ConfigEntityNormalizeTest.php

<?php

namespace Drupal\KernelTests\Core\Config;

use Drupal\KernelTests\KernelTestBase;

/**
 * Tests the listing of configuration entities.
 *
 * @group config
 */
class ConfigEntityNormalizeTest extends KernelTestBase {
    
    /**
     * Modules to install.
     *
     * @var array
     */
    public static $modules = [
        'config_test',
    ];
    protected function setUp() {
        parent::setUp();
        $this->installConfig(static::$modules);
    }
    public function testNormalize() {
        $config_entity = \Drupal::entityTypeManager()->getStorage('config_test')
            ->create([
            'id' => 'system',
            'label' => 'foobar',
            'weight' => 1,
        ]);
        $config_entity->save();
        // Modify stored config entity, this is comparable with a schema change.
        $config = $this->config('config_test.dynamic.system');
        $data = [
            'label' => 'foobar',
            'additional_key' => TRUE,
        ] + $config->getRawData();
        $config->setData($data)
            ->save();
        $this->assertNotIdentical($config_entity->toArray(), $config->getRawData(), 'Stored config entity is not is equivalent to config schema.');
        $config_entity = \Drupal::entityTypeManager()->getStorage('config_test')
            ->load('system');
        $config_entity->save();
        $config = $this->config('config_test.dynamic.system');
        $this->assertIdentical($config_entity->toArray(), $config->getRawData(), 'Stored config entity is equivalent to config schema.');
    }

}