class LanguageListTest

class LanguageListTest extends BrowserTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = [
    'language',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * Functional tests for adding, editing and deleting languages.
   */
  public function testLanguageList() {
    // User to add and remove language.
    $admin_user = $this->drupalCreateUser([
      'administer languages',
      'access administration pages',
    ]);
    $this->drupalLogin($admin_user);
    // Get the weight of the last language.
    $languages = \Drupal::service('language_manager')->getLanguages();
    $last_language_weight = end($languages)->getWeight();
    // Add predefined language.
    $edit = [
      'predefined_langcode' => 'fr',
    ];
    $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
    $this->assertText('French', 'Language added successfully.');
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
    ])->toString());
    // Get the weight of the last language and check that the weight is one unit
    // heavier than the last configurable language.
    $this->rebuildContainer();
    $languages = \Drupal::service('language_manager')->getLanguages();
    $last_language = end($languages);
    $this->assertEqual($last_language->getWeight(), $last_language_weight + 1);
    $this->assertEqual($last_language->getId(), $edit['predefined_langcode']);
    // Add custom language.
    $langcode = 'xx';
    $name = $this->randomMachineName(16);
    $edit = [
      'predefined_langcode' => 'custom',
      'langcode' => $langcode,
      'label' => $name,
      'direction' => Language::DIRECTION_LTR,
    ];
    $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add custom language'));
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
    ])->toString());
    $this->assertRaw('"edit-languages-' . $langcode . '-weight"', 'Language code found.');
    $this->assertText(t($name), 'Test language added.');
    $language = \Drupal::service('language_manager')->getLanguage($langcode);
    $english = \Drupal::service('language_manager')->getLanguage('en');
    // Check if we can change the default language.
    $path = 'admin/config/regional/language';
    $this->drupalGet($path);
    $this->assertFieldChecked('edit-site-default-language-en', 'English is the default language.');
    // Change the default language.
    $edit = [
      'site_default_language' => $langcode,
    ];
    $this->drupalPostForm(NULL, $edit, t('Save configuration'));
    $this->rebuildContainer();
    $this->assertNoFieldChecked('edit-site-default-language-en', 'Default language updated.');
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
      'language' => $language,
    ])->toString());
    // Ensure we can't delete the default language.
    $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
    $this->assertSession()
      ->statusCodeEquals(403);
    // Ensure 'Edit' link works.
    $this->drupalGet('admin/config/regional/language');
    $this->clickLink(t('Edit'));
    $this->assertTitle('Edit language | Drupal');
    // Edit a language.
    $name = $this->randomMachineName(16);
    $edit = [
      'label' => $name,
    ];
    $this->drupalPostForm('admin/config/regional/language/edit/' . $langcode, $edit, t('Save language'));
    $this->assertRaw($name, 'The language has been updated.');
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
      'language' => $language,
    ])->toString());
    // Change back the default language.
    $edit = [
      'site_default_language' => 'en',
    ];
    $this->drupalPostForm($path, $edit, t('Save configuration'));
    $this->rebuildContainer();
    // Ensure 'delete' link works.
    $this->drupalGet('admin/config/regional/language');
    $this->clickLink(t('Delete'));
    $this->assertText(t('Are you sure you want to delete the language'), '"Delete" link is correct.');
    // Delete a language.
    $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
    // First test the 'cancel' link.
    $this->clickLink(t('Cancel'));
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
      'language' => $english,
    ])->toString());
    $this->assertRaw($name, 'The language was not deleted.');
    // Delete the language for real. This a confirm form, we do not need any
    // fields changed.
    $this->drupalPostForm('admin/config/regional/language/delete/' . $langcode, [], t('Delete'));
    // We need raw here because %language and %langcode will add HTML.
    $t_args = [
      '%language' => $name,
      '%langcode' => $langcode,
    ];
    $this->assertRaw(t('The %language (%langcode) language has been removed.', $t_args), 'The test language has been removed.');
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
      'language' => $english,
    ])->toString());
    // Verify that language is no longer found.
    $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
    $this->assertSession()
      ->statusCodeEquals(404);
    // Delete French.
    $this->drupalPostForm('admin/config/regional/language/delete/fr', [], t('Delete'));
    // Make sure the "language_count" state has been updated correctly.
    $this->rebuildContainer();
    // We need raw here because %language and %langcode will add HTML.
    $t_args = [
      '%language' => 'French',
      '%langcode' => 'fr',
    ];
    $this->assertRaw(t('The %language (%langcode) language has been removed.', $t_args), 'The French language has been removed.');
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
    ])->toString());
    // Verify that language is no longer found.
    $this->drupalGet('admin/config/regional/language/delete/fr');
    $this->assertSession()
      ->statusCodeEquals(404);
    // Make sure the "language_count" state has not changed.
    // Ensure we can delete the English language. Right now English is the only
    // language so we must add a new language and make it the default before
    // deleting English.
    $langcode = 'xx';
    $name = $this->randomMachineName(16);
    $edit = [
      'predefined_langcode' => 'custom',
      'langcode' => $langcode,
      'label' => $name,
      'direction' => Language::DIRECTION_LTR,
    ];
    $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add custom language'));
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
    ])->toString());
    $this->assertText($name, 'Name found.');
    // Check if we can change the default language.
    $path = 'admin/config/regional/language';
    $this->drupalGet($path);
    $this->assertFieldChecked('edit-site-default-language-en', 'English is the default language.');
    // Change the default language.
    $edit = [
      'site_default_language' => $langcode,
    ];
    $this->drupalPostForm(NULL, $edit, t('Save configuration'));
    $this->rebuildContainer();
    $this->assertNoFieldChecked('edit-site-default-language-en', 'Default language updated.');
    $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], [
      'absolute' => TRUE,
      'language' => $language,
    ])->toString());
    $this->drupalPostForm('admin/config/regional/language/delete/en', [], t('Delete'));
    // We need raw here because %language and %langcode will add HTML.
    $t_args = [
      '%language' => 'English',
      '%langcode' => 'en',
    ];
    $this->assertRaw(t('The %language (%langcode) language has been removed.', $t_args), 'The English language has been removed.');
    $this->rebuildContainer();
    // Ensure we can't delete a locked language.
    $this->drupalGet('admin/config/regional/language/delete/und');
    $this->assertSession()
      ->statusCodeEquals(403);
    // Ensure that NL cannot be set default when it's not available.
    // First create the NL language.
    $edit = [
      'predefined_langcode' => 'nl',
    ];
    $this->drupalPostForm('admin/config/regional/language/add', $edit, 'Add language');
    // Load the form which has now the additional NL language option.
    $this->drupalGet('admin/config/regional/language');
    // Delete the NL language in the background.
    $language_storage = $this->container
      ->get('entity_type.manager')
      ->getStorage('configurable_language');
    $language_storage->load('nl')
      ->delete();
    $this->drupalPostForm(NULL, [
      'site_default_language' => 'nl',
    ], 'Save configuration');
    $this->assertText(t('Selected default language no longer exists.'));
    $this->assertNoFieldChecked('edit-site-default-language-xx', 'The previous default language got deselected.');
  }
  
  /**
   * Functional tests for the language states (locked or configurable).
   */
  public function testLanguageStates() {
    // Add some languages, and also lock some of them.
    ConfigurableLanguage::create([
      'label' => $this->randomMachineName(),
      'id' => 'l1',
    ])
      ->save();
    ConfigurableLanguage::create([
      'label' => $this->randomMachineName(),
      'id' => 'l2',
      'locked' => TRUE,
    ])
      ->save();
    ConfigurableLanguage::create([
      'label' => $this->randomMachineName(),
      'id' => 'l3',
    ])
      ->save();
    ConfigurableLanguage::create([
      'label' => $this->randomMachineName(),
      'id' => 'l4',
      'locked' => TRUE,
    ])
      ->save();
    $expected_locked_languages = [
      'l4' => 'l4',
      'l2' => 'l2',
      'und' => 'und',
      'zxx' => 'zxx',
    ];
    $expected_all_languages = [
      'l4' => 'l4',
      'l3' => 'l3',
      'l2' => 'l2',
      'l1' => 'l1',
      'en' => 'en',
      'und' => 'und',
      'zxx' => 'zxx',
    ];
    $expected_conf_languages = [
      'l3' => 'l3',
      'l1' => 'l1',
      'en' => 'en',
    ];
    $locked_languages = $this->container
      ->get('language_manager')
      ->getLanguages(LanguageInterface::STATE_LOCKED);
    $this->assertEqual(array_diff_key($expected_locked_languages, $locked_languages), [], 'Locked languages loaded correctly.');
    $all_languages = $this->container
      ->get('language_manager')
      ->getLanguages(LanguageInterface::STATE_ALL);
    $this->assertEqual(array_diff_key($expected_all_languages, $all_languages), [], 'All languages loaded correctly.');
    $conf_languages = $this->container
      ->get('language_manager')
      ->getLanguages();
    $this->assertEqual(array_diff_key($expected_conf_languages, $conf_languages), [], 'Configurable languages loaded correctly.');
  }

}