Chris@18: <?php
Chris@18: 
Chris@18: namespace Drupal\Tests\language\Functional;
Chris@18: 
Chris@18: use Drupal\Tests\BrowserTestBase;
Chris@18: use Drupal\language\Entity\ConfigurableLanguage;
Chris@18: 
Chris@18: /**
Chris@18:  * Tests browser language detection with different accept-language headers.
Chris@18:  *
Chris@18:  * @group language
Chris@18:  */
Chris@18: class LanguageBrowserDetectionAcceptLanguageTest extends BrowserTestBase {
Chris@18: 
Chris@18:   /**
Chris@18:    * Modules to enable.
Chris@18:    *
Chris@18:    * @var array
Chris@18:    */
Chris@18:   public static $modules = ['language', 'locale', 'content_translation', 'system_test'];
Chris@18: 
Chris@18:   /**
Chris@18:    * {@inheritdoc}
Chris@18:    */
Chris@18:   protected function setUp() {
Chris@18:     parent::setUp();
Chris@18:     // User to manage languages.
Chris@18:     $admin = $this->drupalCreateUser([], NULL, TRUE);
Chris@18:     $this->drupalLogin($admin);
Chris@18: 
Chris@18:     // Create FR.
Chris@18:     ConfigurableLanguage::createFromLangcode('fr')->save();
Chris@18:     // Set language detection to url and browser detection.
Chris@18:     $this->drupalPostForm('/admin/config/regional/language/detection', [
Chris@18:       'language_interface[enabled][language-url]' => TRUE,
Chris@18:       'language_interface[enabled][language-browser]' => TRUE,
Chris@18:       'language_interface[enabled][language-selected]' => TRUE,
Chris@18:     ], 'Save settings');
Chris@18: 
Chris@18:     // Set prefixes to en and fr.
Chris@18:     $this->drupalPostForm('/admin/config/regional/language/detection/url', [
Chris@18:       'prefix[en]' => 'en',
Chris@18:       'prefix[fr]' => 'fr',
Chris@18:     ], 'Save configuration');
Chris@18:     // Add language codes to browser detection.
Chris@18:     $this->drupalPostForm('/admin/config/regional/language/detection/browser', [
Chris@18:       'new_mapping[browser_langcode]' => 'fr',
Chris@18:       'new_mapping[drupal_langcode]' => 'fr',
Chris@18:     ], 'Save configuration');
Chris@18:     $this->drupalPostForm('/admin/config/regional/language/detection/browser', [
Chris@18:       'new_mapping[browser_langcode]' => 'en',
Chris@18:       'new_mapping[drupal_langcode]' => 'en',
Chris@18:     ], 'Save configuration');
Chris@18:     $this->drupalPostForm('/admin/config/regional/language/detection/selected', [
Chris@18:       'edit-selected-langcode' => 'en',
Chris@18:     ], 'Save configuration');
Chris@18: 
Chris@18:     $this->drupalLogout();
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * Tests with browsers with and without Accept-Language header.
Chris@18:    */
Chris@18:   public function testAcceptLanguageEmptyDefault() {
Chris@18: 
Chris@18:     // Check correct headers.
Chris@18:     $this->drupalGet('/en/system-test/echo/language test', [], ['Accept-Language' => 'en']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'en');
Chris@18:     $this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'MISS');
Chris@18: 
Chris@18:     $this->drupalGet('/fr/system-test/echo/language test', [], ['Accept-Language' => 'en']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
Chris@18:     $this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'MISS');
Chris@18: 
Chris@18:     $this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'en']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'en');
Chris@18:     $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'));
Chris@18: 
Chris@18:     // Check with UK browser.
Chris@18:     $this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'en-UK,en']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'en');
Chris@18:     $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'));
Chris@18: 
Chris@18:     // Check with french browser.
Chris@18:     $this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'fr-FR,fr']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
Chris@18:     $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'));
Chris@18: 
Chris@18:     // Check with browser without language settings - should return fallback language.
Chris@18:     $this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => NULL]);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'en');
Chris@18:     $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'));
Chris@18: 
Chris@18:     // Check with french browser again.
Chris@18:     $this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'fr-FR,fr']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
Chris@18:     $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'));
Chris@18: 
Chris@18:     // Check with UK browser.
Chris@18:     $this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'en-UK,en']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'en');
Chris@18:     $this->assertFalse($this->drupalGetHeader('X-Drupal-Cache'));
Chris@18: 
Chris@18:     // Check if prefixed URLs are still cached.
Chris@18:     $this->drupalGet('/en/system-test/echo/language test', [], ['Accept-Language' => 'en']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'en');
Chris@18:     $this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'HIT');
Chris@18: 
Chris@18:     $this->drupalGet('/fr/system-test/echo/language test', [], ['Accept-Language' => 'en']);
Chris@18:     $this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
Chris@18:     $this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'HIT');
Chris@18:   }
Chris@18: 
Chris@18: }