def test_parseAnchorName_invalid():
with pytest.raises(ValueError, match="mark anchor cannot be numbered"):
parseAnchorName("_top_2")
with pytest.raises(ValueError, match="mark anchor key is nil"):
parseAnchorName("_")
def test_parseAnchorName(input_expected):
anchorName, (isMark, key, number) = input_expected
assert parseAnchorName(anchorName) == (isMark, key, number)