UnsignedLong value = UnsignedLong.fromLongBits(l);
        assertThat(value.toString(radix)).isEqualTo(value.bigIntegerValue().toString(radix));
      }
    }
  }

  public void testToStringRadixQuick() {
    int[] radices = {2, 3, 5, 7, 10, 12, 16, 21, 31, 36};
    for (int radix : radices) {
      for (long l : TEST_LONGS) {
        UnsignedLong value = UnsignedLong.fromLongBits(l);

        UnsignedLong value = UnsignedLong.fromLongBits(l);
        assertThat(value.toString(radix)).isEqualTo(value.bigIntegerValue().toString(radix));
      }
    }
  }

  public void testToStringRadixQuick() {
    int[] radices = {2, 3, 5, 7, 10, 12, 16, 21, 31, 36};
    for (int radix : radices) {
      for (long l : TEST_LONGS) {
        UnsignedLong value = UnsignedLong.fromLongBits(l);

    return fromLongBits(UnsignedLongs.parseUnsignedLong(string, radix));
  }

  /**
   * Returns the result of adding this and {@code val}. If the result would have more than 64 bits,
   * returns the low 64 bits of the result.
   *
   * @since 14.0
   */
  public UnsignedLong plus(UnsignedLong val) {
    return fromLongBits(this.value + checkNotNull(val).value);
  }

  /**

  @Generates
  UnsignedInteger generateUnsignedInteger() {
    return UnsignedInteger.fromIntBits(generateInt());
  }

  @Generates
  UnsignedLong generateUnsignedLong() {
    return UnsignedLong.fromLongBits(generateLong());
  }

  @Generates
  BigInteger generateBigInteger() {
    return BigInteger.valueOf(generateInt());
  }

  @Generates
  BigDecimal generateBigDecimal() {

  @Generates
  UnsignedInteger generateUnsignedInteger() {
    return UnsignedInteger.fromIntBits(generateInt());
  }

  @Generates
  UnsignedLong generateUnsignedLong() {
    return UnsignedLong.fromLongBits(generateLong());
  }

  @Generates
  BigInteger generateBigInteger() {
    return BigInteger.valueOf(generateInt());
  }

  @Generates
  BigDecimal generateBigDecimal() {