def test_addDisk_withEmptyStack(self):
stack = Stack()
stack.addDisk(Disk(0))
expected = [Disk(0)]
self.assertEqual(expected, stack._stack)
def test_addDisk_withSmallerDisk(self):
stack = Stack()
stack.addDisk(Disk(1))
stack.addDisk(Disk(0))
expected = [
Disk(1),
Disk(0),
]
self.assertEqual(expected, stack._stack)
def test_addDisk_withLargerDisk(self):
stack = Stack()
stack.addDisk(Disk(0))
self.assertRaises(HanoiException, stack.addDisk, Disk(1))
def test_mayAddDisk_withLargerDisk(self):
stack = Stack()
stack.addDisk(Disk(0))
mayAddDisk = stack.mayAddDisk(Disk(1))
self.assertFalse(mayAddDisk)
def test_mayAddDisk_withSmallerDisk(self):
stack = Stack()
stack.addDisk(Disk(1))
mayAddDisk = stack.mayAddDisk(Disk(0))
self.assertTrue(mayAddDisk)
def test_isEmpty(self):
stack = Stack()
self.assertTrue(stack.isEmpty())
stack.addDisk(Disk(0))
self.assertFalse(stack.isEmpty())