assertFalse(result.isEmpty());
        assertEquals(size * 2, result.length()); // Each byte becomes 2 hex chars
    }

    @Test
    @DisplayName("Should format with specific offset and length")
    void testHexdumpWithOffsetAndLength() {
        // Given
        byte[] data = createTestData(64);
        int offset = 16;
        int length = 32;

        // When

        }
        if (isDirect) {
            out.writeDirect(buf, off, length, 1);
            return;
        }
        out.write(buf, off, length);
    }

    @Override
    protected void doReceiveFragment(final byte[] buf, final boolean isDirect) throws IOException {
        int off, flags, length;

        if (buf.length < max_recv) {
            throw new IllegalArgumentException("buffer too small");
        }

        firstInstance.decode(originalBuffer, 0, originalBuffer.length);

        // Encode from first instance
        byte[] encodedBuffer = new byte[8];
        firstInstance.encode(encodedBuffer, 0);

        // Decode into second instance
        FileInternalInfo secondInstance = new FileInternalInfo();
        secondInstance.decode(encodedBuffer, 0, encodedBuffer.length);

        // Verify both instances have same values

    void testReadLengthMaximum() {
        byte[] src = { (byte) 0x00, (byte) 0x01, (byte) 0xFF, (byte) 0xFF };
        int length = SessionServicePacket.readLength(src, 0);

        assertEquals(0x01FFFF, length);
    }

    @Test
    @DisplayName("readLength should handle zero length")
    void testReadLengthZero() {
        byte[] src = { (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 };

      offset = min(offset, this.length);
      length = min(length, this.length - offset);
      int newOffset = this.offset + (int) offset;
      return new ByteArrayByteSource(bytes, newOffset, (int) length);
    }

    @Override
    public String toString() {
      return "ByteSource.wrap("

   */
  public static char[] concat(char[]... arrays) {
    long length = 0;
    for (char[] array : arrays) {
      length += array.length;
    }
    char[] result = new char[checkNoOverflow(length)];
    int pos = 0;
    for (char[] array : arrays) {
      System.arraycopy(array, 0, result, pos, array.length);
      pos += array.length;
    }
    return result;
  }

   */
  public static float[] concat(float[]... arrays) {
    long length = 0;
    for (float[] array : arrays) {
      length += array.length;
    }
    float[] result = new float[checkNoOverflow(length)];
    int pos = 0;
    for (float[] array : arrays) {
      System.arraycopy(array, 0, result, pos, array.length);
      pos += array.length;
    }
    return result;
  }

            buffer[SmbConstants.SMB1_HEADER_LENGTH] = 0;
            SMBUtil.writeInt2(0, buffer, SmbConstants.SMB1_HEADER_LENGTH + 1);

            int length = testBlock.decode(buffer, 0);

            assertNotNull(testBlock.getRawPayload());
            assertEquals(length, testBlock.getRawPayload().length);
        }
    }

    @Nested

    }

    @Override
    public K[] createKeyArray(int length) {
      return ((TestMultimapGenerator<K, V, M>) multimapGenerator.getInnerGenerator())
          .createKeyArray(length);
    }

    @SuppressWarnings("unchecked")
    @Override
    public Collection<V>[] createValueArray(int length) {
      return (Collection<V>[]) new Collection<?>[length];
    }
  }

   */
  public static boolean equalsIgnoreCase(CharSequence s1, CharSequence s2) {
    // Calling length() is the null pointer check (so do it before we can exit early).
    int length = s1.length();
    if (s1 == s2) {
      return true;
    }
    if (length != s2.length()) {
      return false;
    }
    for (int i = 0; i < length; i++) {
      char c1 = s1.charAt(i);
      char c2 = s2.charAt(i);
      if (c1 == c2) {