assertThrows(CIFSException.class, () -> sidResolver.getLocalGroupsMap(null, testServerName, 0));
    }

    @Test
    void testGetLocalGroupsMap_InvalidFlags() throws CIFSException {
        when(sidResolver.getLocalGroupsMap(any(CIFSContext.class), anyString(), eq(-1))).thenThrow(new CIFSException("Invalid flags"));