// is masked in order to correspond to the current table size. For example, if the table size
  // is 128 then the mask is 127 == 0x7f, keeping the bottom 7 bits of the hash value.
  // If a key hashes to 0x89abcdef the mask reduces it to 0x89abcdef & 0x7f == 0x6f. We'll call this
  // the "short hash".
  //
  // The `keys`, `values`, and `entries` arrays always have the same size as each other. They can be

    // Confirm the data strings are ASCII.
    for (dataString in listOf<String>(compactTable.sections, compactTable.ranges)) {
      for (codePoint in dataString.codePoints()) {
        assertThat(codePoint and 0x7f).isEqualTo(codePoint)
      }
    }

    // Confirm the sections are increasing.
    val rangesIndices = mutableListOf<Int>()
    val rangesOffsets = mutableListOf<Int>()

                Arguments.of(new byte[] { (byte) 0x0F }, "0f"), Arguments.of(new byte[] { (byte) 0x10 }, "10"),
                Arguments.of(new byte[] { (byte) 0xAB }, "ab"),
                Arguments.of(new byte[] { (byte) 0x7F, (byte) 0x80, (byte) 0xFF }, "7f80ff"));
    }

    // Verifies that toString() formats bytes as lower-case hex with zero-padding

      return plusSign;
    } else if (cp <= 0x7F) {
      // Single byte UTF-8 characters
      // Start with "%--" and fill in the blanks
      char[] dest = new char[3];
      dest[0] = '%';
      dest[2] = upperHexDigits[cp & 0xF];
      dest[1] = upperHexDigits[cp >>> 4];
      return dest;
    } else if (cp <= 0x7ff) {
      // Two byte UTF-8 characters [cp >= 0x80 && cp <= 0x7ff]

  val sourceCodePoint1: Int,
  val type: Int,
  val mappedTo: ByteString,
) {
  val section: Int
    get() = sourceCodePoint0 and 0x1fff80

  val rangeStart: Int
    get() = sourceCodePoint0 and 0x7f

  val hasSingleSourceCodePoint: Boolean
    get() = sourceCodePoint0 == sourceCodePoint1

  val spansSections: Boolean
    get() = (sourceCodePoint0 and 0x1fff80) != (sourceCodePoint1 and 0x1fff80)

        val codepointDelta = (b1 and 0xF shl 14) or (b2 shl 7) or b3
        sink.writeUtf8CodePoint(codePoint - codepointDelta)
      }
      in 80..95 -> {
        // Mapped inline as codePoint delta to add
        val b2 = ranges[rangesIndex + 2].code
        val b3 = ranges[rangesIndex + 3].code

        val codepointDelta = (b1 and 0xF shl 14) or (b2 shl 7) or b3

    testDecodes(base64(), "Zg====", "f");
  }

  public void testBase64InvalidDecodings() {
    // These contain bytes not in the decodabet.
    assertFailsToDecode(base64(), "A\u007f", "Unrecognized character: 0x7f");
    assertFailsToDecode(base64(), "Wf2!", "Unrecognized character: !");
    // This sentence just isn't base64() encoded.
    assertFailsToDecode(base64(), "let's not talk of love or chains!");

        key8[0] = (byte) (key7[0] >> 1 & 0xff);
        key8[1] = (byte) (((key7[0] & 0x01) << 6 | (key7[1] & 0xff) >> 2 & 0xff) & 0xff);
        key8[2] = (byte) (((key7[1] & 0x03) << 5 | (key7[2] & 0xff) >> 3 & 0xff) & 0xff);
        key8[3] = (byte) (((key7[2] & 0x07) << 4 | (key7[3] & 0xff) >> 4 & 0xff) & 0xff);
        key8[4] = (byte) (((key7[3] & 0x0F) << 3 | (key7[4] & 0xff) >> 5 & 0xff) & 0xff);

        assertEquals(0, cap.getValue().length, "Optimistic token must be zero-length");
    }

    @ParameterizedTest
    @ValueSource(bytes = { 0x00, 0x7F, (byte) 0xFF })
    @DisplayName("initSecContext throws on invalid token type")
    void testInitSecContextInvalidTokenType(byte firstByte) throws Exception {
        SpnegoContext ctx = newContext();

        byte[] buffer = new byte[100];
        int bufferIndex = 0;

        // Reserved bytes
        buffer[bufferIndex] = (byte) 0xFF;
        buffer[bufferIndex + 1] = (byte) 0xFF;
        buffer[bufferIndex + 2] = (byte) 0xFF;

        // Set fields with negative values (should be treated as unsigned)
        SMBUtil.writeInt4(-1, buffer, bufferIndex + 3); // Should be read as 0xFFFFFFFF