class FileSystemTempDirectoryTest

class FileSystemTempDirectoryTest extends KernelTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'system',
  ];
  
  /**
   * The file system under test.
   *
   * @var \Drupal\Core\File\FileSystemInterface
   */
  protected $fileSystem;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $stream_wrapper_manager = $this->container
      ->get('stream_wrapper_manager');
    $logger = $this->container
      ->get('logger.channel.file');
    $settings = $this->container
      ->get('settings');
    $this->fileSystem = new FileSystem($stream_wrapper_manager, $settings, $logger);
  }
  
  /**
   * Tests 'file_temp_path' setting.
   *
   * @covers ::getTempDirectory
   */
  public function testGetTempDirectorySettings() {
    $tempDir = '/var/tmp/' . $this->randomMachineName();
    $this->setSetting('file_temp_path', $tempDir);
    $this->assertEquals($tempDir, $this->fileSystem
      ->getTempDirectory());
  }
  
  /**
   * Tests os default fallback.
   *
   * @covers ::getTempDirectory
   */
  public function testGetTempDirectoryOsDefault() {
    $tempDir = FileSystemComponent::getOsTemporaryDirectory();
    $dir = $this->fileSystem
      ->getTempDirectory();
    $this->assertEquals($tempDir, $dir);
  }

}