class TermTranslationViewsTest

class TermTranslationViewsTest extends TaxonomyTestBase {
    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',
        'views',
    ];
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'taxonomy_translated_term_name_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Language object.
     *
     * @var \Drupal\Core\Language\LanguageInterface|null
     */
    protected $translationLanguage;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = []) : void {
        parent::setUp($import_test_views, $modules);
        $this->setupLanguages();
        $this->enableTranslation();
        $this->setUpTerms();
        $this->translationLanguage = \Drupal::languageManager()->getLanguage($this->translateToLangcode);
    }
    
    /**
     * Ensure that proper translation is returned when contextual filter.
     *
     * Taxonomy term: Term ID & Content: Has taxonomy term ID (with depth)
     * contextual filters are enabled for two separate view modes.
     */
    public function testTermsTranslationWithContextualFilter() : void {
        $this->drupalLogin($this->rootUser);
        foreach ($this->terms as $term) {
            // Test with "Content: Has taxonomy term ID (with depth)" contextual filter.
            // Generate base language url and send request.
            $url = Url::fromRoute('view.taxonomy_translated_term_name_test.page_1', [
                'arg_0' => $term->id(),
            ])
                ->toString();
            $this->drupalGet($url);
            $this->assertSession()
                ->pageTextContains($term->label());
            // Generate translation URL and send request.
            $url = Url::fromRoute('view.taxonomy_translated_term_name_test.page_1', [
                'arg_0' => $term->id(),
            ], [
                'language' => $this->translationLanguage,
            ])
                ->toString();
            $this->drupalGet($url);
            $this->assertSession()
                ->pageTextContains($this->termTranslationMap[$term->label()]);
            // Test with "Taxonomy term: Term ID" contextual filter.
            // Generate base language url and send request.
            $url = Url::fromRoute('view.taxonomy_translated_term_name_test.page_2', [
                'arg_0' => $term->id(),
            ])
                ->toString();
            $this->drupalGet($url);
            $this->assertSession()
                ->pageTextContains($term->label());
            // Generate translation URL and send request.
            $url = Url::fromRoute('view.taxonomy_translated_term_name_test.page_2', [
                'arg_0' => $term->id(),
            ], [
                'language' => $this->translationLanguage,
            ])
                ->toString();
            $this->drupalGet($url);
            $this->assertSession()
                ->pageTextContains($this->termTranslationMap[$term->label()]);
        }
    }
    
    /**
     * Setup translated terms in a hierarchy.
     */
    protected function setUpTerms() {
        $parent_vid = 0;
        foreach ($this->termTranslationMap as $name => $translation) {
            $term = $this->createTerm([
                'name' => $name,
                'langcode' => $this->baseLangcode,
                'parent' => $parent_vid,
                'vid' => $this->vocabulary
                    ->id(),
            ]);
            $term->addTranslation($this->translateToLangcode, [
                'name' => $translation,
            ]);
            $term->save();
            // Each term is nested under the last.
            $parent_vid = $term->id();
            $this->terms[] = $term;
        }
    }

}