def test_stack02(self):
#testing index error for pop and peek
stack= Stack(1)
with self.assertRaises(IndexError):
stack.pop()
with self.assertRaises(IndexError):
stack.peek()
def test_stack04(self):
stack = Stack(10)
stack.push(1)
stack.push(2)
stack.push(30)
self.assertFalse(stack.is_full())
self.assertFalse(stack.is_empty())
self.assertEqual(stack.peek(),30)
self.assertEqual(stack.size(),3)
self.assertEqual(stack.pop(),30)
self.assertEqual(stack.pop(),2)
self.assertEqual(stack.pop(),1)
self.assertTrue(stack.is_empty())
def test_simple_1(self):
stack = Stack(5)
stack.push(0)
stack.push(1)
stack.push(2)
self.assertFalse(stack.is_empty())
self.assertFalse(stack.is_full())
self.assertEqual(stack.size(), 3)
self.assertEqual(stack.peek(), 2)
# Pop time
self.assertEqual(stack.pop(), 2)
self.assertEqual(stack.size(), 2)
self.assertEqual(stack.peek(), 1)
# Pop second time
self.assertEqual(stack.pop(), 1)
self.assertEqual(stack.size(), 1)
self.assertEqual(stack.peek(), 0)
def test_max(self):
"""Testing everything can think of"""
stack = Stack(5)
stack.push(0)
stack.push(1)
stack.push(2)
stack.push(3)
stack.push(4)
self.assertFalse(stack.is_empty())
self.assertTrue(stack.is_full())
self.assertRaises(IndexError, stack.push,
5) # used to check for exception
self.assertEqual(stack.pop(), 4)
self.assertEqual(stack.size(), 4)
self.assertEqual(stack.peek(), 3)
# Pop second time
self.assertEqual(stack.pop(), 3)
self.assertEqual(stack.size(), 3)
self.assertEqual(stack.peek(), 2)
self.assertEqual(stack.pop(), 2)
self.assertEqual(stack.pop(), 1)
self.assertEqual(stack.pop(), 0)
self.assertTrue(stack.is_empty())
self.assertRaises(IndexError, stack.peek)
self.assertRaises(IndexError, stack.pop) # used to check for exception
stack.push(0)
stack.push(1)
stack.push(2)
stack.push(3)
stack.push(4)
self.assertFalse(stack.is_empty())
self.assertTrue(stack.is_full())
self.assertRaises(IndexError, stack.push,
5) # used to check for exception
self.assertEqual(stack.pop(), 4)
self.assertEqual(stack.size(), 4)
self.assertEqual(stack.peek(), 3)
def test_simple(self):
stack = Stack(5)
with self.assertRaises(IndexError):
stack.pop()
with self.assertRaises(IndexError):
stack.peek()
self.assertTrue(stack.is_empty())
stack.push(0)
self.assertFalse(stack.is_empty())
self.assertFalse(stack.is_full())
stack.push(1)
stack.push(2)
stack.push(3)
stack.push(4)
self.assertEqual(stack.size(), 5)
with self.assertRaises(IndexError):
stack.push(5)
self.assertTrue(stack.is_full())
self.assertEqual(stack.pop(), 4)
self.assertEqual(stack.size(), 4)
self.assertEqual(stack.peek(), 3)