(self)
| 75 | |
| 76 | class TestStack(unittest.TestCase): |
| 77 | def test_array_stack(self): |
| 78 | stack = ArrayStack() |
| 79 | stack.push(1) |
| 80 | stack.push(2) |
| 81 | stack.push(3) |
| 82 | |
| 83 | # test __iter__() |
| 84 | it = iter(stack) |
| 85 | self.assertEqual(3, next(it)) |
| 86 | self.assertEqual(2, next(it)) |
| 87 | self.assertEqual(1, next(it)) |
| 88 | self.assertRaises(StopIteration, next, it) |
| 89 | |
| 90 | # test __len__() |
| 91 | self.assertEqual(3, len(stack)) |
| 92 | |
| 93 | # test __str__() |
| 94 | self.assertEqual(str(stack), "Top-> 3 2 1") |
| 95 | |
| 96 | # test is_empty() |
| 97 | self.assertFalse(stack.is_empty()) |
| 98 | |
| 99 | # test peek() |
| 100 | self.assertEqual(3, stack.peek()) |
| 101 | |
| 102 | # test pop() |
| 103 | self.assertEqual(3, stack.pop()) |
| 104 | self.assertEqual(2, stack.pop()) |
| 105 | self.assertEqual(1, stack.pop()) |
| 106 | |
| 107 | self.assertTrue(stack.is_empty()) |
| 108 | |
| 109 | def test_linked_list_stack(self): |
| 110 | stack = LinkedListStack() |
nothing calls this directly
no test coverage detected