when(mockSmbPipeHandleInternal.sendrecv(buf, 0, 50, inB, 4280)).thenReturn(40);

            int result = handle.doSendReceiveFragment(buf, 0, 50, inB);
            assertEquals(40, result);
            verify(mockSmbPipeHandleInternal).sendrecv(buf, 0, 50, inB, 4280);
        }

        @Test
        @DisplayName("Should handle multiple receives for fragment")

            MockCreateContextResponse mock = new MockCreateContextResponse("TEST");
            byte[] buffer = new byte[100];

            int result = mock.decode(buffer, 0, 50);
            assertEquals(0, result);
        }

        @ParameterizedTest
        @ValueSource(strings = { "", "SHORT", "VERY_LONG_CONTEXT_NAME_FOR_TESTING", "特殊字符" })

        1,
        3,
        new long[] {GREATEST - 1, GREATEST - 2, 1, 2});
  }

  public void testDivide() {
    assertThat(UnsignedLongs.divide(14, 5)).isEqualTo(2);
    assertThat(UnsignedLongs.divide(0, 50)).isEqualTo(0);
    assertThat(UnsignedLongs.divide(0xfffffffffffffffeL, 0xfffffffffffffffdL)).isEqualTo(1);
    assertThat(UnsignedLongs.divide(0xfffffffffffffffdL, 0xfffffffffffffffeL)).isEqualTo(0);

        byte[] buffer = new byte[100];

        assertThrows(NullPointerException.class, () -> nullBufferResponse.readDataWireFormat(buffer, 0, 50));
    }

    @Test
    void testReadDataWireFormatEmptyOutputBuffer() throws SMBProtocolDecodingException {
        // Test with empty outputBuffer

            Trans2QueryPathInformationResponse resp = new Trans2QueryPathInformationResponse(0x999);

            byte[] buffer = new byte[100];
            int result = resp.readDataWireFormat(buffer, 0, 50);
            assertEquals(0, result);
            assertNull(resp.info);
        }
    }

    @Nested
    @DisplayName("Mock Interaction Tests")
    class MockInteractionTests {

        @Test

        // Fill test pattern
        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = (byte) (i % 256);
        }

        int bytesConsumed = response.decode(buffer, 0, 50);

        assertEquals(28, bytesConsumed, "Should consume exactly 28 bytes regardless of extra length");

        byte[] resumeKey = response.getResumeKey();

    @DisplayName("readSetupWireFormat with various parameters should return 0")
    void testReadSetupWireFormatVariousParams() {
        // Test with different buffer sizes and offsets
        int[][] testCases = { { 0, 50 }, // No offset, 50 bytes
                { 10, 90 }, // 10 byte offset, 90 bytes
                { 50, 50 }, // 50 byte offset, 50 bytes
                { 0, 0 }, // Empty buffer
                { 100, 100 } // Large values

		metricsGroupOpts: opts,
	}
	mg.RegisterRead(func(ctx context.Context) (metrics []MetricV2) {
		objLayer := newObjectLayerFn()
		if objLayer == nil {
			return
		}

		metrics = make([]MetricV2, 0, 50)
		dataUsageInfo, err := loadDataUsageFromBackend(ctx, objLayer)
		if err != nil {
			metricsLogIf(ctx, err)
			return
		}

		// data usage has not captured any data yet.

        qrList.calculatePageInfo();

        // start=10, offset=5, so startWithOffset = 10-5 = 5
        // currentPageNumber = start / pageSize + 1 = 10 / 20 + 1 = 1
        // existPrevPage = startWithOffset > 0 = 5 > 0 = true
        assertEquals(1, qrList.getCurrentPageNumber());
        assertTrue(qrList.isExistNextPage());
        assertTrue(qrList.isExistPrevPage());
        assertEquals(11, qrList.getCurrentStartRecordNumber());

        void testSignSignatureExceedsBuffer() {
            byte[] data = new byte[50]; // Too small for signature field
            assertThrows(IllegalArgumentException.class, () -> digest.sign(data, 0, 50, request, response),
                    "Should throw IllegalArgumentException when signature field exceeds buffer");
        }

        @Test
        @DisplayName("Should handle null data buffer in verify method")