public MutableInodeFile setCompleted(boolean completed) {
    mCompleted = completed;
    return getThis();
  }
@Test
  public void setCompleted() {
    MutableInodeFile inode1 = createInodeFile(1);
    assertFalse(inode1.isCompleted());

    inode1.setCompleted(true);
    assertTrue(inode1.isCompleted());
  }