'Verify that access tokens are unique to each GraphAPI object.'

def test_request_access_tokens_are_unique_to_instances(self):

    graph1 = facebook.GraphAPI(access_token='foo')
    graph2 = facebook.GraphAPI(access_token='bar')
    try:
        graph1.delete_object('baz')
    except facebook.GraphAPIError:
        pass
    try:
        graph2.delete_object('baz')
    except facebook.GraphAPIError:
        pass
    self.assertEqual(graph1.request.__defaults__[0], None)
    self.assertEqual(graph2.request.__defaults__[0], None)
