pylibs/numpy/matrixlib/tests/test_matrix_linalg.py

""" Test functions for linalg module using the matrix class."""
import pytest

import numpy as np
from numpy.linalg.tests.test_linalg import (
    CondCases,
    DetCases,
    EigCases,
    EigvalsCases,
    InvCases,
    LinalgCase,
    LinalgTestCase,
    LstsqCases,
    PinvCases,
    SolveCases,
    SVDCases,
    TestQR as _TestQR,
    _TestNorm2D,
    _TestNormDoubleBase,
    _TestNormInt64Base,
    _TestNormSingleBase,
    apply_tag,
)

CASES = []

# square test cases
CASES += apply_tag('square', [
    LinalgCase("0x0_matrix",
               np.empty((0, 0), dtype=np.double).view(np.matrix),
               np.empty((0, 1), dtype=np.double).view(np.matrix),
               tags={'size-0'}),
    LinalgCase("matrix_b_only",
               np.array([[1., 2.], [3., 4.]]),
               np.matrix([2., 1.]).T),
    LinalgCase("matrix_a_and_b",
               np.matrix([[1., 2.], [3., 4.]]),
               np.matrix([2., 1.]).T),
])

# hermitian test-cases
CASES += apply_tag('hermitian', [
    LinalgCase("hmatrix_a_and_b",
               np.matrix([[1., 2.], [2., 1.]]),
               None),
])
# No need to make generalized or strided cases for matrices.


class MatrixTestCase(LinalgTestCase):
    TEST_CASES = CASES


class TestSolveMatrix(SolveCases, MatrixTestCase):
    pass


class TestInvMatrix(InvCases, MatrixTestCase):
    pass


class TestEigvalsMatrix(EigvalsCases, MatrixTestCase):
    pass


class TestEigMatrix(EigCases, MatrixTestCase):
    pass


class TestSVDMatrix(SVDCases, MatrixTestCase):
    pass


class TestCondMatrix(CondCases, MatrixTestCase):
    pass


class TestPinvMatrix(PinvCases, MatrixTestCase):
    pass


class TestDetMatrix(DetCases, MatrixTestCase):
    pass


@pytest.mark.thread_unsafe(
    reason="residuals not calculated properly for square tests (gh-29851)"
)
class TestLstsqMatrix(LstsqCases, MatrixTestCase):
    pass


class _TestNorm2DMatrix(_TestNorm2D):
    array = np.matrix


class TestNormDoubleMatrix(_TestNorm2DMatrix, _TestNormDoubleBase):
    pass


class TestNormSingleMatrix(_TestNorm2DMatrix, _TestNormSingleBase):
    pass


class TestNormInt64Matrix(_TestNorm2DMatrix, _TestNormInt64Base):
    pass


class TestQRMatrix(_TestQR):
    array = np.matrix