NodeBodyFieldStorageTest.php

<?php

namespace Drupal\Tests\node\Kernel;

use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\node\Entity\NodeType;
use Drupal\KernelTests\KernelTestBase;

/**
 * Tests node body field storage.
 *
 * @group node
 */
class NodeBodyFieldStorageTest extends KernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'user',
        'system',
        'field',
        'node',
        'text',
        'filter',
    ];
    protected function setUp() {
        parent::setUp();
        $this->installSchema('system', 'sequences');
        // Necessary for module uninstall.
        $this->installSchema('user', 'users_data');
        $this->installEntitySchema('user');
        $this->installEntitySchema('node');
        $this->installConfig([
            'field',
            'node',
        ]);
    }
    
    /**
     * Tests node body field storage persistence even if there are no instances.
     */
    public function testFieldOverrides() {
        $field_storage = FieldStorageConfig::loadByName('node', 'body');
        $this->assertNotEmpty($field_storage, 'Node body field storage exists.');
        $type = NodeType::create([
            'name' => 'Ponies',
            'type' => 'ponies',
        ]);
        $type->save();
        node_add_body_field($type);
        $field_storage = FieldStorageConfig::loadByName('node', 'body');
        $this->assertCount(1, $field_storage->getBundles(), 'Node body field storage is being used on the new node type.');
        $field = FieldConfig::loadByName('node', 'ponies', 'body');
        $field->delete();
        $field_storage = FieldStorageConfig::loadByName('node', 'body');
        $this->assertCount(0, $field_storage->getBundles(), 'Node body field storage exists after deleting the only instance of a field.');
        \Drupal::service('module_installer')->uninstall([
            'node',
        ]);
        $field_storage = FieldStorageConfig::loadByName('node', 'body');
        $this->assertNull($field_storage, 'Node body field storage does not exist after uninstalling the Node module.');
    }

}