FieldDisplayTest.php

<?php

namespace Drupal\Tests\field\Kernel;

use Drupal\entity_test\Entity\EntityTestRev;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\KernelTests\KernelTestBase;
use Symfony\Component\CssSelector\CssSelectorConverter;

/**
 * Tests Field display.
 *
 * @group field
 */
class FieldDisplayTest extends KernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'entity_test',
        'field',
        'system',
        'user',
    ];
    
    /**
     * Test entity type name.
     *
     * @var string
     */
    protected $entityType;
    
    /**
     * Test entity bundle name.
     *
     * @var string
     */
    protected $bundle;
    
    /**
     * Test field name.
     *
     * @var string
     */
    protected $fieldName;
    
    /**
     * Entity view display.
     *
     * @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface
     */
    protected $display;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Configure the theme system.
        $this->installConfig([
            'system',
            'field',
        ]);
        $this->installEntitySchema('entity_test_rev');
        $this->entityType = 'entity_test_rev';
        $this->bundle = $this->entityType;
        $this->fieldName = mb_strtolower($this->randomMachineName());
        $field_storage = FieldStorageConfig::create([
            'field_name' => $this->fieldName,
            'entity_type' => $this->entityType,
            'type' => 'string',
        ]);
        $field_storage->save();
        $instance = FieldConfig::create([
            'field_storage' => $field_storage,
            'bundle' => $this->bundle,
            'label' => $this->randomMachineName(),
        ]);
        $instance->save();
        $values = [
            'targetEntityType' => $this->entityType,
            'bundle' => $this->bundle,
            'mode' => 'default',
            'status' => TRUE,
        ];
        $this->display = \Drupal::entityTypeManager()->getStorage('entity_view_display')
            ->create($values);
        $this->display
            ->save();
    }
    
    /**
     * Tests that visually hidden works with core.
     */
    public function testFieldVisualHidden() {
        $value = $this->randomMachineName();
        // Set the formatter to link to the entity.
        $this->display
            ->setComponent($this->fieldName, [
            'type' => 'string',
            'label' => 'visually_hidden',
            'settings' => [],
        ])
            ->save();
        $entity = EntityTestRev::create([]);
        $entity->{$this->fieldName}->value = $value;
        $entity->save();
        $build = $this->display
            ->build($entity);
        $renderer = \Drupal::service('renderer');
        $content = $renderer->renderPlain($build);
        $this->setRawContent((string) $content);
        $css_selector_converter = new CssSelectorConverter();
        $elements = $this->xpath($css_selector_converter->toXPath('.visually-hidden'));
        $this->assertCount(1, $elements, $content);
    }

}