def test_errors_ymd():
with pytest.raises(TypeError):
_k.ymd()
def test_k_methods():
assert _k.ymd(2000, 1, 1) == 0
assert _k.ymd(1970, 1, 1) == -10957
assert _k.dj(0) == 20000101
assert _k.dj(-10957) == 19700101