function EntityReferenceFormatterTest::testCustomCacheTagFormatter

Tests the merging of cache metadata.

File

core/modules/field/tests/src/Kernel/EntityReference/EntityReferenceFormatterTest.php, line 173

Class

EntityReferenceFormatterTest

Tests the formatters functionality.

Namespace

Code

public function testCustomCacheTagFormatter() {
    
    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container
        ->get('renderer');
    $formatter = 'entity_reference_custom_cache_tag';
    $build = $this->buildRenderArray([
        $this->referencedEntity,
    ], $formatter);
    $renderer->renderRoot($build);
    $this->assertContains('custom_cache_tag', $build['#cache']['tags']);
}