class TestTriePrefixExists(unittest.TestCase):
def test_trie_node_prefix_exists(self):
self.trie = Trie()
self.trie.add_all(['ash', 'ashley'])
self.assertIsInstance(self.trie, Trie,
"Object should be of type `lexpy.trie.Trie`")
self.assertTrue('ash' in self.trie, "Word should be in trie")
self.assertTrue('ashley' in self.trie, "Word should be in trie")
self.assertEqual(2, self.trie.get_word_count(), "Word count not equal")
self.assertTrue(self.trie.contains_prefix('ash'),
"Prefix should be present in Trie")
self.assertTrue(self.trie.contains_prefix('as'),
"Prefix should be present in Trie")
self.assertTrue(self.trie.contains_prefix('a'),
"Prefix should be present in Trie")
def test_trie_node_prefix_not_exists(self):
self.trie = Trie()
self.trie.add_all(['ash', 'ashley'])
self.assertIsInstance(self.trie, Trie,
"Object should be of type `lexpy.trie.Trie`")
self.assertTrue('ash' in self.trie, "Word should be in trie")
self.assertTrue('ashley' in self.trie, "Word should be in trie")
self.assertEqual(2, self.trie.get_word_count(), "Word count not equal")
self.assertFalse(self.trie.contains_prefix('xmas'),
"Prefix should be present in Trie")
self.assertFalse(self.trie.contains_prefix('xor'),
"Prefix should be present in Trie")
self.assertFalse(self.trie.contains_prefix('sh'),
"Prefix should be present in Trie")
class TestTriePrefixSearch(unittest.TestCase):
def test_trie_prefix_search(self):
self.trie = Trie()
self.trie.add_all(['ashlame', 'ashley', 'askoiu', 'ashlo'])
self.assertIsInstance(self.trie, Trie,
"Object should be of type `lexpy.trie.Trie`")
self.assertFalse('ash' in self.trie, "Word should not be in trie")
self.assertTrue('ashley' in self.trie, "Word should be in trie")
self.assertEqual(4, self.trie.get_word_count(), "Word count not equal")
self.assertTrue(self.trie.contains_prefix('ash'),
"Prefix should be present in Trie")
self.assertEqual(sorted(self.trie.search_with_prefix('ash')),
sorted(['ashlame', 'ashley', 'ashlo']),
'The lists should be equal')