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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.
159 lines
4.9 KiB
Python
159 lines
4.9 KiB
Python
import pytest
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from pybind11_tests import sequences_and_iterators as m
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from pybind11_tests import ConstructorStats
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def isclose(a, b, rel_tol=1e-05, abs_tol=0.0):
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"""Like math.isclose() from Python 3.5"""
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return abs(a - b) <= max(rel_tol * max(abs(a), abs(b)), abs_tol)
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def allclose(a_list, b_list, rel_tol=1e-05, abs_tol=0.0):
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return all(isclose(a, b, rel_tol=rel_tol, abs_tol=abs_tol) for a, b in zip(a_list, b_list))
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def test_generalized_iterators():
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assert list(m.IntPairs([(1, 2), (3, 4), (0, 5)]).nonzero()) == [(1, 2), (3, 4)]
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assert list(m.IntPairs([(1, 2), (2, 0), (0, 3), (4, 5)]).nonzero()) == [(1, 2)]
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assert list(m.IntPairs([(0, 3), (1, 2), (3, 4)]).nonzero()) == []
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assert list(m.IntPairs([(1, 2), (3, 4), (0, 5)]).nonzero_keys()) == [1, 3]
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assert list(m.IntPairs([(1, 2), (2, 0), (0, 3), (4, 5)]).nonzero_keys()) == [1]
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assert list(m.IntPairs([(0, 3), (1, 2), (3, 4)]).nonzero_keys()) == []
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# __next__ must continue to raise StopIteration
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it = m.IntPairs([(0, 0)]).nonzero()
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for _ in range(3):
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with pytest.raises(StopIteration):
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next(it)
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it = m.IntPairs([(0, 0)]).nonzero_keys()
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for _ in range(3):
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with pytest.raises(StopIteration):
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next(it)
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def test_sequence():
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cstats = ConstructorStats.get(m.Sequence)
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s = m.Sequence(5)
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assert cstats.values() == ['of size', '5']
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assert "Sequence" in repr(s)
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assert len(s) == 5
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assert s[0] == 0 and s[3] == 0
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assert 12.34 not in s
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s[0], s[3] = 12.34, 56.78
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assert 12.34 in s
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assert isclose(s[0], 12.34) and isclose(s[3], 56.78)
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rev = reversed(s)
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assert cstats.values() == ['of size', '5']
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rev2 = s[::-1]
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assert cstats.values() == ['of size', '5']
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it = iter(m.Sequence(0))
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for _ in range(3): # __next__ must continue to raise StopIteration
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with pytest.raises(StopIteration):
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next(it)
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assert cstats.values() == ['of size', '0']
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expected = [0, 56.78, 0, 0, 12.34]
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assert allclose(rev, expected)
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assert allclose(rev2, expected)
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assert rev == rev2
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rev[0::2] = m.Sequence([2.0, 2.0, 2.0])
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assert cstats.values() == ['of size', '3', 'from std::vector']
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assert allclose(rev, [2, 56.78, 2, 0, 2])
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assert cstats.alive() == 4
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del it
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assert cstats.alive() == 3
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del s
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assert cstats.alive() == 2
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del rev
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assert cstats.alive() == 1
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del rev2
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assert cstats.alive() == 0
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assert cstats.values() == []
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assert cstats.default_constructions == 0
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assert cstats.copy_constructions == 0
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assert cstats.move_constructions >= 1
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assert cstats.copy_assignments == 0
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assert cstats.move_assignments == 0
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def test_map_iterator():
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sm = m.StringMap({'hi': 'bye', 'black': 'white'})
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assert sm['hi'] == 'bye'
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assert len(sm) == 2
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assert sm['black'] == 'white'
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with pytest.raises(KeyError):
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assert sm['orange']
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sm['orange'] = 'banana'
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assert sm['orange'] == 'banana'
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expected = {'hi': 'bye', 'black': 'white', 'orange': 'banana'}
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for k in sm:
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assert sm[k] == expected[k]
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for k, v in sm.items():
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assert v == expected[k]
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it = iter(m.StringMap({}))
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for _ in range(3): # __next__ must continue to raise StopIteration
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with pytest.raises(StopIteration):
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next(it)
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def test_python_iterator_in_cpp():
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t = (1, 2, 3)
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assert m.object_to_list(t) == [1, 2, 3]
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assert m.object_to_list(iter(t)) == [1, 2, 3]
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assert m.iterator_to_list(iter(t)) == [1, 2, 3]
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with pytest.raises(TypeError) as excinfo:
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m.object_to_list(1)
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assert "object is not iterable" in str(excinfo.value)
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with pytest.raises(TypeError) as excinfo:
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m.iterator_to_list(1)
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assert "incompatible function arguments" in str(excinfo.value)
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def bad_next_call():
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raise RuntimeError("py::iterator::advance() should propagate errors")
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with pytest.raises(RuntimeError) as excinfo:
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m.iterator_to_list(iter(bad_next_call, None))
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assert str(excinfo.value) == "py::iterator::advance() should propagate errors"
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l = [1, None, 0, None]
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assert m.count_none(l) == 2
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assert m.find_none(l) is True
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assert m.count_nonzeros({"a": 0, "b": 1, "c": 2}) == 2
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r = range(5)
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assert all(m.tuple_iterator(tuple(r)))
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assert all(m.list_iterator(list(r)))
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assert all(m.sequence_iterator(r))
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def test_iterator_passthrough():
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"""#181: iterator passthrough did not compile"""
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from pybind11_tests.sequences_and_iterators import iterator_passthrough
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assert list(iterator_passthrough(iter([3, 5, 7, 9, 11, 13, 15]))) == [3, 5, 7, 9, 11, 13, 15]
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def test_iterator_rvp():
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"""#388: Can't make iterators via make_iterator() with different r/v policies """
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import pybind11_tests.sequences_and_iterators as m
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assert list(m.make_iterator_1()) == [1, 2, 3]
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assert list(m.make_iterator_2()) == [1, 2, 3]
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assert not isinstance(m.make_iterator_1(), type(m.make_iterator_2()))
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