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c13737d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | import os
import textwrap
import pyarrow as pa
import pytest
from datasets import ClassLabel, Features, Image
from datasets.packaged_modules.csv.csv import Csv
from ..utils import require_pil
@pytest.fixture
def csv_file(tmp_path):
filename = tmp_path / "file.csv"
data = textwrap.dedent(
"""\
header1,header2
1,2
10,20
"""
)
with open(filename, "w") as f:
f.write(data)
return str(filename)
@pytest.fixture
def malformed_csv_file(tmp_path):
filename = tmp_path / "malformed_file.csv"
data = textwrap.dedent(
"""\
header1,header2
1,2
10,20,
"""
)
with open(filename, "w") as f:
f.write(data)
return str(filename)
@pytest.fixture
def csv_file_with_image(tmp_path, image_file):
filename = tmp_path / "csv_with_image.csv"
data = textwrap.dedent(
f"""\
image
{image_file}
"""
)
with open(filename, "w") as f:
f.write(data)
return str(filename)
@pytest.fixture
def csv_file_with_label(tmp_path):
filename = tmp_path / "csv_with_label.csv"
data = textwrap.dedent(
"""\
label
good
bad
good
"""
)
with open(filename, "w") as f:
f.write(data)
return str(filename)
@pytest.fixture
def csv_file_with_int_list(tmp_path):
filename = tmp_path / "csv_with_int_list.csv"
data = textwrap.dedent(
"""\
int_list
1 2 3
4 5 6
7 8 9
"""
)
with open(filename, "w") as f:
f.write(data)
return str(filename)
def test_csv_generate_tables_raises_error_with_malformed_csv(csv_file, malformed_csv_file, caplog):
csv = Csv()
generator = csv._generate_tables([[csv_file, malformed_csv_file]])
with pytest.raises(ValueError, match="Error tokenizing data"):
for _ in generator:
pass
assert any(
record.levelname == "ERROR"
and "Failed to read file" in record.message
and os.path.basename(malformed_csv_file) in record.message
for record in caplog.records
)
@require_pil
def test_csv_cast_image(csv_file_with_image):
with open(csv_file_with_image, encoding="utf-8") as f:
image_file = f.read().splitlines()[1]
csv = Csv(encoding="utf-8", features=Features({"image": Image()}))
generator = csv._generate_tables([[csv_file_with_image]])
pa_table = pa.concat_tables([table for _, table in generator])
assert pa_table.schema.field("image").type == Image()()
generated_content = pa_table.to_pydict()["image"]
assert generated_content == [{"path": image_file, "bytes": None}]
def test_csv_cast_label(csv_file_with_label):
with open(csv_file_with_label, encoding="utf-8") as f:
labels = f.read().splitlines()[1:]
csv = Csv(encoding="utf-8", features=Features({"label": ClassLabel(names=["good", "bad"])}))
generator = csv._generate_tables([[csv_file_with_label]])
pa_table = pa.concat_tables([table for _, table in generator])
assert pa_table.schema.field("label").type == ClassLabel(names=["good", "bad"])()
generated_content = pa_table.to_pydict()["label"]
assert generated_content == [ClassLabel(names=["good", "bad"]).str2int(label) for label in labels]
def test_csv_convert_int_list(csv_file_with_int_list):
csv = Csv(encoding="utf-8", sep=",", converters={"int_list": lambda x: [int(i) for i in x.split()]})
generator = csv._generate_tables([[csv_file_with_int_list]])
pa_table = pa.concat_tables([table for _, table in generator])
assert pa.types.is_list(pa_table.schema.field("int_list").type)
generated_content = pa_table.to_pydict()["int_list"]
assert generated_content == [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
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