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);
    }

}