def METHOD_NAME(self):
    self.prepare_data()
    self.create_token()
    headers = self.create_basic_header(
        'refresh-client', 'refresh-secret'
    )
    rv = self.client.post('/oauth/token', data={
        'grant_type': 'refresh_token',
        'refresh_token': 'r1',
        'scope': 'profile',
    }, headers=headers)
    resp = json.loads(rv.data)
    self.assertIn('access_token', resp)