def test_shared_paths_none():
assert pygeos.shared_paths(line_string, None) is None
assert pygeos.shared_paths(None, line_string) is None
assert pygeos.shared_paths(None, None) is None
def test_shared_paths_non_linestring():
g1 = pygeos.linestrings([(0, 0), (1, 0), (1, 1)])
g2 = pygeos.points(0, 1)
with pytest.raises(pygeos.GEOSException):
pygeos.shared_paths(g1, g2)
def test_shared_paths_linestring():
g1 = pygeos.linestrings([(0, 0), (1, 0), (1, 1)])
g2 = pygeos.linestrings([(0, 0), (1, 0)])
actual1 = pygeos.shared_paths(g1, g2)
assert pygeos.equals(pygeos.get_geometry(actual1, 0), g2)
