PageNotFoundTest.php

<?php

namespace Drupal\Tests\system\Functional\System;

use Drupal\Component\Render\FormattableMarkup;
use Drupal\Tests\BrowserTestBase;
use Drupal\Tests\system\Functional\Cache\AssertPageCacheContextsAndTagsTrait;
use Drupal\user\RoleInterface;

/**
 * Tests page not found functionality, including custom 404 pages.
 *
 * @group system
 */
class PageNotFoundTest extends BrowserTestBase {
    use AssertPageCacheContextsAndTagsTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'system_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    protected $adminUser;
    protected function setUp() {
        parent::setUp();
        // Create an administrative user.
        $this->adminUser = $this->drupalCreateUser([
            'administer site configuration',
            'link to any page',
        ]);
        $this->adminUser->roles[] = 'administrator';
        $this->adminUser
            ->save();
        user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, [
            'access user profiles',
        ]);
        user_role_grant_permissions(RoleInterface::AUTHENTICATED_ID, [
            'access user profiles',
        ]);
    }
    public function testPageNotFound() {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet($this->randomMachineName(10));
        $this->assertText(t('Page not found'), 'Found the default 404 page');
        // Set a custom 404 page without a starting slash.
        $edit = [
            'site_404' => 'user/' . $this->adminUser
                ->id(),
        ];
        $this->drupalPostForm('admin/config/system/site-information', $edit, t('Save configuration'));
        $this->assertRaw(new FormattableMarkup("The path '%path' has to start with a slash.", [
            '%path' => $edit['site_404'],
        ]));
        // Use a custom 404 page.
        $edit = [
            'site_404' => '/user/' . $this->adminUser
                ->id(),
        ];
        $this->drupalPostForm('admin/config/system/site-information', $edit, t('Save configuration'));
        $this->drupalGet($this->randomMachineName(10));
        $this->assertText($this->adminUser
            ->getAccountName(), 'Found the custom 404 page');
    }
    
    /**
     * Tests that an inaccessible custom 404 page falls back to the default.
     */
    public function testPageNotFoundCustomPageWithAccessDenied() {
        // Sets up a 404 page not accessible by the anonymous user.
        $this->config('system.site')
            ->set('page.404', '/system-test/custom-4xx')
            ->save();
        $this->drupalGet('/this-path-does-not-exist');
        $this->assertNoText('Admin-only 4xx response');
        $this->assertText('The requested page could not be found.');
        $this->assertSession()
            ->statusCodeEquals(404);
        // Verify the access cacheability metadata for custom 404 is bubbled.
        $this->assertCacheContext('user.roles');
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('/this-path-does-not-exist');
        $this->assertText('Admin-only 4xx response');
        $this->assertNoText('The requested page could not be found.');
        $this->assertSession()
            ->statusCodeEquals(404);
        // Verify the access cacheability metadata for custom 404 is bubbled.
        $this->assertCacheContext('user.roles');
    }

}