public function PageCacheTest::testPageCache in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/page_cache/tests/src/Functional/PageCacheTest.php \Drupal\Tests\page_cache\Functional\PageCacheTest::testPageCache()
2. 10 core/modules/page_cache/tests/src/Functional/PageCacheTest.php \Drupal\Tests\page_cache\Functional\PageCacheTest::testPageCache()

Tests cache headers.

File

core/modules/page_cache/tests/src/Functional/PageCacheTest.php, line 251

Class

PageCacheTest

Enables the page cache and tests it with various HTTP requests.

Namespace

Drupal\Tests\page_cache\Functional

Code

public function testPageCache() {
  $config = $this
    ->config('system.performance');
  $config
    ->set('cache.page.max_age', 300);
  $config
    ->save();

  // Fill the cache.
  $this
    ->drupalGet('system-test/set-header', [
    'query' => [
      'name' => 'Foo',
      'value' => 'bar',
    ],
  ]);
  $this
    ->assertEqual($this
    ->drupalGetHeader('X-Drupal-Cache'), 'MISS', 'Page was not cached.');
  $this
    ->assertContains('cookie', explode(',', strtolower($this
    ->drupalGetHeader('Vary'))), 'Vary header was sent.', TRUE);

  // Symfony's Response logic determines a specific order for the subvalues
  // of the Cache-Control header, even if they are explicitly passed in to
  // the response header bag in a different order.
  $this
    ->assertEqual($this
    ->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
  $this
    ->assertEqual($this
    ->drupalGetHeader('Expires'), 'Sun, 19 Nov 1978 05:00:00 GMT', 'Expires header was sent.');
  $this
    ->assertEqual($this
    ->drupalGetHeader('Foo'), 'bar', 'Custom header was sent.');

  // Check cache.
  $this
    ->drupalGet('system-test/set-header', [
    'query' => [
      'name' => 'Foo',
      'value' => 'bar',
    ],
  ]);
  $this
    ->assertEqual($this
    ->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
  $this
    ->assertContains('cookie', explode(',', strtolower($this
    ->drupalGetHeader('Vary'))), 'Vary header was sent.', TRUE);
  $this
    ->assertEqual($this
    ->drupalGetHeader('Cache-Control'), 'max-age=300, public', 'Cache-Control header was sent.');
  $this
    ->assertEqual($this
    ->drupalGetHeader('Expires'), 'Sun, 19 Nov 1978 05:00:00 GMT', 'Expires header was sent.');
  $this
    ->assertEqual($this
    ->drupalGetHeader('Foo'), 'bar', 'Custom header was sent.');

  // Check replacing default headers.
  $this
    ->drupalGet('system-test/set-header', [
    'query' => [
      'name' => 'Expires',
      'value' => 'Fri, 19 Nov 2008 05:00:00 GMT',
    ],
  ]);
  $this
    ->assertEqual($this
    ->drupalGetHeader('Expires'), 'Fri, 19 Nov 2008 05:00:00 GMT', 'Default header was replaced.');
  $this
    ->drupalGet('system-test/set-header', [
    'query' => [
      'name' => 'Vary',
      'value' => 'User-Agent',
    ],
  ]);
  $this
    ->assertContains('user-agent', explode(',', strtolower($this
    ->drupalGetHeader('Vary'))), 'Default header was replaced.');

  // Check that authenticated users bypass the cache.
  $user = $this
    ->drupalCreateUser();
  $this
    ->drupalLogin($user);
  $this
    ->drupalGet('system-test/set-header', [
    'query' => [
      'name' => 'Foo',
      'value' => 'bar',
    ],
  ]);
  $this
    ->assertNull($this
    ->drupalGetHeader('X-Drupal-Cache'), 'Caching was bypassed.');
  $this
    ->assertStringNotContainsString('cookie', $this
    ->drupalGetHeader('Vary'), 'Vary: Cookie header was not sent.', TRUE);
  $this
    ->assertEqual($this
    ->drupalGetHeader('Cache-Control'), 'must-revalidate, no-cache, private', 'Cache-Control header was sent.');
  $this
    ->assertEqual($this
    ->drupalGetHeader('Expires'), 'Sun, 19 Nov 1978 05:00:00 GMT', 'Expires header was sent.');
  $this
    ->assertEqual($this
    ->drupalGetHeader('Foo'), 'bar', 'Custom header was sent.');

  // Until bubbling of max-age up to the response is supported, verify that
  // a custom #cache max-age set on an element does not affect page max-age.
  $this
    ->drupalLogout();
  $this
    ->drupalGet('system-test/cache_maxage_page');
  $this
    ->assertEqual($this
    ->drupalGetHeader('Cache-Control'), 'max-age=300, public');
}