// Then
        assertEquals(SMB2_CANCEL, request.getCommand());
        assertEquals(mid, request.getMid());
        assertEquals(asyncId, request.getAsyncId());
        assertTrue((request.getFlags() & SMB2_FLAGS_ASYNC_COMMAND) != 0, "Async flag should be set when asyncId is non-zero");
    }

    @Test

    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockRequest#isResponseAsync()
     */
    @Override
    public boolean isResponseAsync() {
        return getAsyncId() != 0;
    }

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

            Smb2CancelRequest smb2Cancel = (Smb2CancelRequest) cancelRequest;
            assertEquals(mid, smb2Cancel.getMid());
            assertEquals(asyncId, smb2Cancel.getAsyncId());
        }
    }

    @Nested
    @DisplayName("Chain Operation Tests")
    class ChainOperationTests {

        @Test

        }

        @Test
        @DisplayName("Should get and set async ID")
        void testAsyncIdProperty() {
            assertEquals(0, testMessage.getAsyncId());
            testMessage.setAsyncId(67890L);
            assertEquals(67890L, testMessage.getAsyncId());
        }

        @Test
        @DisplayName("Should get and set credit")
        void testCreditProperty() {

            this.next.setTreeId(treeId);
        }
    }

    /**
     * Gets the asynchronous identifier for this message.
     *
     * @return the asyncId
     */
    public final long getAsyncId() {
        return this.asyncId;
    }

    /**
     * Sets the asynchronous identifier for this message.
     *
     * @param asyncId
     *            the asyncId to set
     */

        synchronized (resp) {
            if (resp.isAsync() && !resp.isAsyncHandled() && resp.getStatus() == NtStatus.NT_STATUS_PENDING && resp.getAsyncId() != 0) {
                resp.setAsyncHandled(true);
                final boolean first = !req.isAsync();
                req.setAsyncId(resp.getAsyncId());
                final Long exp = resp.getExpiration();
                if (exp != null) {