// of the surrogate characters lie within the safe range). It is important
    // not to accidentally treat this as a sequence of safe characters.
    String unsafeInput = "\uDBFF\uDFFF"; // 0x10FFFF
    assertThat(surrogateEscaper.escape(unsafeInput)).isEqualTo("X");
  }

  }

  @Test fun outOfBounds() {
    assertFailsWith<IllegalArgumentException> {
      table.map(-1, Buffer())
    }
    table.map(0, Buffer()) // Lowest legal code point.
    table.map(0x10ffff, Buffer()) // Highest legal code point.
    assertFailsWith<IllegalArgumentException> {
      table.map(0x110000, Buffer())
    }
  }

  @Test fun binarySearchEvenSizedRange() {

        streamId = streamId,
        length = length + 4,
        type = TYPE_PUSH_PROMISE,
        flags = if (byteCount == length.toLong()) FLAG_END_HEADERS else 0,
      )
      sink.writeInt(promisedStreamId and 0x7fffffff)
      sink.write(hpackBuffer, length.toLong())

      if (byteCount > length) writeContinuationFrames(streamId, byteCount - length)
    }
  }

  @Throws(IOException::class)
  fun flush() {

   */
  internal const val PAYLOAD_SHORT = 126

  /** Maximum length of a frame payload to be denoted as [PAYLOAD_SHORT]. */
  internal const val PAYLOAD_SHORT_MAX = 0xffffL

  /**
   * Value for [B1_MASK_LENGTH] which indicates the next eight bytes are the unsigned
   * length.
   */
  internal const val PAYLOAD_LONG = 127

      int count = 0;
      // originally was 2 * Math.log(...), making it try more times to avoid flakiness issues
      int maxCount = (int) (4 * Math.log(2 * keyBits * hashBits) + 1);
      while (same != 0xffffffff || diff != 0xffffffff) {
        int key1 = rand.nextInt();
        // flip input bit for key2
        int key2 = key1 ^ (1 << i);
        // get hashes
        int hash1 = function.hashInt(key1).asInt();

    frameLength = (b1 and B1_MASK_LENGTH).toLong()
    if (frameLength == PAYLOAD_SHORT.toLong()) {
      frameLength = (source.readShort() and 0xffff).toLong() // Value is unsigned.
    } else if (frameLength == PAYLOAD_LONG.toLong()) {
      frameLength = source.readLong()
      if (frameLength < 0L) {
        throw ProtocolException(

  private final int value;

  private UnsignedInteger(int value) {
    // GWT doesn't consistently overflow values to make them 32-bit, so we need to force it.
    this.value = value & 0xffffffff;
  }

  /**
   * Returns an {@code UnsignedInteger} corresponding to a given bit representation. The argument is
   * interpreted as an unsigned 32-bit value. Specifically, the sign bit of {@code bits} is

      int count = 0;
      // originally was 2 * Math.log(...), making it try more times to avoid flakiness issues
      int maxCount = (int) (4 * Math.log(2 * keyBits * hashBits) + 1);
      while (same != 0xffffffff || diff != 0xffffffff) {
        int key1 = rand.nextInt();
        // flip input bit for key2
        int key2 = key1 ^ (1 << i);
        // get hashes
        int hash1 = function.hashInt(key1).asInt();

	TST $0xfffffff0, LR                        // TST $4294967280, R30          // df6f7cf2
	TSTW R10@>21, R2                           // 5f54ca6a
	TST R17<<11, R24                           // 1f2f11ea
	ANDSW $0x80000007, R9, ZR                  // ANDSW   $2147483655, R9, ZR   // 3f0d0172
	ANDS $0xfffffff0, LR, ZR                   // ANDS    $4294967280, R30, ZR  // df6f7cf2

	MOV	$0x7ffff000, X5		// MOV	$2147479552, X5			// b7f2ff7f
	MOV	$-0x7ffff000, X5	// MOV	$-2147479552, X5		// b7120080
	MOV	$0x7fffffff, X5		// MOV	$2147483647, X5			// b70200809b82f2ff
	MOV	$-0x7fffffff, X5	// MOV	$-2147483647, X5		// b70200809b821200

	// Converted to load and shift(s)
	MOV	$0xffffffff, X5		// MOV	$4294967295, X5			// 9302f0ff93d20202
	MOV	$0x100000000, X5	// MOV	$4294967296, X5			// 9302100093920202