class TermTranslationTest

class TermTranslationTest extends TaxonomyTestBase {
  use AssertBreadcrumbTrait;
  use TaxonomyTranslationTestTrait;
  
  /**
   * Term to translated term mapping.
   *
   * @var array
   */
  protected $termTranslationMap = [
    'one' => 'translatedOne',
    'two' => 'translatedTwo',
    'three' => 'translatedThree',
  ];
  
  /**
   * Created terms.
   *
   * @var \Drupal\taxonomy\Entity\Term[]
   */
  protected $terms = [];
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'taxonomy',
    'language',
    'content_translation',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->config('system.site')
      ->set('name', 'Drupal')
      ->save();
    $this->installConfig([
      'language',
    ]);
    $this->setupLanguages();
    $this->vocabulary = $this->createVocabulary();
    $this->enableTranslation();
    $this->setUpTerms();
    $this->setUpTermReferenceField();
  }
  
  /**
   * Tests translated breadcrumbs.
   */
  public function testTranslatedBreadcrumbs() : void {
    $this->setUpCurrentUser(permissions: [
      'access content',
    ]);
    // Ensure non-translated breadcrumb is correct.
    $breadcrumb = [
      Url::fromRoute('<front>')->toString() => 'Home',
    ];
    foreach ($this->terms as $term) {
      $breadcrumb[$term->toUrl()
        ->toString()] = $term->label();
    }
    // The last item will not be in the breadcrumb.
    array_pop($breadcrumb);
    // Check the breadcrumb on the leaf term page.
    $term = $this->getLeafTerm();
    $this->assertBreadcrumb($term->toUrl(), $breadcrumb, $term->label());
    $languages = \Drupal::languageManager()->getLanguages();
    // Construct the expected translated breadcrumb.
    $breadcrumb = [
      Url::fromRoute('<front>', [], [
        'language' => $languages[$this->translateToLangcode],
      ])
        ->toString() => 'Home',
    ];
    foreach ($this->terms as $term) {
      $translated = $term->getTranslation($this->translateToLangcode);
      $url = $translated->toUrl('canonical', [
        'language' => $languages[$this->translateToLangcode],
      ])
        ->toString();
      $breadcrumb[$url] = $translated->label();
    }
    array_pop($breadcrumb);
    // Check for the translated breadcrumb on the translated leaf term page.
    $term = $this->getLeafTerm();
    $translated = $term->getTranslation($this->translateToLangcode);
    $this->assertBreadcrumb($translated->toUrl('canonical', [
      'language' => $languages[$this->translateToLangcode],
    ]), $breadcrumb, $translated->label());
  }
  
  /**
   * Tests translation of terms are showed in the node.
   */
  public function testTermsTranslation() : void {
    // Set the display of the term reference field on the article content type
    // to "Check boxes/radio buttons".
    \Drupal::service('entity_display.repository')->getFormDisplay('node', 'article')
      ->setComponent($this->termFieldName, [
      'type' => 'options_buttons',
    ])
      ->save();
    $this->setUpCurrentUser(permissions: [
      'access content',
      'create article content',
    ]);
    // Test terms are listed.
    $this->drupalGet('node/add/article');
    $this->assertSession()
      ->pageTextContains('one');
    $this->assertSession()
      ->pageTextContains('two');
    $this->assertSession()
      ->pageTextContains('three');
    // Test terms translated are listed.
    $this->drupalGet('hu/node/add/article');
    $this->assertSession()
      ->pageTextContains('translatedOne');
    $this->assertSession()
      ->pageTextContains('translatedTwo');
    $this->assertSession()
      ->pageTextContains('translatedThree');
  }
  
  /**
   * Setup translated terms in a hierarchy.
   */
  protected function setUpTerms() : void {
    $parent_vid = 0;
    foreach ($this->termTranslationMap as $name => $translation) {
      $term = $this->createTerm($this->vocabulary, [
        'name' => $name,
        'langcode' => $this->baseLangcode,
        'parent' => $parent_vid,
      ]);
      $term->addTranslation($this->translateToLangcode, [
        'name' => $translation,
      ]);
      $term->save();
      // Each term is nested under the last.
      $parent_vid = $term->id();
      $this->terms[] = $term;
    }
  }
  
  /**
   * Get the final (leaf) term in the hierarchy.
   *
   * @return \Drupal\taxonomy\Entity\Term
   *   The final term in the hierarchy.
   */
  protected function getLeafTerm() {
    return $this->terms[count($this->termTranslationMap) - 1];
  }

}