def setUp(self):
# print('In setUp()')
self.testStack = Stack()
class TestStack(unittest.TestCase):
def setUp(self):
# print('In setUp()')
self.testStack = Stack()
def tearDown(self):
# print('In tearDown()')
del self.testStack
def test_isEmpty(self):
self.assertTrue(self.testStack.isEmpty(), 'isEmpty test fail')
self.assertEqual(len(self.testStack), 0)
def test_push(self):
self.testStack.push('item')
self.assertFalse(self.testStack.isEmpty(), 'push test fail')
self.assertEqual(len(self.testStack), 1)
def test_peek(self):
self.testStack.push('item')
item = self.testStack.peek()
self.assertEqual(item, 'item')
self.assertEqual(len(self.testStack), 1)
self.assertEqual(self.testStack._top.next, None)
def test_pop(self):
self.testStack.push('item')
item = self.testStack.pop()
self.assertTrue(item, 'item')
self.assertTrue(self.testStack.isEmpty())
self.assertEqual(len(self.testStack), 0)