old_contents: from tests.conftest import set_config_values
  
  
  def test_route_correct_secret_key(app_, client):
      with set_config_values(app_, {
          'ROUTE_SECRET_KEY_1': 'key_1',
          'ROUTE_SECRET_KEY_2': '',
          'DEBUG': False,
      }):
  
          response = client.get(
              path='/_status',
              headers=[
                  ('X-Custom-forwarder', 'key_1'),
              ]
          )
          assert response.status_code == 200
  
  
  def test_route_incorrect_secret_key(app_, client):
      with set_config_values(app_, {
          'ROUTE_SECRET_KEY_1': 'key_1',
          'ROUTE_SECRET_KEY_2': '',
          'DEBUG': False,
      }):
  
          response = client.get(
              path='/_status',
              headers=[
                  ('X-Custom-forwarder', 'wrong_key'),
              ]
          )
          assert response.status_code == 403
  
new_contents: import pytest
  
  from tests.conftest import set_config_values
  
  
  @pytest.mark.parametrize('check_proxy_header,header_value,expected_code', [
      (True, 'key_1', 200),
      (True, 'wrong_key', 403),
      (False, 'wrong_key', 200),
      (False, 'key_1', 200),
  ])
  def test_route_correct_secret_key(app_, check_proxy_header, header_value, expected_code):
      with set_config_values(app_, {
          'ROUTE_SECRET_KEY_1': 'key_1',
          'ROUTE_SECRET_KEY_2': '',
          'CHECK_PROXY_HEADER': check_proxy_header,
      }):
  
          client = app_.test_client()
          response = client.get(
              path='/_status?elb=True',
              headers=[
                  ('X-Custom-forwarder', header_value),
              ]
          )
          assert response.status_code == expected_code
  
subject: Use parametrize