dataUsageCacheVerV2      = 2
	dataUsageCacheVerV1      = 1
)

// serialize the contents of the cache.
func (d *dataUsageCache) serializeTo(dst io.Writer) error {
	// Add version and compress.
	_, err := dst.Write([]byte{dataUsageCacheVerCurrent})
	if err != nil {
		return err
	}
	enc, err := zstd.NewWriter(dst,
		zstd.WithEncoderLevel(zstd.SpeedFastest),
		zstd.WithWindowSize(1<<20),

            assertArrayEquals(testFileId, actualFileId);

            // Verify that info.encode was called
            verify(mockInfo, times(1)).encode(any(byte[].class), anyInt());

            // Verify total bytes written
            assertTrue(bytesWritten > 32); // At least the fixed part plus some info
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @ParameterizedTest

	DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error)

	// WalkDir will walk a directory on disk and return a metacache stream on wr.
	WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) error

	// Metadata operations
	DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) error

            }
            if (logger.isDebugEnabled()) {
                logger.debug("Finished to write {}", url);
            }
        });
        return response;
    }

    /**
     * Writes no-cache headers to the response.
     *
     * @param response the stream response
     * @param responseData the response data
     */

  }

  /**
   * ReadWriteLock implementation whose read and write locks retain a reference back to this lock.
   * Otherwise, a reference to just the read lock or just the write lock would not suffice to ensure
   * the {@code ReadWriteLock} is retained.
   */
  private static final class WeakSafeReadWriteLock implements ReadWriteLock {
    private final ReadWriteLock delegate;

            this.buf[this.index - i] = value;
            i--;
        }
        return n;
    }

    /**
     * Writes an octet array to the buffer.
     *
     * @param b the byte array to write
     * @param i the starting index in the array
     * @param l the number of bytes to write
     */
    public void writeOctetArray(final byte[] b, final int i, final int l) {

        assertTrue(stats.getAverageWriteLatencyMicros() > 0, "Write latency should be positive");

        System.out.println("RDMA Statistics: " + stats);

        // Test statistics reset functionality
        stats.reset();
        assertEquals(0, stats.getRdmaReads(), "Reads should be reset to 0");
        assertEquals(0, stats.getRdmaWrites(), "Writes should be reset to 0");

pkg compress/zlib, func NewWriter(io.Writer) *Writer
pkg compress/zlib, func NewWriterLevel(io.Writer, int) (*Writer, error)
pkg compress/zlib, func NewWriterLevelDict(io.Writer, int, []uint8) (*Writer, error)
pkg compress/zlib, method (*Writer) Close() error
pkg compress/zlib, method (*Writer) Flush() error
pkg compress/zlib, method (*Writer) Write([]uint8) (int, error)
pkg compress/zlib, type Writer struct

        // Assert
        assertEquals(4, bytesWritten);
        assertEquals(SmbComTransaction.TRANS_TRANSACT_NAMED_PIPE, dst[0]);
        assertEquals(0x00, dst[1]);

        // Verify FID is written correctly (little-endian)
        int writtenFid = SMBUtil.readInt2(dst, 2);
        assertEquals(TEST_FID, writtenFid);
    }

    @Test
    @DisplayName("Test writeDataWireFormat with sufficient buffer")

        // Then
        assertNotNull(transCallNamedPipe);
        assertEquals(TEST_PIPE_NAME, transCallNamedPipe.name);
    }

    @Test
    @DisplayName("Test writeSetupWireFormat writes correct bytes")
    void testWriteSetupWireFormat() {
        // Given
        transCallNamedPipe = new TransCallNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_DATA, 0, TEST_DATA.length);
        byte[] dst = new byte[10];