Function test_python_scalar_construtors

numpy/array_api/tests/test_array_object.py:274–310

()

def test_python_scalar_construtors():
    b = asarray(False)
    i = asarray(0)
    f = asarray(0.0)
    c = asarray(0j)

    assert bool(b) == False
    assert int(i) == 0
    assert float(f) == 0.0
    assert operator.index(i) == 0

    # bool/int/float/complex should only be allowed on 0-D arrays.
    assert_raises(TypeError, lambda: bool(asarray([False])))
    assert_raises(TypeError, lambda: int(asarray([0])))
    assert_raises(TypeError, lambda: float(asarray([0.0])))
    assert_raises(TypeError, lambda: complex(asarray([0j])))
    assert_raises(TypeError, lambda: operator.index(asarray([0])))

    # bool should work on all types of arrays
    assert bool(b) is bool(i) is bool(f) is bool(c) is False

    # int should fail on complex arrays
    assert int(b) == int(i) == int(f) == 0
    assert_raises(TypeError, lambda: int(c))

    # float should fail on complex arrays
    assert float(b) == float(i) == float(f) == 0.0
    assert_raises(TypeError, lambda: float(c))

    # complex should work on all types of arrays
    assert complex(b) == complex(i) == complex(f) == complex(c) == 0j

    # index should only work on integer arrays
    assert operator.index(i) == 0
    assert_raises(TypeError, lambda: operator.index(b))
    assert_raises(TypeError, lambda: operator.index(f))
    assert_raises(TypeError, lambda: operator.index(c))


def test_device_property():