def test_joined_segments(self):
self.assertTrue(intersect.lineSegmentsOverlap(
((0, 0), (0, 1)),
((0, 1), (0, 2))))
def test_they_do_not_overlap(self):
self.assertFalse(intersect.lineSegmentsOverlap(
((0, 0), (0, 1)),
((0, 2), (0, 3))))
def test_they_overlap(self):
self.assertTrue(intersect.lineSegmentsOverlap(
((0, 0), (0, 2)),
((0, 1), (0, 3))))
