def test_find_all_5(self):
        linked_list = LinkedList()
        linked_list.add_in_tail(self.n1)
        linked_list.add_in_tail(self.n2)
        linked_list.add_in_tail(self.n3)
        linked_list.add_in_tail(self.n4)
        linked_list.add_in_tail(self.n5)

        self.assertEqual(linked_list.find_all(12), [self.n1, self.n2, self.n4, self.n5])
    def test_find_all_3(self):
        linked_list = LinkedList()
        linked_list.add_in_tail(self.n1)

        self.assertEqual(linked_list.find_all(12), [self.n1])
    def test_find_all_4(self):
        linked_list = LinkedList()
        linked_list.add_in_tail(self.n1)

        self.assertEqual(linked_list.find_all(874), [])
    def test_find_all_2(self):
        linked_list = LinkedList()

        self.assertEqual(linked_list.find_all(57), [])