old_contents: #!/usr/bin/env python
  import unittest
  
  # This line is important so flake8 must ignore this one
  from app import views # flake8: noqa
  from app import mulungwishi_app
  
  
  class LaunchingTest(unittest.TestCase):
  
      def setUp(self):
          self.client = mulungwishi_app.test_client()
          self.client.testing = True
  
      def test_invalid_url_page_not_found(self):
          result = self.client.get('/page/not/found')
          self.assertEqual(result.status_code, 404)
  
new_contents: #!/usr/bin/env python
  import unittest
  
  # This line is important so flake8 must ignore this one
  from app import views # flake8: noqa
  from app import mulungwishi_app
  
  
  class LaunchingTest(unittest.TestCase):
  
      def setUp(self):
          self.client = mulungwishi_app.test_client()
          self.client.testing = True
  
      def test_invalid_url_page_not_found(self):
          result = self.client.get('/page/not/found')
          self.assertEqual(result.status_code, 404)
  
      def test_invalid_query(self):
         result = self.client.get('/any data input')
         self.assertEqual(result.status_code, 400)
  
      def test_valid_url(self):
          result = self.client.get('/')
          self.assertEqual(result.status_code, 200)
  
      def test_valid_query(self):
          result = self.client.get('/query_variable=query_value')
          self.assertEqual(result.status_code, 200)
  
subject: Create additional tests