UpdateManagerTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\update\Functional;


/**
 * Tests legacy Update Manager functionality of the Update Status module.
 *
 * @group legacy
 * @group update
 */
class UpdateManagerTest extends UpdateTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Checks that clearing the disk cache works.
     */
    public function testClearDiskCache() : void {
        $directories = [
            _update_manager_cache_directory(FALSE),
            _update_manager_extract_directory(FALSE),
        ];
        // Check that update directories does not exists.
        foreach ($directories as $directory) {
            $this->assertDirectoryDoesNotExist($directory);
        }
        // Method must not fail if update directories do not exists.
        update_clear_update_disk_cache();
    }

}