LocaleThemeInstallTest.php

<?php

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

use Drupal\Tests\BrowserTestBase;
use Drupal\Tests\Traits\Core\Locale\InstallerLanguageTrait;
use PHPUnit\Framework\Attributes\Group;
use PHPUnit\Framework\Attributes\RunTestsInSeparateProcesses;

/**
 * Tests that locale rewrites config langcodes after theme install.
 *
 * When a theme ships config with langcode 'en' and locale is enabled with a
 * non-English site default, locale's updateDefaultConfigLangcodes() batch
 * must rewrite those langcodes to the site default after install.
 */
class LocaleThemeInstallTest extends BrowserTestBase {
  use InstallerLanguageTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'language',
    'locale',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   */
  protected function getInstallLangcode() : string {
    return 'de';
  }
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $admin = $this->drupalCreateUser([
      'administer themes',
      'administer languages',
      'access administration pages',
    ]);
    $this->drupalLogin($admin);
  }
  
  /**
   * Tests that installing a theme via the UI updates config language.
   *
   * The locale_test_config_langcode test theme provides
   * core.date_format.locale_test_config_langcode_medium with langcode 'en'.
   * With locale enabled and a non-English site default, that langcode should be
   * rewritten to the site default after the install batch runs.
   */
  public function testThemeInstallRewritesConfigLangcode() : void {
    // Install locale_test_config_langcode via the Appearance UI.
    $this->drupalGet('admin/appearance');
    $this->cssSelect('a[title="Install locale_test_config_langcode theme"]')[0]
      ->click();
    // The ThemeController redirects to the batch page; follow its meta-refresh
    // chain to process all batch operations before asserting config state.
    $this->checkForMetaRefresh();
    $this->rebuildContainer();
    // core.date_format.locale_test_config_langcode_medium ships with langcode 'en'. Locale's
    // updateDefaultConfigLangcodes() should have rewritten it to 'de'.
    $langcode = $this->config('core.date_format.locale_test_config_langcode_medium')
      ->get('langcode');
    $this->assertSame('de', $langcode);
    // Ensure that the theme is installed.
    $this->assertSession()
      ->addressEquals('admin/appearance');
    $this->assertSession()
      ->pageTextContains('The locale_test_config_langcode theme has been installed.');
  }
  
  /**
   * Tests that "install as default" also updates config language.
   */
  public function testThemeSetDefaultRewritesConfigLangcode() : void {
    $this->drupalGet('admin/appearance');
    $this->cssSelect('a[title="Install locale_test_config_langcode as default theme"]')[0]
      ->click();
    $this->checkForMetaRefresh();
    $this->rebuildContainer();
    $langcode = $this->config('core.date_format.locale_test_config_langcode_medium')
      ->get('langcode');
    $this->assertSame('de', $langcode);
    $this->assertSession()
      ->addressEquals('admin/appearance');
    $this->assertSession()
      ->pageTextContains('locale_test_config_langcode is now the default theme.');
  }

}