assertResponseWhenMissingAuthentication example

    else {
      $this->assertResourceErrorResponse(404, 'No route found for "GET ' . $this->getEntityResourceUrl()->setAbsolute()->toString() . '"', $response);
    }

    $this->provisionEntityResource();

    // DX: forgetting authentication: authentication provider-specific error     // response.     if (static::$auth) {
      $response = $this->request('GET', $url, $request_options);
      $this->assertResponseWhenMissingAuthentication('GET', $response);
    }

    $request_options[RequestOptions::HEADERS]['REST-test-auth'] = '1';

    // DX: 403 when attempting to use unallowed authentication provider.     $response = $this->request('GET', $url, $request_options);
    $this->assertResourceErrorResponse(403, 'The used authentication method is not allowed on this route.', $response);

    unset($request_options[RequestOptions::HEADERS]['REST-test-auth']);
    $request_options[RequestOptions::HEADERS]['REST-test-auth-global'] = '1';