test_sfix.py 文件源码

def test_auto_size_bits_list():
    pytest.skip()
    a = [0.5, 1.2, 3.2]
    b = Sfix.auto_size(a, 18)
    for x, y in zip(a, b):
        np.isclose(y.val, x)
        assert y.left == 2
        assert y.right == -15

    a = [np.arctan(2 ** -i) for i in range(8)]
    b = Sfix.auto_size(a, 18)
    for x, y in zip(a, b):
        np.isclose(y.val, x)
        assert y.left == 0
        assert y.right == -17

    a = [np.arctan(2 ** -i) for i in range(8, 12)]
    b = Sfix.auto_size(a, 18)
    for x, y in zip(a, b):
        np.isclose(y.val, x)
        assert y.left == -8
        assert y.right == -25