWarning, match=depr_msg):
+            result = pd.date_range("1/1/2000", periods=4, freq=freq_depr)
+        tm.assert_index_equal(result, expected)
+
+    @pytest.mark.parametrize("freq_depr", ["2H", "2CBH", "2MIN", "2S", "2mS", "2Us"])
+    def test_date_range_uppercase_frequency_deprecated(self, freq_depr):
+        # GH#9586, GH#54939
+        depr_msg = f"'{freq_depr[1:]}' is deprecated and will be removed in a "
+        f"future version. Please use '{freq_depr.lower()[1:]}' instead."
+
+        expected = pd.date_range("1/1/2000", periods=4, freq=freq_depr.lower())
+        with tm.assert_produces_warning(FutureWarning, match=depr_msg):
+            result = pd.date_range("1/1/2000", periods=4, freq=freq_depr)
+        tm.assert_index_equal(result, expected)
+
+    @pytest.mark.parametrize(
+        "freq_depr",
+        [
+            "2ye-mar",
+            "2ys",
+            "2qe",
+            "2qs-feb",
+            "2bqs",
+            "2sms",
+            "2bms",
+            "2cbme",
+            "2me",
+            "2w",
+        ],
+    )
+    def test_date_range_lowercase_frequency_deprecated(self, freq_depr):
+        # GH#9586, GH#54939
+        depr_msg = f"'{freq_depr[1:]}' is deprecated and will be removed in a "
+        f"future version, please use '{freq_depr.upper()[1:]}' instead."
+
+        expected = pd.date_range("1/1/2000", periods=4, freq=freq_depr.upper())
+        with tm.assert_produces_warning(FutureWarning, match=depr_msg):
+            result = pd.date_range("1/1/2000", periods=4, freq=freq_depr)
+        tm.assert_index_equal(result, expected)
+
+
+def test_factorize_sort_without_freq():
+    dta = DatetimeArray._from_sequence([0, 2, 1], dtype="M8[ns]")
+
+    msg = r"call pd.factorize\(obj, sort=True\) instead"
+    with pytest.raises(NotImplementedError, match=msg):
+        dta.factorize(sort=True)
+
+    # Do TimedeltaArray while we're here
+    tda = dta - dta[0]
+    with pytest.raises(NotImplementedError, match=msg):
+        tda.factorize(sort=True)

vllm/lib/python3.10/site-packages/pandas/tests/arrays/test_ndarray_backed.py

@@ -0,0 +1,75 @@
+"""
+Tests for subclasses of NDArrayBackedExtensionArray
+"""
+import numpy as np
+
+from pandas import (
+    CategoricalIndex,
+    date_range,
+)
+from pandas.core.arrays import (
+    Categorical,
+    DatetimeArray,
+    NumpyExtensionArray,
+    TimedeltaArray,
+)
+
+
+class TestEmpty:
+    def test_empty_categorical(self):
+        ci = CategoricalIndex(["a", "b", "c"], ordered=True)
+        dtype = ci.dtype
+
+        # case with int8 codes
+        shape = (4,)
+        result = Categorical._empty(shape, dtype=dtype)
+        assert isinstance(result, Categorical)
+        assert result.shape == shape
+        assert result._ndarray.dtype == np.int8
+
+        # case where repr would segfault if we didn't override base implementation
+        result = Categorical._empty((4096,), dtype=dtype)
+        assert isinstance(result, Categorical)
+        assert result.shape == (4096,)
+        assert result._ndarray.dtype == np.int8
+        repr(result)
+
+        # case with int16 codes
+        ci = CategoricalIndex(list(range(512)) * 4, ordered=False)
+        dtype = ci.dtype
+        result = Categorical._empty(shape, dtype=dtype)
+        assert isinstance(result, Categorical)
+        assert result.shape == shape
+        assert result._ndarray.dtype == np.int16
+
+    def test_empty_dt64tz(self):
+        dti = date_range("2016-01-01", periods=2, tz="Asia/Tokyo")
+        dtype = dti.dtype
+
+        shape = (0,)
+        result = DatetimeArray._empty(shape, dtype=dtype)
+        assert result.dtype == dtype
+        assert isinstance(result, DatetimeArray)
+        assert result.shape == shape
+
+    def test_empty_dt64(self):
+        shape = (3, 9)
+        result = DatetimeArray._empty(shape, dtype="datetime64[ns]")
+        assert isinstance(result, DatetimeArray)
+        assert result.shape == shape
+
+    def test_empty_td64(self):
+        shape = (3, 9)
+        result = TimedeltaArray._empty(shape, dtype="m8[ns]")
+        assert isinstance(result, TimedeltaArray)
+        assert result.shape == shape
+
+    def test_empty_pandas_array(self):
+        arr = NumpyExtensionArray(np.array([1, 2]))
+        dtype = arr.dtype
+
+        shape = (3, 9)
+        result = NumpyExtensionArray._empty(shape, dtype=dtype)
+        assert isinstance(result, NumpyExtensionArray)
+        assert result.dtype == dtype
+        assert result.shape == shape

vllm/lib/python3.10/site-packages/pandas/tests/arrays/test_period.py

@@ -0,0 +1,184 @@
+import numpy as np
+import pytest
+
+from pandas._libs.tslibs import iNaT
+from pandas._libs.tslibs.period import IncompatibleFrequency
+
+from pandas.core.dtypes.base import _registry as registry
+from pandas.core.dtypes.dtypes import PeriodDtype
+
+import pandas as pd
+import pandas._testing as tm
+from pandas.core.arrays import PeriodArray
+
+# ----------------------------------------------------------------------------
+# Dtype
+
+
+def test_registered():
+    assert PeriodDtype in registry.dtypes
+    result = registry.find("Period[D]")
+    expected = PeriodDtype("D")
+    assert result == expected
+
+
+# ----------------------------------------------------------------------------
+# period_array
+
+
+def test_asi8():
+    result = PeriodArray._from_sequence(["2000", "2001", None], dtype="period[D]").asi8
+    expected = np.array([10957, 11323, iNaT])
+    tm.assert_numpy_array_equal(result, expected)
+
+
+def test_take_raises():
+    arr = PeriodArray._from_sequence(["2000", "2001"], dtype="period[D]")
+    with pytest.raises(IncompatibleFrequency, match="freq"):
+        arr.take([0, -1], allow_fill=True, fill_value=pd.Period("2000", freq="W"))
+
+    msg = "value should be a 'Period' or 'NaT'. Got 'str' instead"
+    with pytest.raises(TypeError, match=msg):
+        arr.take([0, -1], allow_fill=True, fill_value="foo")
+
+
+def test_fillna_raises():
+    arr = PeriodArray._from_sequence(["2000", "2001", "2002"], dtype="period[D]")
+    with pytest.raises(ValueError, match="Length"):
+        arr.fillna(arr[:2])
+
+
+def test_fillna_copies():
+    arr = PeriodArray._from_sequence(["2000", "2001", "2002"], dtype="period[D]")
+    result = arr.fillna(pd.Period("2000", "D"))
+    assert result is not arr
+
+
+# ----------------------------------------------------------------------------
+# setitem
+
+
+@pytest.mark.parametrize(
+    "key, value, expected",
+    [
+        ([0], pd.Period("2000", "D"), [10957, 1, 2]),
+        ([0], None, [iNaT, 1, 2]),
+        ([0], np.nan, [iNaT, 1, 2]),
+        ([0, 1, 2], pd.Period("2000", "D"), [10957] * 3),
+        (
+            [0, 1, 2],
+            [pd.Period("2000", "D"), pd.Period("2001", "D"), pd.Period("2002", "D")],
+            [10957, 11323, 11688],
+        ),
+    ],
+)
+def test_setitem(key, value, expected):
+    arr = PeriodArray(np.arange(3), dtype="period[D]")
+    expected = PeriodArray(expected, dtype="period[D]")
+    arr[key] = value
+    tm.assert_period_array_equal(arr, expected)
+
+
+def test_setitem_raises_incompatible_freq():
+    arr = PeriodArray(np.arange(3), dtype="period[D]")
+    with pytest.raises(IncompatibleFrequency, match="freq"):
+        arr[0] = pd.Period("2000", freq="Y")
+
+    other = PeriodArray._from_sequence(["2000", "2001"], dtype="period[Y]")
+    with pytest.raises(IncompatibleFrequency, match="freq"):
+        arr[[0, 1]] = other
+
+
+def test_setitem_raises_length():
+    arr = PeriodArray(np.arange(3), dtype="period[D]")
+    with pytest.raises(ValueError, match="length"):
+        arr[[0, 1]] = [pd.Period("2000", freq="D")]
+
+
+def test_setitem_raises_type():
+    arr = PeriodArray(np.arange(3), dtype="period[D]")
+    with pytest.raises(TypeError, match="int"):
+        arr[0] = 1
+
+
+# ----------------------------------------------------------------------------
+# Ops
+
+
+def test_sub_period():
+    arr = PeriodArray._from_sequence(["2000", "2001"], dtype="period[D]")
+    other = pd.Period("2000", freq="M")
+    with pytest.raises(IncompatibleFrequency, match="freq"):
+        arr - other
+
+
+def test_sub_period_overflow():
+    # GH#47538
+    dti = pd.date_range("1677-09-22", periods=2, freq="D")
+    pi = dti.to_period("ns")
+
+    per = pd.Period._from_ordinal(10**14, pi.freq)
+
+    with pytest.raises(OverflowError, match="Overflow in int64 addition"):
+        pi - per
+
+    with pytest.raises(OverflowError, match="Overflow in int64 addition"):
+        per - pi
+
+
+# ----------------------------------------------------------------------------
+# Methods
+
+
+@pytest.mark.parametrize(
+    "other",
+    [
+        pd.Period("2000", freq="h"),
+        PeriodArray._from_sequence(["2000", "2001", "2000"], dtype="period[h]"),
+    ],
+)
+def test_where_different_freq_raises(other):
+    # GH#45768 The PeriodArray method raises, the Series method coerces
+    ser = pd.Series(
+        PeriodArray._from_sequence(["2000", "2001", "2002"], dtype="period[D]")
+    )
+    cond = np.array([True, False, True])
+
+    with pytest.raises(IncompatibleFrequency, match="freq"):
+        ser.array._where(cond, other)
+
+    res = ser.where(cond, other)
+    expected = ser.astype(object).where(cond, other)
+    tm.assert_series_equal(res, expected)
+
+
+# ----------------------------------------------------------------------------
+# Printing
+
+
+def test_repr_small():
+    arr = PeriodArray._from_sequence(["2000", "2001"], dtype="period[D]")
+    result = str(arr)
+    expected = (
+        "<PeriodArray>\n['2000-01-01', '2001-01-01']\nLength: 2, dtype: period[D]"
+    )
+    assert result == expected
+
+
+def test_repr_large():
+    arr = PeriodArray._from_sequence(["2000", "2001"] * 500, dtype="period[D]")
+    result = str(arr)
+    expected = (
+        "<PeriodArray>\n"
+        "['2000-01-01', '2001-01-01', '2000-01-01', '2001-01-01', "
+        "'2000-01-01',\n"
+        " '2001-01-01', '2000-01-01', '2001-01-01', '2000-01-01', "
+        "'2001-01-01',\n"
+        " ...\n"
+        " '2000-01-01', '2001-01-01', '2000-01-01', '2001-01-01', "
+        "'2000-01-01',\n"
+        " '2001-01-01', '2000-01-01', '2001-01-01', '2000-01-01', "
+        "'2001-01-01']\n"
+        "Length: 1000, dtype: period[D]"
+    )
+    assert result == expected

vllm/lib/python3.10/site-packages/pandas/tests/arrays/test_timedeltas.py

@@ -0,0 +1,313 @@
+from datetime import timedelta
+
+import numpy as np
+import pytest
+
+import pandas as pd
+from pandas import Timedelta
+import pandas._testing as tm
+from pandas.core.arrays import (
+    DatetimeArray,
+    TimedeltaArray,
+)
+
+
+class TestNonNano:
+    @pytest.fixture(params=["s", "ms", "us"])
+    def unit(self, request):
+        return request.param
+
+    @pytest.fixture
+    def tda(self, unit):
+        arr = np.arange(5, dtype=np.int64).view(f"m8[{unit}]")
+        return TimedeltaArray._simple_new(arr, dtype=arr.dtype)
+
+    def test_non_nano(self, unit):
+        arr = np.arange(5, dtype=np.int64).view(f"m8[{unit}]")
+        tda = TimedeltaArray._simple_new(arr, dtype=arr.dtype)
+
+        assert tda.dtype == arr.dtype
+        assert tda[0].unit == unit
+
+    def test_as_unit_raises(self, tda):
+        # GH#50616
+        with pytest.raises(ValueError, match="Supported units"):
+            tda.as_unit("D")
+
+        tdi = pd.Index(tda)
+        with pytest.raises(ValueError, match="Supported units"):
+            tdi.as_unit("D")
+
+    @pytest.mark.parametrize("field", TimedeltaArray._field_ops)
+    def test_fields(self, tda, field):
+        as_nano = tda._ndarray.astype("m8[ns]")
+        tda_nano = TimedeltaArray._simple_new(as_nano, dtype=as_nano.dtype)
+
+        result = getattr(tda, field)
+        expected = getattr(tda_nano, field)
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_to_pytimedelta(self, tda):
+        as_nano = tda._ndarray.astype("m8[ns]")
+        tda_nano = TimedeltaArray._simple_new(as_nano, dtype=as_nano.dtype)
+
+        result = tda.to_pytimedelta()
+        expected = tda_nano.to_pytimedelta()
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_total_seconds(self, unit, tda):
+        as_nano = tda._ndarray.astype("m8[ns]")
+        tda_nano = TimedeltaArray._simple_new(as_nano, dtype=as_nano.dtype)
+
+        result = tda.total_seconds()
+        expected = tda_nano.total_seconds()
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_timedelta_array_total_seconds(self):
+        # GH34290
+        expected = Timedelta("2 min").total_seconds()
+
+        result = pd.array([Timedelta("2 min")]).total_seconds()[0]
+        assert result == expected
+
+    def test_total_seconds_nanoseconds(self):
+        # issue #48521
+        start_time = pd.Series(["2145-11-02 06:00:00"]).astype("datetime64[ns]")
+        end_time = pd.Series(["2145-11-02 07:06:00"]).astype("datetime64[ns]")
+        expected = (end_time - start_time).values / np.timedelta64(1, "s")
+        result = (end_time - start_time).dt.total_seconds().values
+        assert result == expected
+
+    @pytest.mark.parametrize(
+        "nat", [np.datetime64("NaT", "ns"), np.datetime64("NaT", "us")]
+    )
+    def test_add_nat_datetimelike_scalar(self, nat, tda):
+        result = tda + nat
+        assert isinstance(result, DatetimeArray)
+        assert result._creso == tda._creso
+        assert result.isna().all()
+
+        result = nat + tda
+        assert isinstance(result, DatetimeArray)
+        assert result._creso == tda._creso
+        assert result.isna().all()
+
+    def test_add_pdnat(self, tda):
+        result = tda + pd.NaT
+        assert isinstance(result, TimedeltaArray)
+        assert result._creso == tda._creso
+        assert result.isna().all()
+
+        result = pd.NaT + tda
+        assert isinstance(result, TimedeltaArray)
+        assert result._creso == tda._creso
+        assert result.isna().all()
+
+    # TODO: 2022-07-11 this is the only test that gets to DTA.tz_convert
+    #  or tz_localize with non-nano; implement tests specific to that.
+    def test_add_datetimelike_scalar(self, tda, tz_naive_fixture):
+        ts = pd.Timestamp("2016-01-01", tz=tz_naive_fixture).as_unit("ns")
+
+        expected = tda.as_unit("ns") + ts
+        res = tda + ts
+        tm.assert_extension_array_equal(res, expected)
+        res = ts + tda
+        tm.assert_extension_array_equal(res, expected)
+
+        ts += Timedelta(1)  # case where we can't cast losslessly
+
+        exp_values = tda._ndarray + ts.asm8
+        expected = (
+            DatetimeArray._simple_new(exp_values, dtype=exp_values.dtype)
+            .tz_localize("UTC")
+            .tz_convert(ts.tz)
+        )
+
+        result = tda + ts
+        tm.assert_extension_array_equal(result, expected)
+
+        result = ts + tda
+        tm.assert_extension_array_equal(result, expected)
+
+    def test_mul_scalar(self, tda):
+        other = 2
+        result = tda * other
+        expected = TimedeltaArray._simple_new(tda._ndarray * other, dtype=tda.dtype)
+        tm.assert_extension_array_equal(result, expected)
+        assert result._creso == tda._creso
+
+    def test_mul_listlike(self, tda):
+        other = np.arange(len(tda))
+        result = tda * other
+        expected = TimedeltaArray._simple_new(tda._ndarray * other, dtype=tda.dtype)
+        tm.assert_extension_array_equal(result, expected)
+        assert result._creso == tda._creso
+
+    def test_mul_listlike_object(self, tda):
+        other = np.arange(len(tda))
+        result = tda * other.astype(object)
+        expected = TimedeltaArray._simple_new(tda._ndarray * other, dtype=tda.dtype)
+        tm.assert_extension_array_equal(result, expected)
+        assert result._creso == tda._creso
+
+    def test_div_numeric_scalar(self, tda):
+        other = 2
+        result = tda / other
+        expected = TimedeltaArray._simple_new(tda._ndarray / other, dtype=tda.dtype)
+        tm.assert_extension_array_equal(result, expected)
+        assert result._creso == tda._creso
+
+    def test_div_td_scalar(self, tda):
+        other = timedelta(seconds=1)
+        result = tda / other
+        expected = tda._ndarray / np.timedelta64(1, "s")
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_div_numeric_array(self, tda):
+        other = np.arange(len(tda))
+        result = tda / other
+        expected = TimedeltaArray._simple_new(tda._ndarray / other, dtype=tda.dtype)
+        tm.assert_extension_array_equal(result, expected)
+        assert result._creso == tda._creso
+
+    def test_div_td_array(self, tda):
+        other = tda._ndarray + tda._ndarray[-1]
+        result = tda / other
+        expected = tda._ndarray / other
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_add_timedeltaarraylike(self, tda):
+        tda_nano = tda.astype("m8[ns]")
+
+        expected = tda_nano * 2
+        res = tda_nano + tda
+        tm.assert_extension_array_equal(res, expected)
+        res = tda + tda_nano
+        tm.assert_extension_array_equal(res, expected)
+
+        expected = tda_nano * 0
+        res = tda - tda_nano
+        tm.assert_extension_array_equal(res, expected)
+
+        res = tda_nano - tda
+        tm.assert_extension_array_equal(res, expected)
+
+
+class TestTimedeltaArray:
+    @pytest.mark.parametrize("dtype", [int, np.int32, np.int64, "uint32", "uint64"])
+    def test_astype_int(self, dtype):
+        arr = TimedeltaArray._from_sequence(
+            [Timedelta("1h"), Timedelta("2h")], dtype="m8[ns]"
+        )
+
+        if np.dtype(dtype) != np.int64:
+            with pytest.raises(TypeError, match=r"Do obj.astype\('int64'\)"):
+                arr.astype(dtype)
+            return
+
+        result = arr.astype(dtype)
+        expected = arr._ndarray.view("i8")
+        tm.assert_numpy_array_equal(result, expected)
+
+    def test_setitem_clears_freq(self):
+        a = pd.timedelta_range("1h", periods=2, freq="h")._data
+        a[0] = Timedelta("1h")
+        assert a.freq is None
+
+    @pytest.mark.parametrize(
+        "obj",
+        [
+            Timedelta(seconds=1),
+            Timedelta(seconds=1).to_timedelta64(),
+            Timedelta(seconds=1).to_pytimedelta(),
+        ],
+    )
+    def test_setitem_objects(self, obj):
+        # make sure we accept timedelta64 and timedelta in addition to Timedelta
+        tdi = pd.timedelta_range("2 Days", periods=4, freq="h")
+        arr = tdi._data
+
+        arr[0] = obj
+        assert arr[0] == Timedelta(seconds=1)
+
+    @pytest.mark.parametrize(
+        "other",
+        [
+            1,
+            np.int64(1),
+            1.0,
+            np.datetime64("NaT"),
+            pd.Timestamp("2021-01-01"),
+            "invalid",
+            np.arange(10, dtype="i8") * 24 * 3600 * 10**9,
+            (np.arange(10) * 24 * 3600 * 10**9).view("datetime64[ns]"),
+            pd.Timestamp("2021-01-01").to_period("D"),
+        ],
+    )
+    @pytest.mark.parametrize("index", [True, False])
+    def test_searchsorted_invalid_types(self, other, index):
+        data = np.arange(10, dtype="i8") * 24 * 3600 * 10**9
+        arr = pd.TimedeltaIndex(data, freq="D")._data
+        if index:
+            arr = pd.Index(arr)
+
+        msg = "|".join(
+            [
+                "searchsorted requires compatible dtype or scalar",
+                "value should be a 'Timedelta', 'NaT', or array of those. Got",
+            ]
+        )
+        with pytest.raises(TypeError, match=msg):
+            arr.searchsorted(other)
+
+
+class TestUnaryOps:
+    def test_abs(self):
+        vals = np.array([-3600 * 10**9, "NaT", 7200 * 10**9], dtype="m8[ns]")
+        arr = TimedeltaArray._from_sequence(vals)
+
+        evals = np.array([3600 * 10**9, "NaT", 7200 * 10**9], dtype="m8[ns]")
+        expected = TimedeltaArray._from_sequence(evals)
+
+        result = abs(arr)
+        tm.assert_timedelta_array_equal(result, expected)
+
+        result2 = np.abs(arr)
+        tm.assert_timedelta_array_equal(result2, expected)
+
+    def test_pos(self):
+        vals = np.array([-3600 * 10**9, "NaT", 7200 * 10**9], dtype="m8[ns]")
+        arr = TimedeltaArray._from_sequence(vals)
+
+        result = +arr
+        tm.assert_timedelta_array_equal(result, arr)
+        assert not tm.shares_memory(result, arr)
+
+        result2 = np.positive(arr)
+        tm.assert_timedelta_array_equal(result2, arr)
+        assert not tm.shares_memory(result2, arr)
+
+    def test_neg(self):
+        vals = np.array([-3600 * 10**9, "NaT", 7200 * 10**9], dtype="m8[ns]")
+        arr = TimedeltaArray._from_sequence(vals)
+
+        evals = np.array([3600 * 10**9, "NaT", -7200 * 10**9], dtype="m8[ns]")
+        expected = TimedeltaArray._from_sequence(evals)
+
+        result = -arr
+        tm.assert_timedelta_array_equal(result, expected)
+
+        result2 = np.negative(arr)
+        tm.assert_timedelta_array_equal(result2, expected)
+
+    def test_neg_freq(self):
+        tdi = pd.timedelta_range("2 Days", periods=4, freq="h")
+        arr = tdi._data
+
+        expected = -tdi._data
+
+        result = -arr
+        tm.assert_timedelta_array_equal(result, expected)
+
+        result2 = np.negative(arr)
+        tm.assert_timedelta_array_equal(result2, expected)

vllm/lib/python3.10/site-packages/pandas/tests/config/test_config.py

@@ -0,0 +1,437 @@
+import pytest
+
+from pandas._config import config as cf
+from pandas._config.config import OptionError
+
+import pandas as pd
+import pandas._testing as tm
+
+
+class TestConfig:
+    @pytest.fixture(autouse=True)
+    def clean_config(self, monkeypatch):
+        with monkeypatch.context() as m:
+            m.setattr(cf, "_global_config", {})
+            m.setattr(cf, "options", cf.DictWrapper(cf._global_config))
+            m.setattr(cf, "_deprecated_options", {})
+            m.setattr(cf, "_registered_options", {})
+
+            # Our test fixture in conftest.py sets "chained_assignment"
+            # to "raise" only after all test methods have been setup.
+            # However, after this setup, there is no longer any
+            # "chained_assignment" option, so re-register it.
+            cf.register_option("chained_assignment", "raise")
+            yield
+
+    def test_api(self):
+        # the pandas object exposes the user API
+        assert hasattr(pd, "get_option")
+        assert hasattr(pd, "set_option")
+        assert hasattr(pd, "reset_option")
+        assert hasattr(pd, "describe_option")
+
+    def test_is_one_of_factory(self):
+        v = cf.is_one_of_factory([None, 12])
+
+        v(12)
+        v(None)
+        msg = r"Value must be one of None\|12"
+        with pytest.raises(ValueError, match=msg):
+            v(1.1)
+
+    def test_register_option(self):
+        cf.register_option("a", 1, "doc")
+
+        # can't register an already registered option
+        msg = "Option 'a' has already been registered"
+        with pytest.raises(OptionError, match=msg):
+            cf.register_option("a", 1, "doc")
+
+        # can't register an already registered option
+        msg = "Path prefix to option 'a' is already an option"
+        with pytest.raises(OptionError, match=msg):
+            cf.register_option("a.b.c.d1", 1, "doc")
+        with pytest.raises(OptionError, match=msg):
+            cf.register_option("a.b.c.d2", 1, "doc")
+
+        # no python keywords
+        msg = "for is a python keyword"
+        with pytest.raises(ValueError, match=msg):
+            cf.register_option("for", 0)
+        with pytest.raises(ValueError, match=msg):
+            cf.register_option("a.for.b", 0)
+        # must be valid identifier (ensure attribute access works)
+        msg = "oh my goddess! is not a valid identifier"
+        with pytest.raises(ValueError, match=msg):
+            cf.register_option("Oh my Goddess!", 0)
+
+        # we can register options several levels deep
+        # without predefining the intermediate steps
+        # and we can define differently named options
+        # in the same namespace
+        cf.register_option("k.b.c.d1", 1, "doc")
+        cf.register_option("k.b.c.d2", 1, "doc")
+
+    def test_describe_option(self):
+        cf.register_option("a", 1, "doc")
+        cf.register_option("b", 1, "doc2")
+        cf.deprecate_option("b")
+
+        cf.register_option("c.d.e1", 1, "doc3")
+        cf.register_option("c.d.e2", 1, "doc4")
+        cf.register_option("f", 1)
+        cf.register_option("g.h", 1)
+        cf.register_option("k", 2)
+        cf.deprecate_option("g.h", rkey="k")
+        cf.register_option("l", "foo")
+
+        # non-existent keys raise KeyError
+        msg = r"No such keys\(s\)"
+        with pytest.raises(OptionError, match=msg):
+            cf.describe_option("no.such.key")
+
+        # we can get the description for any key we registered
+        assert "doc" in cf.describe_option("a", _print_desc=False)
+        assert "doc2" in cf.describe_option("b", _print_desc=False)
+        assert "precated" in cf.describe_option("b", _print_desc=False)
+        assert "doc3" in cf.describe_option("c.d.e1", _print_desc=False)
+        assert "doc4" in cf.describe_option("c.d.e2", _print_desc=False)
+
+        # if no doc is specified we get a default message
+        # saying "description not available"
+        assert "available" in cf.describe_option("f", _print_desc=False)
+        assert "available" in cf.describe_option("g.h", _print_desc=False)
+        assert "precated" in cf.describe_option("g.h", _print_desc=False)
+        assert "k" in cf.describe_option("g.h", _print_desc=False)
+
+        # default is reported
+        assert "foo" in cf.describe_option("l", _print_desc=False)
+        # current value is reported
+        assert "bar" not in cf.describe_option("l", _print_desc=False)
+        cf.set_option("l", "bar")
+        assert "bar" in cf.describe_option("l", _print_desc=False)
+
+    def test_case_insensitive(self):
+        cf.register_option("KanBAN", 1, "doc")
+
+        assert "doc" in cf.describe_option("kanbaN", _print_desc=False)
+        assert cf.get_option("kanBaN") == 1
+        cf.set_option("KanBan", 2)
+        assert cf.get_option("kAnBaN") == 2
+
+        # gets of non-existent keys fail
+        msg = r"No such keys\(s\): 'no_such_option'"
+        with pytest.raises(OptionError, match=msg):
+            cf.get_option("no_such_option")
+        cf.deprecate_option("KanBan")
+
+        assert cf._is_deprecated("kAnBaN")
+
+    def test_get_option(self):
+        cf.register_option("a", 1, "doc")
+        cf.register_option("b.c", "hullo", "doc2")
+        cf.register_option("b.b", None, "doc2")
+
+        # gets of existing keys succeed
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "hullo"
+        assert cf.get_option("b.b") is None
+
+        # gets of non-existent keys fail
+        msg = r"No such keys\(s\): 'no_such_option'"
+        with pytest.raises(OptionError, match=msg):
+            cf.get_option("no_such_option")
+
+    def test_set_option(self):
+        cf.register_option("a", 1, "doc")
+        cf.register_option("b.c", "hullo", "doc2")
+        cf.register_option("b.b", None, "doc2")
+
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "hullo"
+        assert cf.get_option("b.b") is None
+
+        cf.set_option("a", 2)
+        cf.set_option("b.c", "wurld")
+        cf.set_option("b.b", 1.1)
+
+        assert cf.get_option("a") == 2
+        assert cf.get_option("b.c") == "wurld"
+        assert cf.get_option("b.b") == 1.1
+
+        msg = r"No such keys\(s\): 'no.such.key'"
+        with pytest.raises(OptionError, match=msg):
+            cf.set_option("no.such.key", None)
+
+    def test_set_option_empty_args(self):
+        msg = "Must provide an even number of non-keyword arguments"
+        with pytest.raises(ValueError, match=msg):
+            cf.set_option()
+
+    def test_set_option_uneven_args(self):
+        msg = "Must provide an even number of non-keyword arguments"
+        with pytest.raises(ValueError, match=msg):
+            cf.set_option("a.b", 2, "b.c")
+
+    def test_set_option_invalid_single_argument_type(self):
+        msg = "Must provide an even number of non-keyword arguments"
+        with pytest.raises(ValueError, match=msg):
+            cf.set_option(2)
+
+    def test_set_option_multiple(self):
+        cf.register_option("a", 1, "doc")
+        cf.register_option("b.c", "hullo", "doc2")
+        cf.register_option("b.b", None, "doc2")
+
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "hullo"
+        assert cf.get_option("b.b") is None
+
+        cf.set_option("a", "2", "b.c", None, "b.b", 10.0)
+
+        assert cf.get_option("a") == "2"
+        assert cf.get_option("b.c") is None
+        assert cf.get_option("b.b") == 10.0
+
+    def test_validation(self):
+        cf.register_option("a", 1, "doc", validator=cf.is_int)
+        cf.register_option("d", 1, "doc", validator=cf.is_nonnegative_int)
+        cf.register_option("b.c", "hullo", "doc2", validator=cf.is_text)
+
+        msg = "Value must have type '<class 'int'>'"
+        with pytest.raises(ValueError, match=msg):
+            cf.register_option("a.b.c.d2", "NO", "doc", validator=cf.is_int)
+
+        cf.set_option("a", 2)  # int is_int
+        cf.set_option("b.c", "wurld")  # str is_str
+        cf.set_option("d", 2)
+        cf.set_option("d", None)  # non-negative int can be None
+
+        # None not is_int
+        with pytest.raises(ValueError, match=msg):
+            cf.set_option("a", None)
+        with pytest.raises(ValueError, match=msg):
+            cf.set_option("a", "ab")
+
+        msg = "Value must be a nonnegative integer or None"
+        with pytest.raises(ValueError, match=msg):
+            cf.register_option("a.b.c.d3", "NO", "doc", validator=cf.is_nonnegative_int)
+        with pytest.raises(ValueError, match=msg):
+            cf.register_option("a.b.c.d3", -2, "doc", validator=cf.is_nonnegative_int)
+
+        msg = r"Value must be an instance of <class 'str'>\|<class 'bytes'>"
+        with pytest.raises(ValueError, match=msg):
+            cf.set_option("b.c", 1)
+
+        validator = cf.is_one_of_factory([None, cf.is_callable])
+        cf.register_option("b", lambda: None, "doc", validator=validator)
+        # pylint: disable-next=consider-using-f-string
+        cf.set_option("b", "%.1f".format)  # Formatter is callable
+        cf.set_option("b", None)  # Formatter is none (default)
+        with pytest.raises(ValueError, match="Value must be a callable"):
+            cf.set_option("b", "%.1f")
+
+    def test_reset_option(self):
+        cf.register_option("a", 1, "doc", validator=cf.is_int)
+        cf.register_option("b.c", "hullo", "doc2", validator=cf.is_str)
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "hullo"
+
+        cf.set_option("a", 2)
+        cf.set_option("b.c", "wurld")
+        assert cf.get_option("a") == 2
+        assert cf.get_option("b.c") == "wurld"
+
+        cf.reset_option("a")
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "wurld"
+        cf.reset_option("b.c")
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "hullo"
+
+    def test_reset_option_all(self):
+        cf.register_option("a", 1, "doc", validator=cf.is_int)
+        cf.register_option("b.c", "hullo", "doc2", validator=cf.is_str)
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "hullo"
+
+        cf.set_option("a", 2)
+        cf.set_option("b.c", "wurld")
+        assert cf.get_option("a") == 2
+        assert cf.get_option("b.c") == "wurld"
+
+        cf.reset_option("all")
+        assert cf.get_option("a") == 1
+        assert cf.get_option("b.c") == "hullo"
+
+    def test_deprecate_option(self):
+        # we can deprecate non-existent options
+        cf.deprecate_option("foo")
+
+        assert cf._is_deprecated("foo")
+        with tm.assert_produces_warning(FutureWarning, match="deprecated"):
+            with pytest.raises(KeyError, match="No such keys.s.: 'foo'"):
+                cf.get_option("foo")
+
+        cf.register_option("a", 1, "doc", validator=cf.is_int)
+        cf.register_option("b.c", "hullo", "doc2")
+        cf.register_option("foo", "hullo", "doc2")
+
+        cf.deprecate_option("a", removal_ver="nifty_ver")
+        with tm.assert_produces_warning(FutureWarning, match="eprecated.*nifty_ver"):
+            cf.get_option("a")
+
+            msg = "Option 'a' has already been defined as deprecated"
+            with pytest.raises(OptionError, match=msg):
+                cf.deprecate_option("a")
+
+        cf.deprecate_option("b.c", "zounds!")
+        with tm.assert_produces_warning(FutureWarning, match="zounds!"):
+            cf.get_option("b.c")
+
+        # test rerouting keys
+        cf.register_option("d.a", "foo", "doc2")
+        cf.register_option("d.dep", "bar", "doc2")
+        assert cf.get_option("d.a") == "foo"
+        assert cf.get_option("d.dep") == "bar"
+
+        cf.deprecate_option("d.dep", rkey="d.a")  # reroute d.dep to d.a
+        with tm.assert_produces_warning(FutureWarning, match="eprecated"):
+            assert cf.get_option("d.dep") == "foo"
+
+        with tm.assert_produces_warning(FutureWarning, match="eprecated"):
+            cf.set_option("d.dep", "baz")  # should overwrite "d.a"
+
+        with tm.assert_produces_warning(FutureWarning, match="eprecated"):
+            assert cf.get_option("d.dep") == "baz"
+
+    def test_config_prefix(self):
+        with cf.config_prefix("base"):
+            cf.register_option("a", 1, "doc1")
+            cf.register_option("b", 2, "doc2")
+            assert cf.get_option("a") == 1
+            assert cf.get_option("b") == 2
+
+            cf.set_option("a", 3)
+            cf.set_option("b", 4)
+            assert cf.get_option("a") == 3
+            assert cf.get_option("b") == 4
+
+        assert cf.get_option("base.a") == 3
+        assert cf.get_option("base.b") == 4
+        assert "doc1" in cf.describe_option("base.a", _print_desc=False)
+        assert "doc2" in cf.describe_option("base.b", _print_desc=False)
+
+        cf.reset_option("base.a")
+        cf.reset_option("base.b")
+
+        with cf.config_prefix("base"):
+            assert cf.get_option("a") == 1
+            assert cf.get_option("b") == 2
+
+    def test_callback(self):
+        k = [None]
+        v = [None]
+
+        def callback(key):
+            k.append(key)
+            v.append(cf.get_option(key))
+
+        cf.register_option("d.a", "foo", cb=callback)
+        cf.register_option("d.b", "foo", cb=callback)
+
+        del k[-1], v[-1]
+        cf.set_option("d.a", "fooz")
+        assert k[-1] == "d.a"
+        assert v[-1] == "fooz"
+
+        del k[-1], v[-1]
+        cf.set_option("d.b", "boo")
+        assert k[-1] == "d.b"
+        assert v[-1] == "boo"
+
+        del k[-1], v[-1]
+        cf.reset_option("d.b")
+        assert k[-1] == "d.b"
+
+    def test_set_ContextManager(self):
+        def eq(val):
+            assert cf.get_option("a") == val
+
+        cf.register_option("a", 0)
+        eq(0)
+        with cf.option_context("a", 15):
+            eq(15)
+            with cf.option_context("a", 25):
+                eq(25)
+            eq(15)
+        eq(0)
+
+        cf.set_option("a", 17)
+        eq(17)
+
+        # Test that option_context can be used as a decorator too (#34253).
+        @cf.option_context("a", 123)
+        def f():
+            eq(123)
+
+        f()
+
+    def test_attribute_access(self):
+        holder = []
+
+        def f3(key):
+            holder.append(True)
+
+        cf.register_option("a", 0)
+        cf.register_option("c", 0, cb=f3)
+        options = cf.options
+
+        assert options.a == 0
+        with cf.option_context("a", 15):
+            assert options.a == 15
+
+        options.a = 500
+        assert cf.get_option("a") == 500
+
+        cf.reset_option("a")
+        assert options.a == cf.get_option("a", 0)
+
+        msg = "You can only set the value of existing options"
+        with pytest.raises(OptionError, match=msg):
+            options.b = 1
+        with pytest.raises(OptionError, match=msg):
+            options.display = 1
+
+        # make sure callback kicks when using this form of setting
+        options.c = 1
+        assert len(holder) == 1
+
+    def test_option_context_scope(self):
+        # Ensure that creating a context does not affect the existing
+        # environment as it is supposed to be used with the `with` statement.
+        # See https://github.com/pandas-dev/pandas/issues/8514
+
+        original_value = 60
+        context_value = 10
+        option_name = "a"
+
+        cf.register_option(option_name, original_value)
+
+        # Ensure creating contexts didn't affect the current context.
+        ctx = cf.option_context(option_name, context_value)
+        assert cf.get_option(option_name) == original_value
+
+        # Ensure the correct value is available inside the context.
+        with ctx:
+            assert cf.get_option(option_name) == context_value
+
+        # Ensure the current context is reset
+        assert cf.get_option(option_name) == original_value
+
+    def test_dictwrapper_getattr(self):
+        options = cf.options
+        # GH 19789
+        with pytest.raises(OptionError, match="No such option"):
+            options.bananas
+        assert not hasattr(options, "bananas")

vllm/lib/python3.10/site-packages/pandas/tests/config/test_localization.py

@@ -0,0 +1,156 @@
+import codecs
+import locale
+import os
+
+import pytest
+
+from pandas._config.localization import (
+    can_set_locale,
+    get_locales,
+    set_locale,
+)
+
+from pandas.compat import ISMUSL
+
+import pandas as pd
+
+_all_locales = get_locales()
+_current_locale = locale.setlocale(locale.LC_ALL)  # getlocale() is wrong, see GH#46595
+
+# Don't run any of these tests if we have no locales.
+pytestmark = pytest.mark.skipif(not _all_locales, reason="Need locales")
+
+_skip_if_only_one_locale = pytest.mark.skipif(
+    len(_all_locales) <= 1, reason="Need multiple locales for meaningful test"
+)
+
+
+def _get_current_locale(lc_var: int = locale.LC_ALL) -> str:
+    # getlocale is not always compliant with setlocale, use setlocale. GH#46595
+    return locale.setlocale(lc_var)
+
+
+@pytest.mark.parametrize("lc_var", (locale.LC_ALL, locale.LC_CTYPE, locale.LC_TIME))
+def test_can_set_current_locale(lc_var):
+    # Can set the current locale
+    before_locale = _get_current_locale(lc_var)
+    assert can_set_locale(before_locale, lc_var=lc_var)
+    after_locale = _get_current_locale(lc_var)
+    assert before_locale == after_locale
+
+
+@pytest.mark.parametrize("lc_var", (locale.LC_ALL, locale.LC_CTYPE, locale.LC_TIME))
+def test_can_set_locale_valid_set(lc_var):
+    # Can set the default locale.
+    before_locale = _get_current_locale(lc_var)
+    assert can_set_locale("", lc_var=lc_var)
+    after_locale = _get_current_locale(lc_var)
+    assert before_locale == after_locale
+
+
+@pytest.mark.parametrize(
+    "lc_var",
+    (
+        locale.LC_ALL,
+        locale.LC_CTYPE,
+        pytest.param(
+            locale.LC_TIME,
+            marks=pytest.mark.skipif(
+                ISMUSL, reason="MUSL allows setting invalid LC_TIME."
+            ),
+        ),
+    ),
+)
+def test_can_set_locale_invalid_set(lc_var):
+    # Cannot set an invalid locale.
+    before_locale = _get_current_locale(lc_var)
+    assert not can_set_locale("non-existent_locale", lc_var=lc_var)
+    after_locale = _get_current_locale(lc_var)
+    assert before_locale == after_locale
+
+
+@pytest.mark.parametrize(
+    "lang,enc",
+    [
+        ("it_CH", "UTF-8"),
+        ("en_US", "ascii"),
+        ("zh_CN", "GB2312"),
+        ("it_IT", "ISO-8859-1"),
+    ],
+)
+@pytest.mark.parametrize("lc_var", (locale.LC_ALL, locale.LC_CTYPE, locale.LC_TIME))
+def test_can_set_locale_no_leak(lang, enc, lc_var):
+    # Test that can_set_locale does not leak even when returning False. See GH#46595
+    before_locale = _get_current_locale(lc_var)
+    can_set_locale((lang, enc), locale.LC_ALL)
+    after_locale = _get_current_locale(lc_var)
+    assert before_locale == after_locale
+
+
+def test_can_set_locale_invalid_get(monkeypatch):
+    # see GH#22129
+    # In some cases, an invalid locale can be set,
+    #  but a subsequent getlocale() raises a ValueError.
+
+    def mock_get_locale():
+        raise ValueError()
+
+    with monkeypatch.context() as m:
+        m.setattr(locale, "getlocale", mock_get_locale)
+        assert not can_set_locale("")
+
+
+def test_get_locales_at_least_one():
+    # see GH#9744
+    assert len(_all_locales) > 0
+
+
+@_skip_if_only_one_locale
+def test_get_locales_prefix():
+    first_locale = _all_locales[0]
+    assert len(get_locales(prefix=first_locale[:2])) > 0
+
+
+@_skip_if_only_one_locale
+@pytest.mark.parametrize(
+    "lang,enc",
+    [
+        ("it_CH", "UTF-8"),
+        ("en_US", "ascii"),
+        ("zh_CN", "GB2312"),
+        ("it_IT", "ISO-8859-1"),
+    ],
+)
+def test_set_locale(lang, enc):
+    before_locale = _get_current_locale()
+
+    enc = codecs.lookup(enc).name
+    new_locale = lang, enc
+
+    if not can_set_locale(new_locale):
+        msg = "unsupported locale setting"
+
+        with pytest.raises(locale.Error, match=msg):
+            with set_locale(new_locale):
+                pass
+    else:
+        with set_locale(new_locale) as normalized_locale:
+            new_lang, new_enc = normalized_locale.split(".")
+            new_enc = codecs.lookup(enc).name
+
+            normalized_locale = new_lang, new_enc
+            assert normalized_locale == new_locale
+
+    # Once we exit the "with" statement, locale should be back to what it was.
+    after_locale = _get_current_locale()
+    assert before_locale == after_locale
+
+
+def test_encoding_detected():
+    system_locale = os.environ.get("LC_ALL")
+    system_encoding = system_locale.split(".")[-1] if system_locale else "utf-8"
+
+    assert (
+        codecs.lookup(pd.options.display.encoding).name
+        == codecs.lookup(system_encoding).name
+    )

vllm/lib/python3.10/site-packages/pandas/tests/copy_view/index/test_datetimeindex.py

@@ -0,0 +1,69 @@
+import pytest
+
+from pandas import (
+    DatetimeIndex,
+    Series,
+    Timestamp,
+    date_range,
+)
+import pandas._testing as tm
+
+pytestmark = pytest.mark.filterwarnings(
+    "ignore:Setting a value on a view:FutureWarning"
+)
+
+
+@pytest.mark.parametrize(
+    "cons",
+    [
+        lambda x: DatetimeIndex(x),
+        lambda x: DatetimeIndex(DatetimeIndex(x)),
+    ],
+)
+def test_datetimeindex(using_copy_on_write, cons):
+    dt = date_range("2019-12-31", periods=3, freq="D")
+    ser = Series(dt)
+    idx = cons(ser)
+    expected = idx.copy(deep=True)
+    ser.iloc[0] = Timestamp("2020-12-31")
+    if using_copy_on_write:
+        tm.assert_index_equal(idx, expected)
+
+
+def test_datetimeindex_tz_convert(using_copy_on_write):
+    dt = date_range("2019-12-31", periods=3, freq="D", tz="Europe/Berlin")
+    ser = Series(dt)
+    idx = DatetimeIndex(ser).tz_convert("US/Eastern")
+    expected = idx.copy(deep=True)
+    ser.iloc[0] = Timestamp("2020-12-31", tz="Europe/Berlin")
+    if using_copy_on_write:
+        tm.assert_index_equal(idx, expected)
+
+
+def test_datetimeindex_tz_localize(using_copy_on_write):
+    dt = date_range("2019-12-31", periods=3, freq="D")
+    ser = Series(dt)
+    idx = DatetimeIndex(ser).tz_localize("Europe/Berlin")
+    expected = idx.copy(deep=True)
+    ser.iloc[0] = Timestamp("2020-12-31")
+    if using_copy_on_write:
+        tm.assert_index_equal(idx, expected)
+
+
+def test_datetimeindex_isocalendar(using_copy_on_write):
+    dt = date_range("2019-12-31", periods=3, freq="D")
+    ser = Series(dt)
+    df = DatetimeIndex(ser).isocalendar()
+    expected = df.index.copy(deep=True)
+    ser.iloc[0] = Timestamp("2020-12-31")
+    if using_copy_on_write:
+        tm.assert_index_equal(df.index, expected)
+
+
+def test_index_values(using_copy_on_write):
+    idx = date_range("2019-12-31", periods=3, freq="D")
+    result = idx.values
+    if using_copy_on_write:
+        assert result.flags.writeable is False
+    else:
+        assert result.flags.writeable is True