AdminNegotiatorTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\user\Unit\Theme;

use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Routing\AdminContext;
use Drupal\Core\Routing\RouteMatch;
use Drupal\Core\Session\AccountInterface;
use Drupal\Tests\UnitTestCase;
use Drupal\user\Theme\AdminNegotiator;

/**
 * Tests AdminNegotiator class.
 *
 * @group user
 * @coversDefaultClass \Drupal\user\Theme\AdminNegotiator
 */
class AdminNegotiatorTest extends UnitTestCase {
    
    /**
     * @dataProvider getThemes
     */
    public function testDetermineActiveTheme($admin_theme, $expected) : void {
        $user = $this->prophesize(AccountInterface::class);
        $config_factory = $this->getConfigFactoryStub([
            'system.theme' => [
                'admin' => $admin_theme,
            ],
        ]);
        $entity_type_manager = $this->prophesize(EntityTypeManagerInterface::class);
        $admin_context = $this->prophesize(AdminContext::class);
        $negotiator = new AdminNegotiator($user->reveal(), $config_factory, $entity_type_manager->reveal(), $admin_context->reveal());
        $route_match = $this->prophesize(RouteMatch::class);
        $this->assertSame($expected, $negotiator->determineActiveTheme($route_match->reveal()));
    }
    
    /**
     * Provides a list of theme names to test.
     */
    public static function getThemes() {
        return [
            [
                'claro',
                'claro',
            ],
            [
                NULL,
                NULL,
            ],
            [
                '',
                NULL,
            ],
        ];
    }

}