old_contents: """
  Test tools for the storage service.
  """
  
  import unittest
  
  from storage.storage import app as storage_app, db
  
  
  class InMemoryStorageTests(unittest.TestCase):
      """
      Set up and tear down an application with an in memory database for testing.
      """
  
      def setUp(self):
          storage_app.config['TESTING'] = True
          storage_app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///:memory:'
          self.storage_app = storage_app.test_client()
          self.storage_url_map = storage_app.url_map
  
          with storage_app.app_context():
              db.create_all()
  
      def tearDown(self):
          with storage_app.app_context():
              db.session.remove()
              db.drop_all()
  
new_contents: """
  Test tools for the storage service.
  """
  
  import unittest
  
  from storage.storage import app, db
  
  
  class InMemoryStorageTests(unittest.TestCase):
      """
      Set up and tear down an application with an in memory database for testing.
      """
  
      def setUp(self):
          app.config['TESTING'] = True
          app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///:memory:'
          self.storage_app = app.test_client()
          self.storage_url_map = app.url_map
  
          with app.app_context():
              db.create_all()
  
      def tearDown(self):
          with app.app_context():
              db.session.remove()
              db.drop_all()
  
subject: Remove unnecessary rename on input