| 30 | class TestBasic(unittest.TestCase): |
| 31 | |
| 32 | def test_basics(self): |
| 33 | d = deque(range(-5125, -5000)) |
| 34 | d.__init__(range(200)) |
| 35 | for i in range(200, 400): |
| 36 | d.append(i) |
| 37 | for i in reversed(range(-200, 0)): |
| 38 | d.appendleft(i) |
| 39 | self.assertEqual(list(d), list(range(-200, 400))) |
| 40 | self.assertEqual(len(d), 600) |
| 41 | |
| 42 | left = [d.popleft() for i in range(250)] |
| 43 | self.assertEqual(left, list(range(-200, 50))) |
| 44 | self.assertEqual(list(d), list(range(50, 400))) |
| 45 | |
| 46 | right = [d.pop() for i in range(250)] |
| 47 | right.reverse() |
| 48 | self.assertEqual(right, list(range(150, 400))) |
| 49 | self.assertEqual(list(d), list(range(50, 150))) |
| 50 | |
| 51 | def test_maxlen(self): |
| 52 | self.assertRaises(ValueError, deque, 'abc', -1) |