when(mockConfig.isDfsDisabled()).thenReturn(false);
        when(mockContext.getCredentials()).thenReturn(mockCredentials);
        when(mockCredentials.getUserDomain()).thenReturn(null);
        assertFalse(dfsResolver.isTrustedDomain(mockContext, "anyDomain"));
    }

    @Test
    void testIsTrustedDomain_EmptyUserDomain() throws CIFSException {
        when(mockConfig.isDfsDisabled()).thenReturn(false);

        // Set up mock behaviors
        when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockContext.getCredentials()).thenReturn(mockCredentials);
        when(mockContext.getTransportPool()).thenReturn(mockTransportPool);
        when(mockConfig.getDfsTtl()).thenReturn(300L);

        // Mock transport to throw IOException - simulating connection failure

        FileEntry mock = mock(FileEntry.class);
        when(mock.getName()).thenReturn("test.txt");
        when(mock.getType()).thenReturn(1);
        when(mock.getAttributes()).thenReturn(128);
        when(mock.createTime()).thenReturn(1_500L);
        when(mock.lastModified()).thenReturn(1_800L);
        when(mock.length()).thenReturn(100L);

        assertEquals("test.txt", mock.getName());

     */
    @Test
    void testIsConnected() {
        when(smbTreeHandle.isConnected()).thenReturn(true);
        assertTrue(smbTreeHandle.isConnected(), "isConnected() should return true");
        when(smbTreeHandle.isConnected()).thenReturn(false);
        assertFalse(smbTreeHandle.isConnected(), "isConnected() should return false after status change");
    }

    /**

        when(mockChannelManager.getHealthyChannels()).thenReturn(Collections.singletonList(channel1));

        ChannelInfo selected = loadBalancer.selectChannel(mockMessage);
        assertEquals(channel1, selected);
    }

    @Test
    void testNoChannelsAvailable() {
        when(mockChannelManager.getHealthyChannels()).thenReturn(Collections.emptyList());

        });
    }

    @Test
    @DisplayName("Should get server")
    void testGetServer() {
        // Given
        String server = "testserver";
        when(mockReferralData.getServer()).thenReturn(server);

        // When
        String result = mockReferralData.getServer();

        // Then
        assertEquals(server, result);
        verify(mockReferralData).getServer();
    }

    @Test

        // Arrange common constructor collaborators to avoid touching network/state
        when(handle.getPipe()).thenReturn(pipe);
        when(tree.isSMB2()).thenReturn(true);
        when(tree.getSendBufferSize()).thenReturn(4096);
        // Act
        return new SmbPipeOutputStream(handle, tree);
    }

    @ParameterizedTest
    @ValueSource(booleans = { true, false })

    }

    @Test
    @DisplayName("unwrap method should return correct type when supported")
    void testUnwrapMethodContract() throws Exception {
        // Given
        when(mockAddress.unwrap(Address.class)).thenReturn(mockAddress);

        // When & Then
        Address unwrapped = mockAddress.unwrap(Address.class);
        assertSame(mockAddress, unwrapped, "Should return same instance for supported type");
    }

    @Test

        when(session.getConfig()).thenReturn(config);
        when(session.getContext()).thenReturn(context);
        when(session.getTransport()).thenReturn(transport);
        when(session.acquire()).thenReturn(session);
        when(config.isTraceResourceUsage()).thenReturn(false);
        when(context.getConfig()).thenReturn(config);
        when(session.isConnected()).thenReturn(true);
    }

        void testToStringWithValidData() {
            byte[] challenge = new byte[] { (byte) 0x01, (byte) 0x02, (byte) 0x03, (byte) 0xFF };
            UniAddress dc = mock(UniAddress.class);
            when(dc.toString()).thenReturn("SERVER123");

            NtlmChallenge nc = new NtlmChallenge(challenge, dc);
            String result = nc.toString();

            // The format is: NtlmChallenge[challenge=0x<hex>,dc=<dc_string>]