class QueueEmptyTestCase(unittest.TestCase):
"""Test behaviour of an empty Queue."""
def setUp(self):
"""Set up an empty queue."""
self.queue = Queue()
def tearDown(self):
"""Clean up."""
self.queue = None
def testIsEmpty(self):
"""Test is_empty() on empty Queue."""
self.assertTrue(self.queue.is_empty(), \
'is_empty returned False on an empty Queue!')
def testPush(self):
"""Test enqueue to empty Queue."""
self.queue.enqueue("foo")
self.assertEqual(self.queue.dequeue(), "foo", \
'Wrong item on top of the Queue!\
Expected "foo" here.')
def testEmpty(self):
"""Test dequeue from an empty Queue."""
try:
self.queue.dequeue()
self.fail('dequeue from empty queue does not produce error')
except EmptyQueueError:
pass
def testDel(self):
"""Test queue_del from Queue"""
self.queue.queue_del()
self.assertEqual(self.queue.contents, [], \
'Wrong item on top of the Queue! \
Expected "foo" here.')
class QueueEmptyTestCase(unittest.TestCase):
"""Test behaviour of an empty Queue."""
def setUp(self):
"""Set up an empty queue."""
self.queue = Queue()
def tearDown(self):
"""Clean up."""
self.queue = None
def testIsEmpty(self):
"""Test is_empty() on empty Queue."""
self.assertTrue(self.queue.is_empty(), \
'is_empty returned False on an empty Queue!')
def testPush(self):
"""Test enqueue to empty Queue."""
self.queue.enqueue("foo")
self.assertEqual(self.queue.dequeue(), "foo", \
'Wrong item on top of the Queue!\
Expected "foo" here.' )
def testEmpty(self):
"""Test dequeue from an empty Queue."""
try:
self.queue.dequeue()
self.fail('dequeue from empty queue does not produce error')
except EmptyQueueError:
pass
def testDel(self):
"""Test queue_del from Queue"""
self.queue.queue_del()
self.assertEqual(self.queue.contents, [], \
'Wrong item on top of the Queue! \
Expected "foo" here.' )
