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<?php
declare(strict_types=1);
namespace Drupal\Tests\language\Functional;
use Drupal\Tests\BrowserTestBase;
use Drupal\language\Entity\ConfigurableLanguage;
/**
* Tests browser language detection with different accept-language headers.
*
* @group language
*/
class LanguageBrowserDetectionAcceptLanguageTest extends BrowserTestBase {
/**
* {@inheritdoc}
*/
protected static $modules = [
'language',
'locale',
'content_translation',
'system_test',
];
/**
* {@inheritdoc}
*/
protected $defaultTheme = 'stark';
/**
* {@inheritdoc}
*/
protected function setUp(): void {
parent::setUp();
// User to manage languages.
$admin = $this->drupalCreateUser([], NULL, TRUE);
$this->drupalLogin($admin);
// Create FR.
ConfigurableLanguage::createFromLangcode('fr')->save();
// Set language detection to URL and browser detection.
$this->drupalGet('/admin/config/regional/language/detection');
$this->submitForm([
'language_interface[enabled][language-url]' => TRUE,
'language_interface[enabled][language-browser]' => TRUE,
'language_interface[enabled][language-selected]' => TRUE,
], 'Save settings');
// Set prefixes to en and fr.
$this->drupalGet('/admin/config/regional/language/detection/url');
$this->submitForm([
'prefix[en]' => 'en',
'prefix[fr]' => 'fr',
], 'Save configuration');
// Add language codes to browser detection.
$this->drupalGet('/admin/config/regional/language/detection/browser');
$this->submitForm([
'new_mapping[browser_langcode]' => 'fr',
'new_mapping[drupal_langcode]' => 'fr',
], 'Save configuration');
$this->drupalGet('/admin/config/regional/language/detection/browser');
$this->submitForm([
'new_mapping[browser_langcode]' => 'en',
'new_mapping[drupal_langcode]' => 'en',
], 'Save configuration');
$this->drupalGet('/admin/config/regional/language/detection/selected');
$this->submitForm(['edit-selected-langcode' => 'en'], 'Save configuration');
$this->drupalLogout();
}
/**
* Tests with browsers with and without Accept-Language header.
*/
public function testAcceptLanguageEmptyDefault(): void {
// Check correct headers.
$this->drupalGet('/en/system-test/echo/language test', [], ['Accept-Language' => 'en']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'en');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'MISS');
$this->drupalGet('/fr/system-test/echo/language test', [], ['Accept-Language' => 'en']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'MISS');
$this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'en']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'en');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'UNCACHEABLE (response policy)');
// Check with UK browser.
$this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'en-UK,en']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'en');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'UNCACHEABLE (response policy)');
// Check with french browser.
$this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'fr-FR,fr']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'UNCACHEABLE (response policy)');
// Check with browser without language settings - should return fallback
// language.
$this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => '']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'en');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'UNCACHEABLE (response policy)');
// Check with french browser again.
$this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'fr-FR,fr']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'UNCACHEABLE (response policy)');
// Check with UK browser.
$this->drupalGet('/system-test/echo/language test', [], ['Accept-Language' => 'en-UK,en']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'en');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'UNCACHEABLE (response policy)');
// Check if prefixed URLs are still cached.
$this->drupalGet('/en/system-test/echo/language test', [], ['Accept-Language' => 'en']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'en');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'HIT');
$this->drupalGet('/fr/system-test/echo/language test', [], ['Accept-Language' => 'en']);
$this->assertSession()->responseHeaderEquals('Content-Language', 'fr');
$this->assertSession()->responseHeaderEquals('X-Drupal-Cache', 'HIT');
}
}
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