@Test
public void testGetImpersonators() throws Exception {

    Impersonation delegate = mock(Impersonation.class);
    ImpersonationFacade facade = getFacade(delegate);
    final PrincipalIterator value = mock(PrincipalIterator.class);
    when(delegate.getImpersonators()).thenReturn(value);
    assertSame("is same value", value, facade.getImpersonators());
}