assertEquals(l3, l4);
        assertEquals(l3.hashCode(), l4.hashCode());
    }

    @Test
    @DisplayName("overlaps requires same address and canonical URL prefix match")
    void testOverlaps() throws Exception {
        UniAddress a = mock(UniAddress.class);
        when(nsc.getAllByName(anyString(), anyBoolean())).thenReturn(new Address[] { a });