function ContainerRebuildWebTest::testContainerInvalidation

Tests container invalidation.

File

core/modules/system/tests/src/Functional/DrupalKernel/ContainerRebuildWebTest.php, line 46

Class

ContainerRebuildWebTest

Ensures that the container rebuild works as expected.

Namespace

Code

public function testContainerInvalidation() : void {
  $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',
        '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');
}