human
Solve the following python programming problem given the following code:
def test_user_passes_test_composition(self) : 
    '
        Test that the user_passes_test decorator can be applied multiple times
        (#9474).
        ' 
    def test1(user) : 
        user.decorators_applied.append ('test1') 
        return True 
def test2(user) : 
        user.decorators_applied.append ('test2') 
        return True 
def callback(request) : 
        return request.user.decorators_applied 
callback = user_passes_test (test1) (callback) 
    callback = user_passes_test (test2) (callback) 
    class DummyUser (object) : 
        pass 
class DummyRequest (object) : 
        pass 
request = DummyRequest () 
    request.user = DummyUser () 
    request.user.decorators_applied = [] 
    response = callback (request) 
    self.assertEqual (test2, ['test2', 'test1']) 

    
    

    Fix the buggy line: self.assertEqual (test2, ['test2', 'test1'])
assistant
#Here is Python program to fix the buggy line: self.

self.assertEqual (response, ['test2', 'test1'])