Function test_instances

numpy/_core/tests/test_getlimits.py:119–141

()

def test_instances():
    # Test the finfo and iinfo results on numeric instances agree with
    # the results on the corresponding types

    for c in [int, np.int16, np.int32, np.int64]:
        class_iinfo = iinfo(c)
        instance_iinfo = iinfo(c(12))

        assert_iinfo_equal(class_iinfo, instance_iinfo)

    for c in [float, np.float16, np.float32, np.float64]:
        class_finfo = finfo(c)
        instance_finfo = finfo(c(1.2))
        assert_finfo_equal(class_finfo, instance_finfo)

    with pytest.raises(ValueError):
        iinfo(10.)

    with pytest.raises(ValueError):
        iinfo('hi')

    with pytest.raises(ValueError):
        finfo(np.int64(1))


def test_subnormal_warning():