UniAddress ua = new UniAddress(dummy);
        assertEquals("192.0.2.1", ua.getHostAddress(), "should forward hostAddress to underlying InetAddress");
    }

    @Test
    void toStringDelegatesToUnderlyingAddress() {
        InetAddress dummy = mock(InetAddress.class);
        when(dummy.toString()).thenReturn("mockedInet");
        UniAddress ua = new UniAddress(dummy);