}

    @Test
    @DisplayName("Test isAsync method returning true")
    void testIsAsyncTrue() {
        // Given
        when(response.isAsync()).thenReturn(true);

        // When
        boolean isAsync = response.isAsync();

        // Then
        assertTrue(isAsync);
        verify(response).isAsync();
    }

    @Test
    @DisplayName("Test isAsync method returning false")
    void testIsAsyncFalse() {

        MockNotifyResponse response = new MockNotifyResponse(Collections.emptyList());

        // Test async property
        assertFalse(response.isAsync());
        response.setAsync(true);
        assertTrue(response.isAsync());

        // Test next response property
        assertNull(response.getNextResponse());
        MockNotifyResponse nextResponse = new MockNotifyResponse(Collections.emptyList());

    void testIsResponseAsync() {
        // Given
        Smb2CancelRequest request = new Smb2CancelRequest(mockConfig, 1L, 0L);

        // When
        boolean isAsync = request.isResponseAsync();

        // Then
        assertFalse(isAsync, "Cancel requests should not expect async responses");
    }

    @Test
    @DisplayName("Test getNext returns null")
    void testGetNext() {
        // Given

        private CommonServerMessageBlockResponse response;
        private int command = 0;
        private byte[] rawPayload;
        private boolean retainPayload = false;

        @Override
        public boolean isAsync() {
            return async;
        }

        @Override
        public CommonServerMessageBlockResponse getNextResponse() {
            return nextResponse;
        }

        @Override

                flagsField.set(this, flags);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

        @Override
        public boolean isAsync() {
            return async;
        }

        public void setAsync(boolean async) {
            this.async = async;
        }

        @Override
        public boolean isRetainPayload() {

            // No getter for readSize, but it's used internally in decode
        }

        @Test
        @DisplayName("Should check if async")
        void testAsyncProperty() {
            assertFalse(testMessage.isAsync());
        }
    }

    @Nested
    @DisplayName("Flag Operations Tests")
    class FlagOperationsTests {

        @Test
        @DisplayName("Should add flags correctly")

        }

        @Test
        @DisplayName("Test default request properties")
        void testDefaultRequestProperties() {
            assertEquals(0, testBlock.size());
            assertFalse(testBlock.isAsync());
            assertFalse(testBlock.isResponseAsync());
            assertNull(testBlock.getNext());
            assertFalse(testBlock.allowChain(mock(CommonServerMessageBlockRequest.class)));

     */
    @Override
    public int size() {
        return 0;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockResponse#isAsync()
     */
    @Override
    public boolean isAsync() {
        return false;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockRequest#isResponseAsync()
     */
    @Override

        this.readSize = readSize;
    }

    /**
     * Checks whether this message is an asynchronous message.
     *
     * @return the async
     */
    public boolean isAsync() {
        return this.async;
    }

    /**
     * @param command
     *            the command to set
     */
    @Override
    public final void setCommand(final int command) {