def test_append():
append_test_list = LinkedList()
append_test_list.append(20)
actual = append_test_list.head.value
excepted = 20
assert actual == excepted
actual = append_test_list.head.next
excepted = None
assert actual == excepted
def sample_linked_list_b():
linked_list = LinkedList()
linked_list.append(15)
linked_list.append(25)
linked_list.append(35)
linked_list.append(45)
linked_list.append(55)
linked_list.append(65)
return linked_list
def sample_linked_list():
linked_list = LinkedList()
linked_list.append(10)
linked_list.append(20)
linked_list.append(30)
linked_list.append(40)
return linked_list
def add(self, key, val):
hashed = self.hash(key)
if not self.indicies[hashed]: self.indicies[hashed] = LinkedList()
self.indicies[hashed].append([key, val])
def test__str__empty_list():
empty_linked_list = LinkedList()
actual = empty_linked_list.__str__()
expected = 'None'
assert actual == expected
def test_linked_list():
test_list = LinkedList()
actual = test_list.head
expected = None
assert actual == expected
def empty_ll():
return LinkedList()