def test_len_returns_positive_ints(self): queue = impl.Queue() try: # assert (type(queue.len())==int) and (queue.len()>=0) assert isinstance(queue.len(), int) and (queue.len() >= 0) except: assert False
def test_dequeue_when_queue_not_empty(self, param): queue = impl.Queue() for element in param: queue.enqueue(element) result = queue.dequeue() # print (result) assert result is not None
def test_enqueue_single_operation(self, a): queue = impl.Queue() for elem in a: # print (elem) expected_length = queue.len() + 1 queue.enqueue(elem) assert queue.len() == expected_length
def test_enqueue_multiple(self, a): queue = impl.Queue() for x in a: # print (x) queue.enqueue(x) for x in a: queue.dequeue() assert queue.dequeue() == None assert queue.len() == 0
def test_value_error(self, param): queue = impl.Queue() try: # print(param) queue.enqueue(param) except ValueError: pass except: assert False
def test_dequeue_val(self, param): queue = impl.Queue() try: for element in param: queue.enqueue(param) result = queue.dequeue() # print (result[0],'==',param[0]) assert result[0] == param[0] except: assert False
def test_dequeue_not_return_inf_nan(self, param): queue = impl.Queue() try: queue.enqueue(param) except ValueError: try: assert queue.dequeue() == None except: assert False except: assert False, "Sorry!"
def test_correct_enqueue(self, param): queue = impl.Queue() try: for element in param: queue.enqueue(element) for element in param: result = queue.dequeue() assert result == element for element in param: queue.enqueue(element) queue.enqueue('random_string') assert queue.len() == 2 for element in param: m = queue.dequeue() assert m == element new_result = queue.dequeue() print(new_result) assert queue.len() == 0 except: assert False
def test_len_when_initalize(self): queue = impl.Queue() try: assert queue.len() == 0 except: assert False
def test_len_when_not_empty(self, param): queue = impl.Queue() for elem in param: queue.enqueue(elem) # print (param) assert queue.len() == len(param)
def test_dequeue_when_queue_empty(self): q = impl.Queue() result = q.dequeue() assert result is None