function PageRenderTest::assertPageRenderHookExceptions

Asserts whether expected exceptions are thrown for invalid hook implementations.

@internal

Parameters

string $module: The module whose invalid logic in its hooks to enable.

string $hook: The page render hook to assert expected exceptions for.

File

core/modules/system/tests/src/Kernel/Common/PageRenderTest.php, line 44

Class

PageRenderTest

Test page rendering hooks.

Namespace

Code

public function assertPageRenderHookExceptions(string $module, string $hook) : void {
    $html_renderer = \Drupal::getContainer()->get('main_content_renderer.html');
    // Assert a valid hook implementation doesn't trigger an exception.
    $page = [];
    $html_renderer->invokePageAttachmentHooks($page);
    // Assert that hooks can set cache tags.
    $this->assertEquals([
        'example',
    ], $page['#cache']['tags']);
    $this->assertEquals([
        'user.permissions',
    ], $page['#cache']['contexts']);
    // Assert an invalid hook implementation doesn't trigger an exception.
    \Drupal::state()->set($module . '.' . $hook . '.descendant_attached', TRUE);
    $assertion = $hook . '() implementation that sets #attached on a descendant triggers an exception';
    $page = [];
    try {
        $html_renderer->invokePageAttachmentHooks($page);
        $this->error($assertion);
    } catch (\LogicException $e) {
        $this->assertEquals('Only #attached and #cache may be set in ' . $hook . '().', $e->getMessage());
    }
    \Drupal::state()->set('bc_test.' . $hook . '.descendant_attached', FALSE);
    // Assert an invalid hook implementation doesn't trigger an exception.
    \Drupal::state()->set('bc_test.' . $hook . '.render_array', TRUE);
    $assertion = $hook . '() implementation that sets a child render array triggers an exception';
    $page = [];
    try {
        $html_renderer->invokePageAttachmentHooks($page);
        $this->error($assertion);
    } catch (\LogicException $e) {
        $this->assertEquals('Only #attached and #cache may be set in ' . $hook . '().', $e->getMessage());
    }
    \Drupal::state()->set($module . '.' . $hook . '.render_array', FALSE);
}