def test_overlap(self):
p1 = Literal("hello").matching_regex_pattern
p2 = Literal("hello world").matching_regex_pattern
m1 = p1.match("hello world")
m2 = p2.match("hello world")
self.assertTrue(matches_overlap(m1, m2))
self.assertTrue(matches_overlap(m2, m1))
def test_no_overlap(self):
m1 = self.p1.match("hey")
m2 = self.p2.match("hey")
self.assertFalse(matches_overlap(m1, m2))
m1 = self.p1.match("hello")
m2 = self.p2.match("hello")
self.assertFalse(matches_overlap(m1, m2))
m1 = self.p1.match("hey hello")
m2 = self.p2.match("hey hello")
self.assertFalse(matches_overlap(m1, m2))
def test_commutative(self):
m1 = self.p1.match("hey")
m2 = self.p2.match("hey")
msg = "matches_overlap should be commutative (order does not matter)"
self.assertFalse(matches_overlap(m1, m2))
self.assertEqual(matches_overlap(m1, m2), matches_overlap(m2, m1), msg)
m1 = self.p1.match("hey hello")
m2 = self.p2.match("hey hello")
self.assertFalse(matches_overlap(m1, m2))
self.assertEqual(matches_overlap(m1, m2), matches_overlap(m2, m1), msg)
m1 = self.p2.match("hello world")
m2 = self.p3.match("hello world")
self.assertTrue(matches_overlap(m1, m2))
self.assertEqual(matches_overlap(m1, m2), matches_overlap(m2, m1), msg)
def test_same_match(self):
p1 = Literal("hello").matching_regex_pattern
m1 = p1.match("hello")
self.assertTrue(matches_overlap(m1, m1))
self.assertFalse(matches_overlap(None, None))