}

    @Test
    public void test_authenticatorInstantiation() {
        // Verify authenticator can be instantiated without errors
        SpnegoAuthenticator authenticator = new SpnegoAuthenticator();
        assertNotNull(authenticator);
    }

    @Test
    public void test_spnegoConfigClass() {
        // Verify the inner class is named correctly: SpnegoConfig (not SpengoConfig)

        // When
        outputStream = new SmbFileOutputStream(mockFile);

        // Then
        assertNotNull(outputStream);

        // Verify the AutoCloseable resources were closed
        verify(autoCloseableMockTreeHandle).close();
        verify(autoCloseableMockFileHandle).close();
    }

    @Test
    void testConstructorWithAppendFlag() throws IOException, CIFSException {
        // Given

    class FilterFlagsTests {

        @Test
        @DisplayName("Verify FILE_NOTIFY_CHANGE_FILE_NAME constant value")
        void testFileNotifyChangeFileName() {
            assertEquals(0x00000001, FileNotifyInformation.FILE_NOTIFY_CHANGE_FILE_NAME);
        }

        @Test
        @DisplayName("Verify FILE_NOTIFY_CHANGE_DIR_NAME constant value")
        void testFileNotifyChangeDirName() {

        int bytesWritten = netServerEnum2.writeParametersWireFormat(dst, dstIndex);

        // Verify bytes written
        assertTrue(bytesWritten > 0);

        // Verify subcommand
        assertEquals(SmbComTransaction.NET_SERVER_ENUM2, dst[0]);
        assertEquals(0, dst[1]);

        // Verify descriptor (WrLehDO\0B16BBDz\0 in ASCII)
        String expectedDescr = "WrLehDO\u0000B16BBDz\u0000";

        Smb2LeaseKey result = directoryLeaseManager.requestDirectoryLease(directoryPath, requestedState, scope);

        assertEquals(expectedKey, result);
        verify(baseLeaseManager).requestLease(directoryPath, requestedState);

        // Verify cache entry was created
        DirectoryCacheEntry cacheEntry = directoryLeaseManager.getCacheEntry(directoryPath);
        assertNotNull(cacheEntry);

            // Then
            assertNotNull(retrievedTransport);
            assertFalse(hasActiveTransports);
            verify(transportPool).getSmbTransport(context, TEST_HOST, DEFAULT_PORT, false, false);
            verify(transportPool).removeTransport(transport);
            verify(transportPool).close();
        }

        @Test
        @DisplayName("Should handle authentication workflow")

        when(fileHandle.getTree()).thenReturn(tree);

        // When handle is valid, expect close()
        target.ensureOpen();
        target.close();
        verify(fileHandle, times(1)).close();
        verify(fileHandle, never()).release();
        verify(tree, atLeastOnce()).release();

        // Re-prepare state for second branch: not open but handle set
        when(fileHandle.isValid()).thenReturn(false);

        // Verify that the wrap method was called exactly once
        verify(dcerpcSecurityProvider, times(1)).wrap(mockNdrBuffer);
    }

    @Test
    void testUnwrapMethodIsCalled() throws DcerpcException {
        // Test that the unwrap method can be called without throwing an exception
        dcerpcSecurityProvider.unwrap(mockNdrBuffer);

            entry.encode(mockNdrBuffer);

            // Then: Should encode all fields
            verify(mockNdrBuffer).align(4);
            verify(mockNdrBuffer).enc_ndr_long(1);
            verify(mockNdrBuffer).enc_ndr_short((short) 4);
            verify(mockNdrBuffer).enc_ndr_short((short) 6);
            verify(mockNdrBuffer).enc_ndr_referent(entry.name.buffer, 1);
        }

        @Test

        FsctlPipeWaitRequest request = new FsctlPipeWaitRequest(pipeName);

        // Verify size (14 bytes header + 0 bytes for empty name)
        assertEquals(14, request.size());

        // Test encoding
        byte[] buffer = new byte[50];
        int bytesEncoded = request.encode(buffer, 0);

        // Verify
        assertEquals(14, bytesEncoded);