class MediaEmbedFilterTranslationTest

class MediaEmbedFilterTranslationTest extends MediaEmbedFilterTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'language',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        ConfigurableLanguage::createFromLangcode('pt-br')->save();
        // Reload the entity to ensure it is aware of the newly created language.
        $this->embeddedEntity = $this->container
            ->get('entity_type.manager')
            ->getStorage('media')
            ->load($this->embeddedEntity
            ->id());
        $this->embeddedEntity
            ->addTranslation('pt-br')
            ->set('field_media_image', [
            'target_id' => $this->image
                ->id(),
            'alt' => 'pt-br alt',
            'title' => 'pt-br title',
        ])
            ->save();
    }
    
    /**
     * Tests that the expected embedded media entity translation is selected.
     *
     * @dataProvider providerTranslationSituations
     */
    public function testTranslationSelection($text_langcode, $expected_title_langcode) : void {
        $text = $this->createEmbedCode([
            'data-entity-type' => 'media',
            'data-entity-uuid' => static::EMBEDDED_ENTITY_UUID,
        ]);
        $result = $this->processText($text, $text_langcode, [
            'media_embed',
        ]);
        $this->setRawContent($result->getProcessedText());
        $this->assertSame($this->embeddedEntity
            ->getTranslation($expected_title_langcode)->field_media_image->alt, (string) $this->cssSelect('img')[0]
            ->attributes()['alt']);
        // Verify that the filtered text does not vary by translation-related cache
        // contexts: a particular translation of the embedded entity is selected
        // based on the host entity's language, which should require a cache context
        // to be associated. (The host entity's language may itself be selected
        // based on the request context, but that is of no concern to this filter.)
        $this->assertEqualsCanonicalizing($result->getCacheContexts(), [
            'timezone',
            'user.permissions',
        ]);
    }
    
    /**
     * Data provider for testTranslationSelection().
     */
    public static function providerTranslationSituations() {
        $embedded_entity_translation_languages = [
            'en',
            'pt-br',
        ];
        foreach ([
            'en',
            'pt-br',
            'nl',
        ] as $text_langcode) {
            // The text language (which is set to the host entity's language) must be
            // respected in selecting a translation. If that translation does not
            // exist, it falls back to the default translation of the embedded entity.
            $match_or_fallback_langcode = in_array($text_langcode, $embedded_entity_translation_languages) ? $text_langcode : 'en';
            (yield "text_langcode={$text_langcode} ⇒ {$match_or_fallback_langcode}" => [
                $text_langcode,
                $match_or_fallback_langcode,
            ]);
        }
    }

}