@Test
public void testCreateNewFile()
{

    final String fileAbsPath = FilenameUtils.concat( tmpDir, this.getDateTimeInMillis() + ".txt" );
    boolean created = FileUtil.createNewFile( fileAbsPath );
    assertTrue( created );
    assertTrue( FileUtil.isFileExists( fileAbsPath ) );
    assertTrue( FileUtil.deleteFile( fileAbsPath ) );
}