def test_extend_path_by_another_single_path():
path = Path((1, 0, 0))
path.line_to((2, 0, 0))
p1 = Path((3, 0, 0))
p1.line_to((4, 0, 0))
path.extend_multi_path(p1)
assert path.has_sub_paths is True
assert path.start == (1, 0, 0)
assert path.end == (4, 0, 0)
def test_extend_path_by_another_none_empty_path():
p0 = Path((1, 0, 0))
p0.line_to((2, 0, 0))
p1 = Path((3, 0, 0))
p1.line_to((3, 0, 0))
p0.extend_multi_path(p1)
assert p0.has_sub_paths is True
assert p0.start == (1, 0, 0)
assert p0.end == (3, 0, 0)
