request.writeBytesWireFormat(smallBuffer, 0);
        });
    }

    @Test
    @DisplayName("Test file ID boundary values")
    void testFileIdBoundaryValues() {
        // Test with file ID having maximum byte values
        byte[] maxFileId = new byte[16];
        Arrays.fill(maxFileId, (byte) 0xFF);
        Smb2FlushRequest maxRequest = new Smb2FlushRequest(mockConfig, maxFileId);

        SMBUtil.writeInt4(432, buffer, bufferIndex + 4); // 512 - 80

        response = spy(response);
        when(response.getHeaderStart()).thenReturn(0);

        // Fill the entire data area with zero (no valid entries)
        for (int i = dataOffset; i < 512; i++) {
            buffer[i] = 0;
        }

        int result = response.readBytesWireFormat(buffer, bufferIndex);

}

var errNegativeRead = errors.New("bufio: reader returned negative count from Read")

// fill reads a new chunk into the buffer.
func (b *Reader) fill() {
	// Slide existing data to beginning.
	if b.r > 0 {
		copy(b.buf, b.buf[b.r:b.w])
		b.w -= b.r
		b.r = 0
	}

	if b.w >= len(b.buf) {
		panic("bufio: tried to fill full buffer")
	}

	// Read new data: try a limited number of times.

        request.setCloseFlags(0x0001);

        // Change file ID
        byte[] newFileId1 = new byte[16];
        Arrays.fill(newFileId1, (byte) 0xAA);
        request.setFileId(newFileId1);

        // Change flags
        request.setCloseFlags(0x0000);

        // Change file ID again
        byte[] newFileId2 = new byte[16];
        Arrays.fill(newFileId2, (byte) 0xBB);
        request.setFileId(newFileId2);

    @DisplayName("Release stores buffer for reuse and zeroes its contents")
    void releaseStoresAndZeroesBuffer() {
        BufferCacheImpl impl = new BufferCacheImpl(2, 10);

        byte[] b = new byte[10];
        // Fill with non-zero to verify zeroing on release
        for (int i = 0; i < b.length; i++) {
            b[i] = (byte) (i + 1);
        }

        // Act: release should zero immediately to avoid leaks

        By asking questions in a structured way (following this) it will be much easier to help you.

        And there's a high chance that you will find the solution along the way and you won't even have to submit it and wait for an answer. 😎

    void testWithLargeBuffers() {
        // Test with large byte arrays
        byte[] largeRequestBuffer = new byte[1024];
        byte[] largeResponseBuffer = new byte[2048];

        // Fill with some test data
        for (int i = 0; i < largeRequestBuffer.length; i++) {
            largeRequestBuffer[i] = (byte) (i % 256);
        }
        for (int i = 0; i < largeResponseBuffer.length; i++) {

    void testReadBytesWireFormatPreservesBuffer() throws SMBProtocolDecodingException {
        byte[] buffer = new byte[1024];
        int bufferIndex = 0;

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

        // Set structure size to 2
        SMBUtil.writeInt2(2, buffer, bufferIndex);

        }

        @Test
        @DisplayName("Should not modify bytes outside written range")
        void testWriteBytesDoesNotOverflow() {
            byte[] buffer = new byte[100];
            // Fill buffer with known values
            for (int i = 0; i < buffer.length; i++) {
                buffer[i] = (byte) 0xFF;
            }

            int startIndex = 50;

      FakeTicker ticker,
      String keyPrefix,
      long ttl) {
    loader.setKeyPrefix(keyPrefix);

    int shift1 = 10 + VALUE_PREFIX;
    loader.setValuePrefix(shift1);
    // fill with initial data
    for (int i = 0; i < 10; i++) {
      assertThat(cache.getUnchecked(keyPrefix + i)).isEqualTo(i + shift1);
    }
    assertThat(CacheTesting.expirationQueueSize(cache)).isEqualTo(10);