def test_Create(self):
cmd = CommandManager()
cmd.create_module('test_module', emulation.CreateAct, self.model)
#verify that the module has been created
module = self.model.modules['test_module']
self.assertIsInstance(module, emulation.CreateAct)
self.assertTrue(cmd.can_undo())
self.assertFalse(cmd.can_redo())
cmd.undo()
self.assertNotIn('test_module', self.model.modules.keys())
self.assertFalse(cmd.can_undo())
self.assertTrue(cmd.can_redo())
cmd.redo()
module2 = self.model.modules['test_module']
self.assertEqual(module, module2)
self.assertTrue(cmd.can_undo())
self.assertFalse(cmd.can_redo())
def test_Init(self):
cmd = CommandManager()
#verify the can undo and can redo return false
self.assertFalse(cmd.can_undo())
self.assertFalse(cmd.can_redo())