def test1(self):
stack1 = Stack(1)
stack1.push(2)
self.assertFalse(stack1.is_empty())
self.assertTrue(stack1.is_full())
with self.assertRaises(IndexError): #checks for exception
stack1.push(1)
def test_simple(self):
stack = Stack(5)
stack.push(0)
self.assertFalse(stack.is_empty())
self.assertFalse(stack.is_full())
self.assertEqual(stack.size(), 1)
stack.push(4)
stack.push(9)
self.assertEqual(stack.size(), 3)
stack.push(8)
stack.push(7)
with self.assertRaises(IndexError):
stack.push(6)
stack.pop()
self.assertEqual(stack.size(), 4)
self.assertEqual(stack.peek(), 8)
stack.pop()
stack.pop()
stack.pop()
self.assertEqual(stack.pop(), 0)
self.assertEqual(stack.size(), 0)
with self.assertRaises(IndexError):
stack.pop()
with self.assertRaises(IndexError):
stack.peek()
def test_simple(self):
stack = Stack(5)
stack.push(0)
self.assertFalse(stack.is_empty())
self.assertFalse(stack.is_full())
self.assertEqual(stack.size(), 1)
stack.push(1)
self.assertEqual(stack.pop(), 1)
self.assertEqual(stack.peek(), 0)
def test2(self):
stack = Stack(4)
self.assertTrue(stack.is_empty())
stack.push(None)
stack.push(4)
stack.push(1)
stack.push(7)
self.assertTrue(stack.is_full())
self.assertEqual(stack.pop(), 7)
self.assertEqual(stack.size(), 3)
def test_simple_1(self):
stack = Stack(3)
self.assertRaises(IndexError, stack.peek)
stack.push(0)
stack.push(1)
stack.push(2)
self.assertRaises(IndexError, stack.push, 3)
self.assertTrue(stack.is_full())
self.assertEqual(stack.size(),3)
stack.pop()
stack.pop()
self.assertEqual(stack.pop(), 0)
def test_push(self):
stack = Stack(4)
stack.push(2)
stack.push(16)
self.assertEqual(stack.num_items, 2)
stack.push(10)
stack.push(21)
self.assertEqual(stack.items[0], 2)
self.assertEqual(stack.items[1], 16)
self.assertEqual(stack.items[2], 10)
self.assertEqual(stack.items[3], 21)
self.assertTrue(stack.is_full())
with self.assertRaises(IndexError): # used to check for exception
stack.push(66)
def test_simple(self):
stack = Stack(5)
self.assertTrue(stack.is_empty())
stack.push(0)
self.assertFalse(stack.is_empty())
self.assertFalse(stack.is_full())
self.assertEqual(stack.size(), 1)
stack.push(1)
self.assertEqual(stack.size(), 2)
self.assertEqual(stack.capacity, 5)
self.assertEqual(stack.peek(), 1)
self.assertEqual(stack.pop(), 1)
self.assertEqual(stack.size(), 1)
for i in range(4):
stack.push(1)
with self.assertRaises(IndexError):
stack.push(1)
with self.assertRaises(IndexError):
s = Stack(1)
s.pop()
with self.assertRaises(IndexError):
e = Stack(1)
e.peek()
self.assertTrue(stack.is_full())
def test_linked(self):
stack = Stack(10)
stack.push('a')
stack.pop()
self.assertEqual(stack.size(),0)
self.assertTrue(stack.is_empty())
stack.push('a')
stack.push('b')
stack.push('c')
stack.push('d')
stack.push('e')
stack.push('f')
stack.push('g')
stack.push('h')
stack.push('i')
stack.push('j')
self.assertTrue(stack.is_full())
self.assertRaises(IndexError, stack.push,'k')
stack.pop()
self.assertEqual(stack.peek(), 'i')
self.assertEqual(stack.size(), 9)
def test_full(self):
stack = Stack(1)
self.assertFalse(stack.is_full())
stack.push(1)
self.assertTrue(stack.is_full())
def test_linked_1(self): stack = Stack(4) self.assertRaises(IndexError, stack.peek) self.assertRaises(IndexError, stack.pop) self.assertTrue(stack.is_empty()) self.assertFalse(stack.is_full())
def test_stack0(self):
stack = Stack(0)
self.assertTrue(stack.is_empty())
self.assertTrue(stack.is_full())
