// Read the header.
      val header = Buffer()
      fileOperator.read(0, header, FILE_HEADER_SIZE)
      val prefix = header.readByteString(PREFIX_CLEAN.size.toLong())
      if (prefix != PREFIX_CLEAN) throw IOException("unreadable cache file")
      val upstreamSize = header.readLong()
      val metadataSize = header.readLong()

      // Read the metadata.
      val metadataBuffer = Buffer()

        // make sure we don't exceed input's allocated size/length
        if (offset < 0 || len < 0 || (long) offset + len > input.length) {
            throw new ArrayIndexOutOfBoundsException();
        }

        // compute number of bytes still unhashed; ie. present in buffer
        int bufferNdx = (int) (count % BLOCK_LENGTH);

    void testToStringWithNullSID() {
        ace.allow = true;
        ace.access = 0x001200A9;
        ace.flags = 0x00;
        ace.sid = null;

        // This should throw NullPointerException as the current implementation doesn't handle null SID
        assertThrows(NullPointerException.class, () -> ace.toString());
    }

    @Test
    @DisplayName("Test decode creates new SID instance")

        }
        if (responseBodyFile != null) {
            try {
                return new FileInputStream(responseBodyFile);
            } catch (final FileNotFoundException e) {
                throw new IORuntimeException(e);
            }
        }
        return null;
    }

    /**
     * Sets the response body from a byte array.
     *

        int len = Encdec.dec_uint32le(this.buf, i);
        i += 12;
        if (len != 0) {
            len--;
            final int size = len * 2;
            if (size < 0 || size > 0xFFFF) {
                throw new NdrException(NdrException.INVALID_CONFORMANCE);
            }
            val = Strings.fromUNIBytes(this.buf, i, size);
            i += size + 2;
        }
        advance(i - this.index);
        return val;

                    ImmutableList.of("foo", "bar"),
                    new Function<String, String>() {
                      @Override
                      public String apply(String input) {
                        throw new IndexOutOfBoundsException();
                      }
                    })
                .toArray());
  }

  private static void assertTransformListIterator(List<String> list) {

        final int start = bufferIndex;
        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);

        if (structureSize != 89) {
            throw new SMBProtocolDecodingException("Structure size is not 89");
        }

        this.oplockLevel = buffer[bufferIndex + 2];
        this.openFlags = buffer[bufferIndex + 3];
        bufferIndex += 4;

            @Override
            public int decode(byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {
                if (buffer == null || buffer.length < bufferIndex + 4) {
                    throw new SMBProtocolDecodingException("Buffer too small");
                }
                return 4;
            }

            @Override
            public int encode(byte[] dst, int dstIndex) {

            try {
                decoded.decode(buffer, 200, encoded);
                assertArrayEquals(ciphers, decoded.getCiphers());
            } catch (SMBProtocolDecodingException e) {
                fail("Should not throw exception: " + e.getMessage());
            }
        }

        @Test
        @DisplayName("Should verify cipher constants")
        void testCipherConstants() {

      for (RoundingMode mode : modes) {
        Double previous = expectedValues.put(mode, expectedValue);
        if (previous != null) {
          throw new AssertionError();
        }
      }
      return this;
    }

    @CanIgnoreReturnValue
    RoundToDoubleTester roundUnnecessaryShouldThrow() {
      unnecessaryShouldThrow = true;