assertFalse(Files.exists(temp));

    MoreFiles.touch(temp);
    assertTrue(Files.exists(temp));
    MoreFiles.touch(temp);
    assertTrue(Files.exists(temp));
  }

  public void testTouchTime() throws IOException {
    Path temp = createTempFile();
    assertTrue(Files.exists(temp));
    Files.setLastModifiedTime(temp, FileTime.fromMillis(0));
    assertEquals(0, Files.getLastModifiedTime(temp).toMillis());