def test_stacks_dequeue_multiple():
queue = PseudoQueue()
queue.enqueue(1)
queue.enqueue(2)
queue.enqueue(3)
queue.dequeue()
queue.dequeue()
assert queue.secound_stack.top.value == 3
assert queue.secound_stack.top.next == None
def test_PseudoQueue_dequeue_multi():
new_psQ = PseudoQueue()
new_psQ.enqueue(3)
new_psQ.enqueue(6)
new_psQ.enqueue(9)
new_psQ.enqueue(4)
new_psQ.enqueue(7)
new_psQ.enqueue(10)
new_psQ.dequeue()
new_psQ.dequeue()
new_psQ.dequeue()
assert new_psQ.__str__() == '{10} -> {7} -> {4} -> '
def test_enqueue_dequeue(my_stack):
pseudo_q = PseudoQueue(my_stack)
assert pseudo_q.stack1.peek() == 10
pseudo_q.enqueue('cat')
assert pseudo_q.stack1.peek() == 'cat'
pseudo_q.enqueue('dog')
assert pseudo_q.stack1.peek() == 'dog'
assert pseudo_q.dequeue() == 'a'
assert pseudo_q.stack1.peek() == 'dog'
assert pseudo_q.dequeue() == 'b'
assert pseudo_q.stack1.peek() == 'dog'
assert pseudo_q.dequeue() == 'c'
assert pseudo_q.dequeue() == 10
assert pseudo_q.dequeue() == 'cat'
assert pseudo_q.dequeue() == 'dog'
def test_PseudoQueue_dequeue():
new_psQ = PseudoQueue()
new_psQ.enqueue(3)
new_psQ.enqueue(6)
new_psQ.enqueue(9)
new_psQ.enqueue(4)
new_psQ.enqueue(7)
new_psQ.enqueue(10)
assert new_psQ.dequeue() == 3
def test_failure_case():
pseudo_q = PseudoQueue()
assert pseudo_q.dequeue() == "PseudoQueue is empty"
def test_dequeue_empty():
pseudo_q = PseudoQueue(Stack())
with pytest.raises(Exception):
result = pseudo_q.dequeue()
def test_dequeue(my_stack):
pseudo_q = PseudoQueue(my_stack)
assert pseudo_q.dequeue() == 'a'
def test_PseudoQueue_dequeue_faliure_case():
new_psQ = PseudoQueue()
assert new_psQ.dequeue() == "stack is empty!"
def test_dequeue():
queue = PseudoQueue()
queue.enqueue(5)
assert queue.dequeue() == 5