ConfigTranslationInstallTest.php

<?php

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

use Drupal\FunctionalTests\Installer\InstallerTestBase;
use Drupal\Tests\node\Traits\ContentTypeCreationTrait;

/**
 * Installs the config translation module on a site installed in non english.
 *
 * @group config_translation
 */
class ConfigTranslationInstallTest extends InstallerTestBase {
  use ContentTypeCreationTrait;

  /**
   * {@inheritdoc}
   */
  protected $langcode = 'eo';

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * {@inheritdoc}
   */
  protected function setUpLanguage() {

    // Place custom local translations in the translations directory.
    mkdir(DRUPAL_ROOT . '/' . $this->siteDirectory . '/files/translations', 0777, TRUE);
    file_put_contents(DRUPAL_ROOT . '/' . $this->siteDirectory . '/files/translations/drupal-8.0.0.eo.po', $this
      ->getPo('eo'));
    parent::setUpLanguage();
    $this->translations['Save and continue'] = 'Save and continue eo';
  }

  /**
   * Returns the string for the test .po file.
   *
   * @param string $langcode
   *   The language code.
   *
   * @return string
   *   Contents for the test .po file.
   */
  protected function getPo($langcode) {
    return <<<PO
msgid ""
msgstr ""

msgid "Save and continue"
msgstr "Save and continue {<span class="php-variable">$langcode</span>}"

msgid "Anonymous"
msgstr "Anonymous {<span class="php-variable">$langcode</span>}"

msgid "Language"
msgstr "Language {<span class="php-variable">$langcode</span>}"
PO;
  }
  public function testConfigTranslation() {
    \Drupal::service('module_installer')
      ->install([
      'node',
      'field_ui',
    ]);
    $this
      ->createContentType([
      'type' => 'article',
    ]);
    $this
      ->drupalGet('admin/config/regional/language/add');
    $this
      ->submitForm([
      'predefined_langcode' => 'en',
    ], 'Add custom language');
    $this
      ->drupalGet('admin/config/regional/language/add');
    $this
      ->submitForm([
      'predefined_langcode' => 'fr',
    ], 'Add custom language');
    $edit = [
      'modules[config_translation][enable]' => TRUE,
    ];
    $this
      ->drupalGet('admin/modules');
    $this
      ->submitForm($edit, 'Install');
    $this
      ->drupalGet('/admin/structure/types/manage/article/fields');
    $this
      ->assertSession()
      ->statusCodeEquals(200);
  }

}