UpdateStorageTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\update\Kernel;

use Drupal\KernelTests\KernelTestBase;

/**
 * Tests the Update module storage is cleared correctly.
 *
 * @group update
 */
class UpdateStorageTest extends KernelTestBase {

  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'update',
  ];

  /**
   * Tests the Update module storage is cleared correctly.
   */
  public function testUpdateStorage() {

    // Setting values in both key stores, then installing the module and
    // testing if these key values are cleared.
    $keyvalue_update = $this->container
      ->get('keyvalue.expirable')
      ->get('update');
    $keyvalue_update
      ->set('key', 'some value');
    $keyvalue_update_available_release = $this->container
      ->get('keyvalue.expirable')
      ->get('update_available_release');
    $keyvalue_update_available_release
      ->set('key', 'some value');
    $this->container
      ->get('module_installer')
      ->install([
      'help',
    ]);
    $this
      ->assertNull($keyvalue_update
      ->get('key'));
    $this
      ->assertNull($keyvalue_update_available_release
      ->get('key'));

    // Setting new values in both key stores, then uninstalling the module and
    // testing if these new key values are cleared.
    $keyvalue_update
      ->set('another_key', 'some value');
    $keyvalue_update_available_release
      ->set('another_key', 'some value');
    $this->container
      ->get('module_installer')
      ->uninstall([
      'help',
    ]);
    $this
      ->assertNull($keyvalue_update
      ->get('another_key'));
    $this
      ->assertNull($keyvalue_update_available_release
      ->get('another_key'));
  }

}