def test_not_empty(self):
"""
A queue with one enqueued value is not empty.
"""
pq = NaivePriorityQueue()
pq.enqueue(Job(1, 'People'))
self.assertFalse(pq.is_empty())
def test_empty_after_dequeue(self):
"""
A queue with one enqueued value is empty after dequeuing.
"""
pq = NaivePriorityQueue()
pq.enqueue(Job(1, 'was'))
_ = pq.dequeue()
self.assertTrue(pq.is_empty())
def test_not_empty_multiple(self):
"""
A queue with two enqueued values is not empty after dequeuing only one.
"""
pq = NaivePriorityQueue()
pq.enqueue(Job(1, 'hustling'))
pq.enqueue(Job(3, 'arguing and bustling'))
_ = pq.dequeue()
self.assertFalse(pq.is_empty())
def test_empty(self):
"""
A queue is initially empty.
"""
pq = NaivePriorityQueue()
self.assertTrue(pq.is_empty())