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391c75447d
This udpates all the remaining tests to the new test suite code and comment styles started in #898. For the most part, the test coverage here is unchanged, with a few minor exceptions as noted below. - test_constants_and_functions: this adds more overload tests with overloads with different number of arguments for more comprehensive overload_cast testing. The test style conversion broke the overload tests under MSVC 2015, prompting the additional tests while looking for a workaround. - test_eigen: this dropped the unused functions `get_cm_corners` and `get_cm_corners_const`--these same tests were duplicates of the same things provided (and used) via ReturnTester methods. - test_opaque_types: this test had a hidden dependence on ExampleMandA which is now fixed by using the global UserType which suffices for the relevant test. - test_methods_and_attributes: this required some additions to UserType to make it usable as a replacement for the test's previous SimpleType: UserType gained a value mutator, and the `value` property is not mutable (it was previously readonly). Some overload tests were also added to better test overload_cast (as described above). - test_numpy_array: removed the untemplated mutate_data/mutate_data_t: the templated versions with an empty parameter pack expand to the same thing. - test_stl: this was already mostly in the new style; this just tweaks things a bit, localizing a class, and adding some missing `// test_whatever` comments. - test_virtual_functions: like `test_stl`, this was mostly in the new test style already, but needed some `// test_whatever` comments. This commit also moves the inherited virtual example code to the end of the file, after the main set of tests (since it is less important than the other tests, and rather length); it also got renamed to `test_inherited_virtuals` (from `test_inheriting_repeat`) because it tests both inherited virtual approaches, not just the repeat approach.
84 lines
2.4 KiB
Python
84 lines
2.4 KiB
Python
import struct
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import pytest
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from pybind11_tests import buffers as m
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from pybind11_tests import ConstructorStats
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pytestmark = pytest.requires_numpy
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with pytest.suppress(ImportError):
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import numpy as np
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def test_from_python():
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with pytest.raises(RuntimeError) as excinfo:
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m.Matrix(np.array([1, 2, 3])) # trying to assign a 1D array
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assert str(excinfo.value) == "Incompatible buffer format!"
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m3 = np.array([[1, 2, 3], [4, 5, 6]]).astype(np.float32)
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m4 = m.Matrix(m3)
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for i in range(m4.rows()):
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for j in range(m4.cols()):
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assert m3[i, j] == m4[i, j]
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cstats = ConstructorStats.get(m.Matrix)
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assert cstats.alive() == 1
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del m3, m4
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assert cstats.alive() == 0
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assert cstats.values() == ["2x3 matrix"]
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assert cstats.copy_constructions == 0
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# assert cstats.move_constructions >= 0 # Don't invoke any
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assert cstats.copy_assignments == 0
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assert cstats.move_assignments == 0
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# PyPy: Memory leak in the "np.array(m, copy=False)" call
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# https://bitbucket.org/pypy/pypy/issues/2444
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@pytest.unsupported_on_pypy
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def test_to_python():
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mat = m.Matrix(5, 5)
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assert memoryview(mat).shape == (5, 5)
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assert mat[2, 3] == 0
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mat[2, 3] = 4
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assert mat[2, 3] == 4
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mat2 = np.array(mat, copy=False)
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assert mat2.shape == (5, 5)
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assert abs(mat2).sum() == 4
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assert mat2[2, 3] == 4
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mat2[2, 3] = 5
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assert mat2[2, 3] == 5
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cstats = ConstructorStats.get(m.Matrix)
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assert cstats.alive() == 1
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del mat
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pytest.gc_collect()
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assert cstats.alive() == 1
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del mat2 # holds a mat reference
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pytest.gc_collect()
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assert cstats.alive() == 0
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assert cstats.values() == ["5x5 matrix"]
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assert cstats.copy_constructions == 0
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# assert cstats.move_constructions >= 0 # Don't invoke any
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assert cstats.copy_assignments == 0
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assert cstats.move_assignments == 0
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@pytest.unsupported_on_pypy
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def test_inherited_protocol():
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"""SquareMatrix is derived from Matrix and inherits the buffer protocol"""
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matrix = m.SquareMatrix(5)
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assert memoryview(matrix).shape == (5, 5)
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assert np.asarray(matrix).shape == (5, 5)
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@pytest.unsupported_on_pypy
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def test_pointer_to_member_fn():
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for cls in [m.Buffer, m.ConstBuffer, m.DerivedBuffer]:
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buf = cls()
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buf.value = 0x12345678
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value = struct.unpack('i', bytearray(buf))[0]
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assert value == 0x12345678
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