t.Errorf("%s: buf.Flush = %v", context, e)
			}

			written := w.Bytes()
			if len(written) != nwrite {
				t.Errorf("%s: %d bytes written", context, len(written))
			}
			for l := 0; l < len(written); l++ {
				if written[l] != data[l] {
					t.Errorf("wrong bytes written")
					t.Errorf("want=%q", data[:len(written)])
					t.Errorf("have=%q", written)
				}
			}
		}
	}
}

        int bodyOffset = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;

        // Encode the full message to set headerStart
        request.encode(buffer, headerStart);

        // Then - verify the body was written correctly
        byte[] pathBytes = TEST_PATH.getBytes(StandardCharsets.UTF_16LE);

        // Verify structure size (9)
        assertEquals(9, SMBUtil.readInt2(buffer, bodyOffset));

    void testWriteHeaderWireFormat() {
        packet.type = SessionServicePacket.SESSION_REQUEST;
        packet.length = 0x1234;

        byte[] dst = new byte[10];
        int written = packet.writeHeaderWireFormat(dst, 0);

        assertEquals(4, written);
        assertEquals((byte) SessionServicePacket.SESSION_REQUEST, dst[0]);
        assertEquals((byte) 0x00, dst[1]); // No extended bit
        assertEquals((byte) 0x12, dst[2]);

            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

         * If the item is being updated, it writes the new version.
         *
         * @param oldItem The original item from the dictionary.
         * @return The written item, or null if the item was deleted.
         * @throws DictionaryException if the file was updated concurrently.
         */
        public StemmerOverrideItem write(final StemmerOverrideItem oldItem) {
            try {

            SMBUtil.writeInt2(0, readBuffer, 12); // Reserved bytes

            // When
            int written = response.writeBytesWireFormat(writeBuffer, 5);
            int read = response.readBytesWireFormat(readBuffer, 10);

            // Then
            assertEquals(0, written);
            assertEquals(4, read);
        }

        @Test

func (b *Writer) AvailableBuffer() []byte {
	return b.buf[b.n:][:0]
}

// Buffered returns the number of bytes that have been written into the current buffer.
func (b *Writer) Buffered() int { return b.n }

// Write writes the contents of p into the buffer.
// It returns the number of bytes written.
// If nn < len(p), it also returns an error explaining
// why the write is short.
func (b *Writer) Write(p []byte) (nn int, err error) {

  private var socket: Socket? = null

  /** Outgoing pongs in the order they should be written. */
  private val pongQueue = ArrayDeque<ByteString>()

  /** Outgoing messages and close frames in the order they should be written. */
  private val messageAndCloseQueue = ArrayDeque<Any>()

  /** The total size in bytes of enqueued but not yet transmitted messages. */

- Delivers a complete, valuable change (feature, bug fix, or improvement).
- Has a concise title (e.g., `[S3] Fix bucket policy parsing #1234`) and a summary with context, referencing issues (e.g., `#1234`).
- Contains well-written, logical commits explaining *why* changes were made (e.g., “Add S3 bucket tagging support so that users can organize resources efficiently”).

import org.jspecify.annotations.NullUnmarked;

/**
 * A generator of {@code TestSuite} instances for testing {@code ByteSink} implementations.
 * Generates tests of all methods on a {@code ByteSink} given various inputs written to it as well
 * as sub-suites for testing the {@code CharSink} view in the same way.
 *
 * @author Colin Decker
 */
@AndroidIncompatible // TODO(b/230620681): Make this available (even though we won't run it).