def test_tuple_access():
pt = PathTuple([1, 2, 3])
assert 1 in pt
assert 3 in pt
assert pt == (1, 2, 3)
assert pt[0] == 1
assert pt[2] == 3
assert pt.count(1) == 1
assert pt[:2] == (1, 2)
assert pt[1:] == (2, 3)
assert pt[:] == (1, 2, 3)
assert pt[1:2] == (2, )
assert pt[::2] == (1, 3)
assert pt[-1] == 3
assert pt[-2:] == (2, 3)
def test_initialized_empty():
pt = PathTuple()
assert len(pt) == 0
assert pt == ()
assert "a" not in pt
assert pt.count("") == 0
with pytest.raises(ValueError):
pt.index(None)
with pytest.raises(IndexError):
_ = pt[1]
for x in pt:
assert False