assertThrows(CIFSException.class, () -> sidResolver.getServerSid(mockContext, ""));
    }

    // Test getLocalGroupsMap
    @Test
    void testGetLocalGroupsMap_Success() throws CIFSException {
        Map<SID, List<SID>> expectedMap = new HashMap<>();
        List<SID> group1Members = Arrays.asList(mockSid1, mockSid2);
        List<SID> group2Members = Arrays.asList(mockSid3);