class BlockConfigSyncTest

class BlockConfigSyncTest extends KernelTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'block',
    'system',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    \Drupal::service(ThemeInstallerInterface::class)->install([
      'stark',
      'claro',
    ]);
    // Delete all existing blocks.
    foreach (Block::loadMultiple() as $block) {
      $block->delete();
    }
    // Set the default theme.
    $this->config('system.theme')
      ->set('default', 'stark')
      ->save();
    // Create a block for the default theme to be copied later.
    Block::create([
      'id' => 'test_block',
      'plugin' => 'system_powered_by_block',
      'region' => 'content',
      'theme' => 'stark',
    ])->save();
  }
  
  /**
   * {@inheritdoc}
   */
  public function register(ContainerBuilder $container) : void {
    parent::register($container);
    $container->setParameter('install_profile', 'testing');
  }
  
  /**
   * Tests blocks are not created during config sync.
   *
   * @param bool $syncing
   *   Whether or not config is syncing when the hook is invoked.
   * @param string|null $expected_block_id
   *   The expected ID of the block that should be created, or NULL if no block
   *   should be created.
   *
   * @testWith [true, null]
   *   [false, "claro_test_block"]
   */
  public function testNoBlocksCreatedDuringConfigSync(bool $syncing, ?string $expected_block_id) : void {
    \Drupal::service(ConfigInstallerInterface::class)->setSyncing($syncing);
    // Invoke the hook that should skip block creation due to config sync.
    \Drupal::moduleHandler()->invoke('block', 'themes_installed', [
      [
        'claro',
      ],
    ]);
    // This should hold true if the "current" install profile triggers an
    // invocation of hook_modules_installed().
    \Drupal::moduleHandler()->invoke('block', 'modules_installed', [
      [
        'testing',
      ],
      $syncing,
    ]);
    $this->assertSame($expected_block_id, Block::load('claro_test_block')?->id());
  }

}