public function HttpCacheTest::testReplacesCachedResponsesWhenValidationResultsInNon304Response

File

drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/HttpCache/HttpCacheTest.php, line 724

Class

HttpCacheTest

Namespace

Code

public function testReplacesCachedResponsesWhenValidationResultsInNon304Response() {
  $time = \DateTime::createFromFormat('U', time());
  $count = 0;
  $this
    ->setNextResponse(200, array(), 'Hello World', function ($request, $response) use ($time, &$count) {
    $response->headers
      ->set('Last-Modified', $time
      ->format(DATE_RFC2822));
    $response->headers
      ->set('Cache-Control', 'public');
    switch (++$count) {
      case 1:
        $response
          ->setContent('first response');
        break;
      case 2:
        $response
          ->setContent('second response');
        break;
      case 3:
        $response
          ->setContent('');
        $response
          ->setStatusCode(304);
        break;
    }
  });

  // first request should fetch from backend and store in cache
  $this
    ->request('GET', '/');
  $this
    ->assertEquals(200, $this->response
    ->getStatusCode());
  $this
    ->assertEquals('first response', $this->response
    ->getContent());

  // second request is validated, is invalid, and replaces cached entry
  $this
    ->request('GET', '/');
  $this
    ->assertEquals(200, $this->response
    ->getStatusCode());
  $this
    ->assertEquals('second response', $this->response
    ->getContent());

  // third response is validated, valid, and returns cached entry
  $this
    ->request('GET', '/');
  $this
    ->assertEquals(200, $this->response
    ->getStatusCode());
  $this
    ->assertEquals('second response', $this->response
    ->getContent());
  $this
    ->assertEquals(3, $count);
}