@Mock
    SmbTreeHandleImpl tree;

    @Mock
    SmbNamedPipe pipe;

    @Mock
    SmbFileHandleImpl fileHandle;

    private SmbPipeOutputStream newStream() throws CIFSException {
        // Arrange common constructor collaborators to avoid touching network/state
        when(handle.getPipe()).thenReturn(pipe);
        when(tree.isSMB2()).thenReturn(true);
        when(tree.getSendBufferSize()).thenReturn(4096);

        assertEquals("\\PIPE\\", trans.name);
    }

    @Test
    @DisplayName("Test writeSetupWireFormat writes correct data")
    void testWriteSetupWireFormat() {
        // Arrange
        TransTransactNamedPipe trans = new TransTransactNamedPipe(mockConfig, TEST_FID, TEST_DATA, TEST_OFFSET, TEST_LENGTH);
        byte[] dst = new byte[10];
        int dstIndex = 0;

        // Act

    void constructor_shouldSetHandleCorrectly() {
        // Arrange
        short level = 1;

        // Act
        queryPolicy = new MsrpcQueryInformationPolicy(mockPolicyHandle, level, mockNdrObject);

        // Assert
        assertSame(mockPolicyHandle, queryPolicy.handle);
    }

    @Test
    void constructor_shouldSetLevelCorrectly() {
        // Arrange
        short level = 7;

        // Act

            // Arrange
            SamrPolicyHandle ph = createMockPolicyHandle();

            // Act & Assert
            assertDoesNotThrow(() -> new MsrpcSamrConnect2(null, 0, ph));
        }

        @Test
        @DisplayName("should accept negative access mask values")
        void testNegativeAccessMaskAccepted() {
            // Arrange

        verify(tree).connectLogon(null);
    }

    @Test
    @DisplayName("connectLogon propagates SmbException from implementation")
    void connectLogon_throws_propagates() throws Exception {
        // Arrange
        doThrow(new SmbException("login failed")).when(tree).connectLogon(context);

        // Act + Assert
        SmbException ex = assertThrows(SmbException.class, () -> tree.connectLogon(context));

    void setUp() {
        // MockitoAnnotations.openMocks(this); // Not needed with @ExtendWith(MockitoExtension.class)
    }

    @Test
    void constructor_shouldOpenPolicySuccessfully() throws IOException {
        // Arrange
        String server = "testServer";
        int access = 123;

        // Mock the behavior of sendrecv for MsrpcLsarOpenPolicy2
        doAnswer(invocation -> {

        // Arrange & Act
        Handler handler = newHandler();
        URL url = new URL(null, spec, handler);

        // Assert
        assertEquals(expectedPort, url.getPort());
    }

    @Test
    @DisplayName("parseURL with null spec throws NullPointerException")
    void testParseURL_NullSpec() throws MalformedURLException {

        // Arrange
        CIFSContext ctx = mock(CIFSContext.class);
        SmbTreeConnectionTrace trace = new SmbTreeConnectionTrace(ctx);

        // Act & Assert
        assertEquals(-1L, trace.getTreeId());
    }

    @Test
    @DisplayName("getConfig(): delegates to context")
    void getConfig_delegatesToContext() {
        // Arrange

        closeHandleCaptor = ArgumentCaptor.forClass(MsrpcSamrCloseHandle.class);
    }

    @Test
    void constructor_shouldOpenDomainSuccessfully() throws IOException {
        // Arrange
        int access = 0x01; // Example access value
        // Simulate successful RPC call
        doAnswer(invocation -> {
            MsrpcSamrOpenDomain rpc = invocation.getArgument(0);

            // Arrange
            Smb2LogoffRequest req = newRequest();

            // Act/Assert
            assertThrows(NullPointerException.class, () -> req.createResponse(null, req));
        }

        @Test
        @DisplayName("createResponse tolerates null request parameter")
        void createResponse_nullRequest_ok() {
            // Arrange