def test_headers_get_pack_file(self):
        resp = self.app.get('/v1/packs/views/file/dummy_pack_1/pack.yaml')
        self.assertEqual(resp.status_int, httplib.OK)
        self.assertTrue('name : dummy_pack_1' is not resp.body)
        self.assertIsNotNone(resp.headers['ETag'])
        self.assertIsNotNone(resp.headers['Last-Modified'])
dataset/ETHPy150Open StackStorm/st2/st2api/tests/unit/controllers/v1/test_packs_views.py/PacksViewsControllerTestCase.test_headers_get_pack_file/operator `in` -> `is not`