void testGetDc_DfsDisabled() throws CIFSException {
        when(mockConfig.isDfsDisabled()).thenReturn(true);
        assertNull(dfsResolver.getDc(mockContext, "anyDomain"));
    }

    @Test
    void testGetDc_Success() throws CIFSException, IOException {
        when(mockConfig.isDfsDisabled()).thenReturn(false);
        when(mockContext.getTransportPool()).thenReturn(mockTransportPool);

    void testGetDc_Disabled() throws SmbAuthException {
        // Test with disabled DFS
        testDfs.setDisabled(true);
        assertNull(testDfs.getDc("domain.com", auth));
    }

    @Test
    void testGetDc_Success() throws IOException, SmbAuthException {
        lenient().when(UniAddress.getByName("domain.com", true)).thenReturn(uniAddress);
        lenient().when(SmbTransport.getSmbTransport(uniAddress, 0)).thenReturn(smbTransport);