def test_destroyStack(self):
stack = Stack()
stack.createStack()
stack.push(5)
stack.push(9)
stack.destroyStack()
self.assertIsNone(stack.top)
def test_isEmpty(self):
stack = Stack()
stack.createStack()
self.assertTrue(stack.isEmpty())
stack.push(9)
self.assertFalse(stack.isEmpty())
stack.destroyStack()
self.assertTrue(stack.isEmpty())
def test_getTop(self):
stack = Stack()
stack.createStack()
stack.push(3)
self.assertEqual(3, stack.getTop())
stack.push(7)
self.assertEqual(7, stack.getTop())
stack.pop()
self.assertEqual(3, stack.getTop())
def test_createStack(self):
stack = Stack()
stack.createStack()
self.assertIsNone(stack.top)
def test_pop(self):
stack = Stack()
stack.createStack()
stack.push(8)
stack.pop()
self.assertTrue(stack.isEmpty())
def test_push(self):
stack = Stack()
stack.createStack()
stack.push(5)
self.assertFalse(stack.isEmpty())
