class ContainerRebuildWebTest

class ContainerRebuildWebTest extends BrowserTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'service_provider_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * Sets a different deployment identifier.
   */
  public function testSetContainerRebuildWithDifferentDeploymentIdentifier() {
    $assert = $this->assertSession();
    // Ensure the parameter is not set.
    $this->drupalGet('<front>');
    $assert->responseHeaderEquals('container_rebuild_indicator', NULL);
    $this->writeSettings([
      'settings' => [
        'deployment_identifier' => (object) [
          'value' => 'new-identifier',
          'required' => TRUE,
        ],
      ],
    ]);
    $this->drupalGet('<front>');
    $assert->responseHeaderEquals('container_rebuild_indicator', 'new-identifier');
  }
  
  /**
   * Tests container invalidation.
   */
  public function testContainerInvalidation() {
    $assert = $this->assertSession();
    // Ensure that parameter is not set.
    $this->drupalGet('<front>');
    $assert->responseHeaderEquals('container_rebuild_test_parameter', NULL);
    // Ensure that after setting the parameter, without a container rebuild the
    // parameter is still not set.
    $this->writeSettings([
      'settings' => [
        'container_rebuild_test_parameter' => (object) [
          'value' => 'rebuild_me_please',
          'required' => TRUE,
        ],
      ],
    ]);
    $this->drupalGet('<front>');
    $assert->responseHeaderEquals('container_rebuild_test_parameter', NULL);
    // Ensure that after container invalidation the parameter is set.
    \Drupal::service('kernel')->invalidateContainer();
    $this->drupalGet('<front>');
    $assert->responseHeaderEquals('container_rebuild_test_parameter', 'rebuild_me_please');
  }

}