when(mockResponse.getGrantedCredits()).thenReturn(100);
        assertEquals(100, mockResponse.getGrantedCredits());

        // Verify the method was called
        verify(mockResponse, times(1)).getGrantedCredits();
    }

    @Test
    void testGetErrorCode() {
        // Simulate error code
        when(mockResponse.getErrorCode()).thenReturn(-1);
        assertEquals(-1, mockResponse.getErrorCode());

        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);

    @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();

            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

        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;
    }

            byte[] decryptedData = createDecryptedDataBytes(USER_PRINCIPAL_NAME, USER_REALM);
            mockedEncData.when(() -> KerberosEncData.decrypt(ENCRYPTED_DATA, kerberosKey, ENCRYPTION_TYPE)).thenReturn(decryptedData);
            when(kerberosKey.getKeyType()).thenReturn(ENCRYPTION_TYPE);

            KerberosTicket ticket = new KerberosTicket(validToken, (byte) 0, keys);
            assertNotNull(ticket);
        }
    }

    @Test

            when(mockNdrBuffer.dec_ndr_long()).thenReturn(1, 100); // idx, _name_bufferp
            when(mockNdrBuffer.dec_ndr_short()).thenReturn(4, 6); // length, maximum_length
            when(mockDeferredBuffer.dec_ndr_long()).thenReturn(3, 0, 2); // _name_buffers, 0, _name_bufferl
            when(mockDeferredBuffer.dec_ndr_short()).thenReturn((int) (short) 't', (int) (short) 'e');

            // When: Decoding entry

        when(smbFileHandle.isValid()).thenReturn(true);
        assertTrue(smbFileHandle.isValid(), "isValid should return true when the handle is valid.");
        verify(smbFileHandle, times(1)).isValid();
    }

    /**
     * Test isValid() when the handle is invalid.
     */
    @Test
    void testIsValid_whenInvalid() {
        when(smbFileHandle.isValid()).thenReturn(false);

        lenient().when(mockConfig.getDefaultDomain()).thenReturn("TESTDOMAIN");
        lenient().when(mockConfig.isUseUnicode()).thenReturn(true);
        lenient().when(mockConfig.getOemEncoding()).thenReturn("UTF-8");
        lenient().when(mockConfig.getRandom()).thenReturn(mockRandom);
        lenient().when(mockConfig.getLanManCompatibility()).thenReturn(3); // Default NTLMv2

        mockNdrBuffer.deferred = mockDeferredBuffer;
        lenient().when(mockNdrBuffer.derive(anyInt())).thenReturn(mockDeferredBuffer);
        lenient().when(mockDeferredBuffer.derive(anyInt())).thenReturn(mockDeferredBuffer);
    }

    @Test
    void testGetSyntax() {
        String syntax = srvsvc.getSyntax();