data = {"value": Decimal("NaN")}
    assert isnan(jsonable_encoder(data)["value"])


def test_decimal_encoder_infinity():
    data = {"value": Decimal("Infinity")}
    assert isinf(jsonable_encoder(data)["value"])
    data = {"value": Decimal("-Infinity")}
    assert isinf(jsonable_encoder(data)["value"])


def test_encode_deque_encodes_child_models():
    class Model(BaseModel):
        test: str

*p256Element) int { var acc uint64 for i := range a { acc |= a[i] ^ b[i] } return uint64IsZero(acc) } // isInfinity returns 1 if p is the point at infinity and 0 otherwise. func (p *P256Point) isInfinity() int { return p256Equal(&p.z, &p256Zero) } // Bytes returns the uncompressed or infinity encoding of p, as specified in // SEC 1, Version 2.0, Section 2.3.3. Note that the encoding of the point at // infinity is shorter than all other encodings. func (p *P256Point) Bytes() []byte { // This function is outlined...

    checkTryParse(Double.POSITIVE_INFINITY, "Infinity");
    checkTryParse(Double.POSITIVE_INFINITY, "+Infinity");
    checkTryParse(Double.NEGATIVE_INFINITY, "-Infinity");
  }

  private static final String[] BAD_TRY_PARSE_INPUTS = {
    "",
    "+-",
    "+-0",
    " 5",
    "32 ",
    " 55 ",
    "infinity",
    "POSITIVE_INFINITY",
    "0x9A",
    "0x9A.bE-5",
    ".",

  final double roundToDouble(X x, RoundingMode mode) {
    checkNotNull(x, "x");
    checkNotNull(mode, "mode");
    double roundArbitrarily = roundToDoubleArbitrarily(x);
    if (Double.isInfinite(roundArbitrarily)) {
      switch (mode) {
        case DOWN:
        case HALF_EVEN:
        case HALF_DOWN:
        case HALF_UP:
          return Double.MAX_VALUE * sign(x);
        case FLOOR:

    }

    public void formatRate(MessageBuilder builder, double rate) {
        // Handle invalid rates gracefully (including negative values)
        if (Double.isNaN(rate) || Double.isInfinite(rate) || rate < 0) {
            builder.append("? B/s");
            return;
        }

        ScaleUnit unit = ScaleUnit.getScaleUnit(Math.round(rate));
        double scaledRate = rate / unit.bytes();

*p256Element) int { var acc uint64 for i := range a { acc |= a[i] ^ b[i] } return uint64IsZero(acc) } // isInfinity returns 1 if p is the point at infinity and 0 otherwise. func (p *P256Point) isInfinity() int { return p256Equal(&p.z, &p256Zero) } // Bytes returns the uncompressed or infinity encoding of p, as specified in // SEC 1, Version 2.0, Section 2.3.3. Note that the encoding of the point at // infinity is shorter than all other encodings. func (p *P256Point) Bytes() []byte { // This function is outlined...

        return readShort() & 0xffff;
    }

    /**
     * Reads a Windows FILETIME value and converts it to a Date.
     * @return the Date object, or null if the time represents infinity
     * @throws IOException if an I/O error occurs
     */
    public Date readFiletime() throws IOException {
        Date date = null;

        final long last = readUnsignedInt();

    return Double.compare(a, b);
  }

  /**
   * Returns {@code true} if {@code value} represents a real number. This is equivalent to, but not
   * necessarily implemented as, {@code !(Double.isInfinite(value) || Double.isNaN(value))}.
   *
   * <p>Prefer {@link Double#isFinite(double)} instead.
   *
   * @since 10.0
   */
  @InlineMe(replacement = "Double.isFinite(value)")

     * Consequently:
     * 1. If the previous mean is finite and the new value is non-finite then the new mean is that
     *    value (whether it is NaN or infinity).
     * 2. If the new value is finite and the previous mean is non-finite then the mean is unchanged
     *    (whether it is NaN or infinity).
     * 3. If both the previous mean and the new value are non-finite and...
     * 3a. ...either or both is NaN (so mean != value) then the new mean is NaN.

  public void testIsPowerOfTwo() {
    for (double x : ALL_DOUBLE_CANDIDATES) {
      boolean expected =
          x > 0
              && !Double.isInfinite(x)
              && !Double.isNaN(x)
              && StrictMath.pow(2.0, DoubleMath.log2(x, FLOOR)) == x;
      assertEquals(expected, DoubleMath.isPowerOfTwo(x));
    }
  }