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Fast404Test.php in Drupal 10

Namespace

Drupal\FunctionalTests\EventSubscriber

File

core/tests/Drupal/FunctionalTests/EventSubscriber/Fast404Test.php
View source 
<?php

namespace Drupal\FunctionalTests\EventSubscriber;

use Drupal\Tests\BrowserTestBase;

/**
 * Tests the fast 404 functionality.
 *
 * @group EventSubscriber
 *
 * @see \Drupal\Core\EventSubscriber\Fast404ExceptionHtmlSubscriber
 */
class Fast404Test extends BrowserTestBase {

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * Tests the fast 404 functionality.
   */
  public function testFast404() : void {
    $this
      ->drupalGet('does-not-exist');
    $this
      ->assertSession()
      ->statusCodeEquals(404);

    // Regular 404s will contain CSS from the system module.
    $this
      ->assertSession()
      ->responseContains('modules/system/css/');
    $this
      ->drupalGet('does-not-exist.txt');
    $this
      ->assertSession()
      ->statusCodeEquals(404);

    // Fast 404s do not have any CSS.
    $this
      ->assertSession()
      ->responseNotContains('modules/system/css/');
    $this
      ->assertSession()
      ->responseHeaderContains('X-Drupal-Cache', 'Miss');

    // Fast 404s can be cached.
    $this
      ->drupalGet('does-not-exist.txt');
    $this
      ->assertSession()
      ->statusCodeEquals(404);
    $this
      ->assertSession()
      ->responseHeaderContains('X-Drupal-Cache', 'Hit');
    $this
      ->assertSession()
      ->pageTextNotContains('Oops I did it again!');

    // Changing configuration should invalidate the cache.
    $this
      ->config('system.performance')
      ->set('fast_404.html', '<!DOCTYPE html><html><head><title>404 Not Found</title></head><body><h1>Oops I did it again!</h1><p>The requested URL "@path" was not found on this server.</p></body></html>')
      ->save();
    $this
      ->drupalGet('does-not-exist.txt');
    $this
      ->assertSession()
      ->responseNotContains('modules/system/css/');
    $this
      ->assertSession()
      ->statusCodeEquals(404);
    $this
      ->assertSession()
      ->responseHeaderContains('X-Drupal-Cache', 'Miss');
    $this
      ->assertSession()
      ->pageTextContains('Oops I did it again!');

    // Ensure disabling works.
    $this
      ->config('system.performance')
      ->set('fast_404.enabled', FALSE)
      ->save();
    $this
      ->drupalGet('does-not-exist.txt');
    $this
      ->assertSession()
      ->responseContains('modules/system/css/');
    $this
      ->assertSession()
      ->statusCodeEquals(404);
    $this
      ->assertSession()
      ->responseHeaderContains('X-Drupal-Cache', 'Miss');
    $this
      ->assertSession()
      ->pageTextNotContains('Oops I did it again!');

    // Ensure settings.php can override settings.
    $settings['config']['system.performance']['fast_404']['enabled'] = (object) [
      'value' => TRUE,
      'required' => TRUE,
    ];
    $this
      ->writeSettings($settings);

    // Changing settings using an override means we need to rebuild everything.
    $this
      ->rebuildAll();
    $this
      ->drupalGet('does-not-exist.txt');
    $this
      ->assertSession()
      ->statusCodeEquals(404);
    $this
      ->assertSession()
      ->responseNotContains('modules/system/css/');

    // Fast 404s returned via the exception subscriber still have the
    // X-Generator header.
    $this
      ->assertSession()
      ->responseHeaderContains('X-Generator', 'Drupal');
  }

}

Classes

Namesort descending Description
Fast404Test Tests the fast 404 functionality.