def test_7(self):
""" test remove(node) """
l = LinkedList()
n1 = Node(1)
n2 = Node(2)
n3 = Node(3)
l.append(n1)
l.append(n2)
l.append(n3)
l.remove(2)
self.assertEqual(n1._next._value, 3)
def test_6(self):
""" test remove(node) for no matching node """
l = LinkedList()
n1 = Node(1)
n2 = Node(2)
n3 = Node(3)
l.append(n1)
l.append(n2)
l.append(n3)
self.assertEqual(l.remove(7), "Error: Node does not exist!")