def test_parse_kern_double_stops():
assert isinstance(humdrum.parse_kern("4c 4c"), score.MultipleStop)
def test_parse_kern_4c_base12():
assert humdrum.parse_kern("4c", note_system="base12").code == 0
def test_parse_kern_4r():
assert isinstance(humdrum.parse_kern("4r"), score.Rest)
def test_parse_kern_4c_base40():
assert humdrum.parse_kern("4c").code == 3
def test_parse_kern_4c():
assert isinstance(humdrum.parse_kern("4c"), score.Note)
