when(tree.isConnected()).thenReturn(true);
        when(tree.getSession()).thenReturn(session);
        when(tree.acquire(false)).thenReturn(tree);
        when(session.getTransport()).thenReturn(transport);
        when(transport.isDisconnected()).thenReturn(false);
        when(transport.getRemoteHostName()).thenReturn("host");
        setTree(c, tree);

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

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

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

    // next map.get()
    when(backingMap.get(KEY)).thenReturn(existingZero);
    // since get returned zero, try a replace; that fails due to a simulated race
    when(backingMap.replace(eq(KEY), eq(existingZero), isA(AtomicInteger.class))).thenReturn(false);
    when(backingMap.putIfAbsent(eq(KEY), isA(AtomicInteger.class))).thenReturn(existing);

    // another map.get()

            when(transportPool.getSmbTransport(context, address, DEFAULT_PORT, false)).thenReturn(sharedTransport);
            when(transportPool.getSmbTransport(context, address, DEFAULT_PORT, true)).thenReturn(exclusiveTransport);
            when(transportPool.getSmbTransport(context, address, DEFAULT_PORT, false, true)).thenReturn(signedTransport);

            // When

    void setUp() {
        lenient().when(mockFileEntry1.getName()).thenReturn("file1.txt");
        lenient().when(mockFileEntry2.getName()).thenReturn("file2.txt");
        lenient().when(mockFileEntry3.getName()).thenReturn("file3.txt");

        lenient().when(mockResource1.getName()).thenReturn("file1.txt");
        lenient().when(mockResource2.getName()).thenReturn("file2.txt");

        when(mockConnection.getRequestMethod()).thenReturn("GET");
        when(mockConnection.getAllowUserInteraction()).thenReturn(true);
        when(mockConnection.getDoInput()).thenReturn(true);
        when(mockConnection.getDoOutput()).thenReturn(true);
        when(mockConnection.getIfModifiedSince()).thenReturn(12345L);
        when(mockConnection.getUseCaches()).thenReturn(false);

        when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockContext.getNameServiceClient()).thenReturn(mockNameServiceClient);
        when(mockNameServiceClient.getLocalHost()).thenReturn(mockHost);
        when(mockHost.getHostName()).thenReturn(TEST_HOSTNAME);
        when(mockConfig.getDefaultDomain()).thenReturn(TEST_DOMAIN);
        when(mockConfig.isUseUnicode()).thenReturn(true);

        return mockContext;
    }

        final ResponseProcessor responseProcessor = mock(ResponseProcessor.class);

        when(ruleManager.getRule(responseData)).thenReturn(rule);
        when(rule.getRuleId()).thenReturn("test-rule");
        when(rule.getResponseProcessor()).thenReturn(responseProcessor);

        // Use reflection to access protected method
        final java.lang.reflect.Method method =

    void testGet() throws CIFSException {
        // Given
        String url = "smb://server/share/file";
        SmbResource mockResource = mock(SmbResource.class);
        when(mockContext.get(url)).thenReturn(mockResource);

        // When
        SmbResource resource = mockContext.get(url);

        // Then
        assertEquals(mockResource, resource);
        verify(mockContext).get(url);
    }

    @Test

    @Test
    @DisplayName("isSigningOptional and isSigningEnforced reflect configuration")
    void signingModes() throws Exception {
        when(transport.isSigningOptional()).thenReturn(true);
        when(transport.isSigningEnforced()).thenReturn(false);

        assertTrue(transport.isSigningOptional());
        assertFalse(transport.isSigningEnforced());
        verify(transport).isSigningOptional();