def test_pop(self):
stack = Stack(1)
for i in range(10):
stack.push(i)
for i in range(9, 0, -1):
top = stack.pop()
self.assertEqual(top, i)
stack.pop()
self.assertRaises(NameError)
def test_push(self):
stack = Stack()
for i in range(10):
stack.push(i)
self.assertEqual(stack.top.data, i)
def test_isEmpty(self):
new_stack = Stack()
self.assertTrue(new_stack.isEmpty())
new_stack.push(3)
self.assertFalse(new_stack.isEmpty())
def test_peak(self):
stack = Stack(1)
self.assertEqual(stack.peak(), 1)
