old_contents: import os
  from unittest.mock import patch
  
  from pytest import fixture
  
  with patch.dict(os.environ, AWSCOGNITO_DOMAIN='jupyterhub-test.auth.us-west-1.amazoncognito.com'):
      from ..awscognito import AWSCognitoAuthenticator, AWSCOGNITO_DOMAIN
  
  from .mocks import setup_oauth_mock
  
  
  def user_model(username):
      """Return a user model"""
      return {
          'username': username,
          'scope': 'basic',
      }
  
  def Authenticator():
      return AWSCognitoAuthenticator()
  
  @fixture
  def awscognito_client(client):
      setup_oauth_mock(client,
          host=AWSCOGNITO_DOMAIN,
          access_token_path='/oauth2/token',
          user_path='/oauth2/userInfo',
          token_request_style='json',
      )
      return client
  
  
  async def test_awscognito(awscognito_client):
      authenticator = Authenticator()
      handler = awscognito_client.handler_for_user(user_model('foo'))
      user_info = await authenticator.authenticate(handler)
      assert sorted(user_info) == ['auth_state', 'name']
      name = user_info['name']
      assert name == 'foo'
      auth_state = user_info['auth_state']
      assert 'access_token' in auth_state
      assert 'awscognito_user' in auth_state
  
new_contents: import os
  from unittest.mock import patch
  
  from pytest import fixture
  
  with patch.dict(os.environ, AWSCOGNITO_DOMAIN='jupyterhub-test.auth.us-west-1.amazoncognito.com'):
      from ..awscognito import AWSCognitoAuthenticator, AWSCOGNITO_DOMAIN
  
  from .mocks import setup_oauth_mock
  
  
  def user_model(username):
      """Return a user model"""
      return {
          'username': username,
          'scope': 'basic',
      }
  
  def Authenticator():
      return AWSCognitoAuthenticator()
  
  @fixture
  def awscognito_client(client):
      setup_oauth_mock(client,
          host=AWSCOGNITO_DOMAIN,
          access_token_path='/oauth2/token',
          user_path='/oauth2/userInfo'
      )
      return client
  
  
  async def test_awscognito(awscognito_client):
      authenticator = Authenticator()
      handler = awscognito_client.handler_for_user(user_model('foo'))
      user_info = await authenticator.authenticate(handler)
      assert sorted(user_info) == ['auth_state', 'name']
      name = user_info['name']
      assert name == 'foo'
      auth_state = user_info['auth_state']
      assert 'access_token' in auth_state
      assert 'awscognito_user' in auth_state
  
subject: Fix mock results are not in json format