String s2 = h2.toString();
        assertTrue(s2.contains("//u/two"));
        assertTrue(s2.contains("77"), "Expected numeric fid in string");
    }

    static Stream<Arguments> equalsHashParams() {
        return Stream.of(
                // byte[] id based equality (same id and tree id)
                Arguments.of(new byte[] { 0x0A, 0x0B }, new byte[] { 0x0A, 0x0B }, 100L, true),