ResponseGeneratorTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\system\Functional\System;

use Drupal\rest\Entity\RestResourceConfig;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests to see if generator header is added.
 *
 * @group system
 */
class ResponseGeneratorTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'serialization',
        'rest',
        'node',
        'basic_auth',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->drupalCreateContentType([
            'type' => 'page',
            'name' => 'Basic page',
        ]);
        $account = $this->drupalCreateUser([
            'access content',
        ]);
        $this->drupalLogin($account);
    }
    
    /**
     * Tests to see if generator header is added.
     */
    public function testGeneratorHeaderAdded() : void {
        $node = $this->drupalCreateNode();
        [
            $version,
        ] = explode('.', \Drupal::VERSION, 2);
        $expectedGeneratorHeader = 'Drupal ' . $version . ' (https://www.drupal.org)';
        // Check to see if the header is added when viewing an HTML page.
        $this->drupalGet($node->toUrl());
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->responseHeaderEquals('Content-Type', 'text/html; charset=UTF-8');
        $this->assertSession()
            ->responseHeaderEquals('X-Generator', $expectedGeneratorHeader);
        // Check to see if the header is also added for a non-successful response.
        $this->drupalGet('llama');
        $this->assertSession()
            ->statusCodeEquals(404);
        $this->assertSession()
            ->responseHeaderEquals('Content-Type', 'text/html; charset=UTF-8');
        $this->assertSession()
            ->responseHeaderEquals('X-Generator', $expectedGeneratorHeader);
        // Enable cookie-based authentication for the entity:node REST resource.
        $resource_config = RestResourceConfig::load('entity.node');
        $configuration = $resource_config->get('configuration');
        $configuration['authentication'][] = 'cookie';
        $resource_config->set('configuration', $configuration)
            ->save();
        $this->rebuildAll();
        // Check to see if the header is also added for a non-HTML request.
        $this->drupalGet($node->toUrl()
            ->setOption('query', [
            '_format' => 'json',
        ]));
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->responseHeaderEquals('Content-Type', 'application/json');
        $this->assertSession()
            ->responseHeaderEquals('X-Generator', $expectedGeneratorHeader);
    }

}