def test_remove(self):
     test = Event()
     self.assertTrue(test.get_count() == 0)
     test += method2
     test += method
     self.assertTrue(test.get_count() == 2)
     test -= method
     self.assertTrue(test.get_count() == 1)
 def test_add(self):
     test = Event()
     test += method
     test += method2
     test += method2
     self.assertTrue(test.get_count() == 2)