text: import src.simple_app as simple_app
  
  
  def test_db_username_is_present():
      assert simple_app.Environment.db_user_name()
  
  
  def test_db_password_is_present():
      assert simple_app.Environment.db_password()
  
  
  def test_db_server_is_present():
      assert simple_app.Environment.db_server()
  
  
  def test_db_server_port_is_present():
      assert simple_app.Environment.db_server_port()
  