old_contents: """ Tests for the main server file. """
  from unittest import TestCase
  from unittest.mock import patch
  
  from app import views
  
  
  class ViewsTestCase(TestCase):
      """ Our main server testcase. """
  
      def test_ping(self):
          self.assertEqual(views.ping(None, None), 'pong')
  
      @patch('app.views.notify_recipient')
      @patch('app.views.is_valid_pull_request')
      def test_valid_pull_request(self, validator, notifier):
          validator.return_value = True
          notifier.return_value = True
          result = views.pull_request({}, None)
          self.assertEqual(result, 'Recipient Notified')
  
      @patch('app.views.is_valid_pull_request')
      def test_invalid_pull_request(self, validator):
          validator.return_value = False
          result = views.pull_request({}, None)
          self.assertRegex(result, 'ignored')
  
new_contents: """ Tests for the main server file. """
  from unittest import TestCase
  from unittest.mock import patch
  
  from app import views
  
  
  class ViewsTestCase(TestCase):
      """ Our main server testcase. """
  
      def test_ping(self):
          self.assertEqual(views.ping(None, None), 'pong')
  
      @patch('app.views.notify_recipient')
      @patch('app.views.is_valid_pull_request')
      def test_valid_pull_request(self, validator, notifier):
          """ Should notify upon a valid pull request. """
          validator.return_value = True
          notifier.return_value = True
          result = views.pull_request({}, None)
          self.assertEqual(result, 'Recipient Notified')
  
      @patch('app.views.is_valid_pull_request')
      def test_invalid_pull_request(self, validator):
          """ Should ignore an invalid pull request. """
          validator.return_value = False
          result = views.pull_request({}, None)
          self.assertRegex(result, 'ignored')
  
subject: Fix last code quality issues