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');
}