def test_feautures(self):
ht = HashTable()
ht.put('Evance', 13)
ht.put('Alex', 18)
ht.put('Frank', 15)
ht.put('Liz', 13)
ht.put('Frank', 14)
self.assertEqual(ht.count(), 5)
self.assertEqual(ht.has('Frank'), True)
self.assertEqual([(x.key, x.val) for x in ht.get('Frank')], [('Frank', 15),('Frank', 14)])
ht.delete('Frank')
self.assertEqual(ht.count(), 3)
self.assertEqual(ht.has('Frank'), False)
