Date date = pacStream.readFiletime();
        assertNull(date); // Should return null for "never" values
    }

    @Test
    @DisplayName("Test SID parsing")
    void testSidParsing() throws Exception {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(baos);

        // Write a RID (4 bytes) for readId() method