int read3 = response.readBytesWireFormat(buffer, 0);

        // Then - all reads should return same result
        assertEquals(4, read1);
        assertEquals(4, read2);
        assertEquals(4, read3);
    }

    @Test
    @DisplayName("Should validate structure size before processing")
    void testStructureSizeValidation() {
        // Given various invalid structure sizes

        // Test user boost
        item.setUserBoost(2.0f);
        assertEquals(2.0f, item.getUserBoost(), 0.001f);

        // Test readings
        String[][] newReadings = { { "read1", "read2" }, { "read3" } };
        item.setReadings(newReadings);
        assertArrayEquals(newReadings, item.getReadings());

        // Test fields
        String[] fields = { "field1", "field2" };

            SMBUtil.writeInt2(4, buffer, 0);

            // When
            int read1 = response1.readBytesWireFormat(buffer, 0);
            int read2 = response2.readBytesWireFormat(buffer, 0);

            // Then
            assertEquals(4, read1);
            assertEquals(4, read2);
        }
    }

    @Nested
    @DisplayName("Edge case tests")
    class EdgeCaseTests {

    byte[] buf1 = createBuffer();
    byte[] buf2 = createBuffer();
    while (true) {
      int read1 = read(in1, buf1, 0, BUFFER_SIZE);
      int read2 = read(in2, buf2, 0, BUFFER_SIZE);
      if (read1 != read2 || !arraysEqual(buf1, buf2, read1)) {
        return false;
      } else if (read1 != BUFFER_SIZE) {
        return true;
      }
    }
  }

        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(2) // First read returns 2 bytes
                .thenReturn(2) // Second read returns 2 bytes
                .thenReturn(1); // Third read returns 1 byte

        byte[] buffer = new byte[10];
        int bytesRead = SessionServicePacket.readn(mockInputStream, buffer, 0, 5);

        assertEquals(5, bytesRead);

}

var errUnreadByte = errors.New("bytes.Buffer: UnreadByte: previous operation was not a successful read")

// UnreadByte unreads the last byte returned by the most recent successful
// read operation that read at least one byte. If a write has happened since
// the last read, if the last read returned an error, or if the read read zero
// bytes, UnreadByte returns an error.
func (b *Buffer) UnreadByte() error {

    static LogStream log = LogStream.getInstance();

    /**
     * Reads exactly len bytes from the input stream into the buffer.
     *
     * @param in the input stream to read from
     * @param b the buffer to read into
     * @param off the offset in the buffer to start writing
     * @param len the number of bytes to read
     * @return the number of bytes actually read
     * @throws IOException if an I/O error occurs
     */

  }

  /**
   * Reads and discards data from the given {@code Readable} until the end of the stream is reached.
   * Returns the total number of chars read. Does not close the stream.
   *
   * @since 20.0
   */
  @CanIgnoreReturnValue
  public static long exhaust(Readable readable) throws IOException {
    long total = 0;
    long read;
    CharBuffer buf = createBuffer();

        }

        // Fill the receive buffer without holding any locks.
        val read = source.read(receiveBuffer, remainingByteCount)
        if (read == -1L) throw EOFException()
        remainingByteCount -= read

        // Move the received data to the read buffer to the reader can read it. If this source has
        // been closed since this read began we must discard the incoming data and tell the
        // connection we've done so.

            ChannelUtil.read(channel, buffer);
            return buffer.array();
        } finally {
            CloseableUtil.close(is);
        }
    }

    /**
     * Reads text from a file using the default encoding.
     *
     * @param path
     *            The file path. Must not be {@literal null} or empty.
     * @return The text read from the file.
     */