@Override
  public boolean isExecutable() throws FileSystemException {
    return resolvedFileObject.isExecutable();
  }
@Test
  public void testDelegatesIsExecutable() throws FileSystemException {
    when( resolvedFileObject.isExecutable() ).thenReturn( true );

    assertTrue( fileObject.isExecutable() );

    when( resolvedFileObject.isExecutable() ).thenReturn( false );

    assertFalse( fileObject.isExecutable() );

    verify( resolvedFileObject, times( 2 ) ).isExecutable();
  }