boolean result = negotiationResponse.isDFSSupported();

        // Assert
        assertFalse(result);
        verify(negotiationResponse).isDFSSupported();
    }

    @Test
    @DisplayName("Test setupRequest method")
    void testSetupRequest() {
        // Arrange
        doNothing().when(negotiationResponse).setupRequest(serverMessageBlock);

        // Act

    @Mock
    Throwable mockCause;

    @Test
    @DisplayName("No-arg constructor: null message and cause; can be thrown")
    void defaultConstructor_behavesAsExpected() {
        // Arrange & Act
        SMBProtocolDecodingException ex = new SMBProtocolDecodingException();

        // Assert state
        assertNull(ex.getMessage(), "Default constructor should have null message");

        // Act
        transWaitNamedPipe = new TransWaitNamedPipe(mockConfig, null);

        // Assert
        assertNotNull(transWaitNamedPipe);
        assertNull(transWaitNamedPipe.name);
    }

    @Test
    @DisplayName("Constructor with empty pipe name should handle gracefully")
    void testConstructorWithEmptyPipeName() {
        // Act

    @Test
    void constructorAcceptsNonNullObject() {
        // Arrange : create a dummy address
        InetAddress dummy = mock(InetAddress.class);
        // Act
        UniAddress ua = new UniAddress(dummy);
        // Assert
        assertSame(dummy, ua.getAddress(), "constructor should store the supplied address");
    }

    @Test
    void constructorRejectsNull() {

    @Test
    @DisplayName("release(): verifies it is invoked exactly once")
    void release_invokedOnce() throws Exception {
        // Arrange: no setup needed; we verify interaction only

        // Act: call release
        handle.release();

        // Assert: verify one invocation and no more
        verify(handle, times(1)).release();
        verifyNoMoreInteractions(handle);
    }

    @Test

        return new Handler(ctx);
    }

    @Test
    @DisplayName("getDefaultPort returns SMB default port")
    void testGetDefaultPort() {
        // Arrange
        Handler handler = newHandler();
        // Act & Assert
        assertEquals(SmbConstants.DEFAULT_PORT, handler.getDefaultPort(), "Default port should match SmbConstants");
    }

    @Test
    @DisplayName("openConnection returns SmbFile using provided CIFSContext")

        // Act
        int actual = findNtStatusOrMinusOne(dosCode);

        // Assert
        assertEquals(expectedNtStatus, actual, "Mapping must match table entry");
    }

    @Test
    @DisplayName("Edge: zero DOS code maps to zero NTSTATUS")
    void zeroCodeMapsToZero() {
        // Act
        int actual = findNtStatusOrMinusOne(0x00000000);

    @Test
    @DisplayName("Constructor with CIFSContext: creates instance")
    void constructor_withContext_createsInstance() {
        // Arrange
        CIFSContext ctx = mock(CIFSContext.class);

        // Act
        SmbTreeConnectionTrace trace = new SmbTreeConnectionTrace(ctx);

        // Assert
        assertNotNull(trace, "Instance should be created");
    }

    @Test

        int dstIndex = 50;

        // Act
        int result = response.writeSetupWireFormat(dst, dstIndex);

        // Assert
        assertEquals(0, result);
    }

    @Test
    @DisplayName("writeParametersWireFormat should return 0")
    void testWriteParametersWireFormat() {
        // Arrange
        byte[] dst = new byte[100];
        int dstIndex = 0;

        // Act

        URL url = new URL(null, "smb://host/share", handler);

        // Act
        URLConnection conn = handler.openConnection(url);

        // Assert
        assertNotNull(conn);
        assertTrue(conn instanceof SmbFile);
    }

    @Test
    @DisplayName("openConnection throws NPE for null URL")
    void testOpenConnectionWithNullUrl() {
        // Act & Assert