@Test
public void forceDeleteNonexistentFile() throws Exception {

  File file = temp.newFile();
  if (file.delete()) {
    ShellCommandUtil.Result result = ShellCommandUtil.delete(file.getAbsolutePath(), true, false);
    Assert.assertTrue(result.getStderr(), result.isSuccessful());
    Assert.assertFalse(file.exists());
  }
}