def test_del_should_do_no_op_when_key_not_found(self):
lru_cache = LRUCache(3)
lru_cache.put(1, "abc")
lru_cache.put(2, "edf")
lru_cache.put(3, "ghi")
lru_cache.delete(4)
self.assertEqual(lru_cache._get_head_value(), "ghi", "Failed")
def test_del_should_remove_key_value(self):
lru_cache = LRUCache(3)
lru_cache.put(1, "abc")
lru_cache.put(2, "edf")
lru_cache.put(3, "ghi")
#deleting head
lru_cache.delete(3)
self.assertEqual(lru_cache._get_head_key(), 2, "Failed")
self.assertEqual(lru_cache._get_head_value(), "edf", "Failed")
self.assertIsNone(lru_cache.get(3), "Failed")
#deleting tail
lru_cache.put(3, "ghi")
lru_cache.delete(1)
self.assertEqual(lru_cache._get_tail_key(), 2, "Failed")
from lru_cache import LRUCache
from my_class import MyList
a = MyList([1, 2, 3])
b = MyList([1, 2, 3])
c = a + b
print(c) # вернет [2, 4, 6]
cache = LRUCache(100)
cache.set('Jesse', 'Pinkman')
cache.set('Walter', 'White')
cache.set('Jesse', 'James')
print(cache.get('Jesse')) # вернёт 'James'
cache.delete('Walter')
print(cache.get('Walter')) # вернёт ''
# cache.set('1', '1')
# cache.set('2', '2')
# cache.set('3', '3')
# cache.set('4', '4')
# cache.set('5', '5')
# print(cache.get('1'))
# cache.set('6', '6')
# cache.set('7', '7')
