class TestMin(unittest.TestCase):
def setUp(self):
self.q = Queue()
def test_constructor(self):
self.assertEqual(type(self.q), Queue)
def test_fifo_append_all_then_pop(self):
for i in range(10):
self.q.append(i)
for i in range(10):
with self.subTest(i=i):
self.assertEqual(self.q.popleft(), i)
def test_fifo_concerrent_append_and_pop(self):
for i in range(10):
with self.subTest(i=i):
self.q.append(i)
self.assertEqual(self.q.popleft(), i)
class TestPopleftMethod(unittest.TestCase):
def setUp(self):
self.q = Queue()
def test_pop_from_empty(self):
with self.assertRaises(IndexError):
self.q.popleft()
self.assertEqual(self.q.head, None)
def test_pop_with_1_elem(self):
self.q.append(0)
self.assertEqual(self.q.popleft(), 0)
self.assertEqual(self.q.head, None)
def test_pop_with_multiple_elem(self):
for i in range(10):
self.q.append(i)
for i in range(10):
with self.subTest(i=i):
self.assertEqual(self.q.popleft(), i)
self.assertEqual(self.q.head, None)