LegacyStyleSheetsRemoveTest.php

<?php

namespace Drupal\Tests\system\Functional\Theme;

use Drupal\Tests\BrowserTestBase;

/**
 * Tests the legacy stylesheets-remove key.
 *
 * @group system
 * @group legacy
 */
class LegacyStyleSheetsRemoveTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        \Drupal::service('theme_installer')->install([
            'test_legacy_stylesheets_remove',
        ]);
    }
    
    /**
     * Tests the stylesheets-remove key.
     *
     * @throws \Behat\Mink\Exception\ExpectationException
     *
     * @expectedDeprecation The theme info key stylesheets-remove implemented by theme test_legacy_stylesheets_remove is deprecated in drupal:8.0.0 and is removed from drupal:10.0.0. See https://www.drupal.org/node/2497313
     */
    public function testStyleSheetsRemove() {
        \Drupal::configFactory()->getEditable('system.theme')
            ->set('default', 'classy')
            ->save();
        $this->drupalGet('<front>');
        $this->assertSession()
            ->responseContains('css/components/action-links.css?');
        $this->assertSession()
            ->responseContains('css/components/breadcrumb.css?');
        \Drupal::configFactory()->getEditable('system.theme')
            ->set('default', 'test_legacy_stylesheets_remove')
            ->save();
        $this->drupalGet('<front>');
        $this->assertSession()
            ->responseNotContains('css/components/action-links.css?');
        $this->assertSession()
            ->responseContains('css/components/breadcrumb.css?');
    }

}