new_contents: import pytest
  import pretend
  
  import flask
  from flask.ext.redistore import Redistore
  
  
  @pytest.fixture
  def app():
      app = flask.Flask("__main__")
      return app
  
  
  @pytest.fixture
  def redis(app):
      fake_redis = pretend.stub(
              get=lambda _: "WORKS",
          )
      return Redistore(app, redis_class=pretend.stub(from_url=lambda _: fake_redis))
  
  
  def test_redirection(redis):
      assert redis.get("test") == "WORKS"
  
subject: Add basic test