outline-8.x-1.x-dev/tests/src/Functional/ThemeTest.php

<?php

namespace Drupal\Tests\outline\Functional;

/**
 * Verifies that various outline pages use the expected theme.
 *
 * @group outline
 */
class ThemeTest extends OutlineTestBase {

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  protected function setUp(): void {
    parent::setUp();

    // Make sure we are using distinct default and administrative themes for
    // the duration of these tests.
    \Drupal::service('theme_installer')->install(['bartik', 'seven']);
    $this->config('system.theme')
      ->set('default', 'bartik')
      ->set('admin', 'seven')
      ->save();

    // Create and log in as a user who has permission to add and edit outline
    // entries and view the administrative theme.
    $admin_user = $this->drupalCreateUser([
      'administer outline',
      'view the administration theme',
    ]);
    $this->drupalLogin($admin_user);
  }

  /**
   * Test the theme used when adding, viewing and editing outline entries.
   */
  public function testOutlineEntryThemes() {
    // Adding a entry to a outline is considered an administrative action and
    // should use the administrative theme.
    $outline = $this->createOutline();
    $this->drupalGet('admin/structure/outline/manage/' . $outline->id() . '/add');
    $this->assertRaw('seven/css/base/elements.css', t("The administrative theme's CSS appears on the page for adding a outline entry."));

    // Viewing a outline entry should use the default theme.
    $entry = $this->createEntry($outline);
    $this->drupalGet('outline/entry/' . $entry->id());
    $this->assertRaw('bartik/css/base/elements.css', t("The default theme's CSS appears on the page for viewing a outline entry."));

    // Editing a outline entry should use the same theme as adding one.
    $this->drupalGet('outline/entry/' . $entry->id() . '/edit');
    $this->assertRaw('seven/css/base/elements.css', t("The administrative theme's CSS appears on the page for editing a outline entry."));
  }

}