// Reset implements the protobuf marshalling interface.
func (q *Quantity) Unmarshal(data []byte) error {
	p := QuantityProto{}
	if err := p.Unmarshal(data); err != nil {
		return err
	}
	q.Format = p.Format
	b := big.NewInt(0)
	b.SetBytes(p.Bigint)
	q.Amount = inf.NewDecBig(b, inf.Scale(p.Scale))
	return nil
}

// infScale adapts a Scale value to an inf.Scale value.
func (s Scale) infScale() inf.Scale {
	return inf.Scale(-s) // inf.Scale is upside-down
}

// AsDec returns an inf.Dec representation of this value.
func (a int64Amount) AsDec() *inf.Dec {
	var base inf.Dec
	base.SetUnscaled(a.value)
	base.SetScale(inf.Scale(-a.scale))
	return &base
}

func dec(i int64, exponent int) *inf.Dec {
	// See the below test-- scale is the negative of an exponent.
	return inf.NewDec(i, inf.Scale(-exponent))
}

				q.Amount.SetScale(0)
				q.Amount.SetUnscaled(c.Int63())
				return
			}
			// Be sure to test cases like 1Mi
			q.Amount.SetScale(0)
			q.Amount.SetUnscaled(c.Int63n(1024) << uint(10*c.Intn(5)))
			return
		}
		if c.RandBool() {
			q.Format = DecimalSI
		} else {
			q.Format = DecimalExponent
		}
		if c.RandBool() {
			q.Amount.SetScale(inf.Scale(c.Intn(4)))
			q.Amount.SetUnscaled(c.Int63())
			return
		}
		// Be sure to test cases like 1M
		q.Amount.SetScale(inf.Scale(3 - c.Intn(15)))
		q.Amount.SetUnscaled(c.Int63n(1000))
	},
)

func TestJSON(t *testing.T) {
	for i := 0; i < 500; i++ {
		q := &Quantity{}
		fuzzer.Fuzz(q)
		b, err := json.Marshal(q)
		if err != nil {

func amount(i int64, exponent int) infDecAmount {
	// See the below test-- scale is the negative of an exponent.
	return infDecAmount{inf.NewDec(i, inf.Scale(-exponent))}
}

			// Be sure to test cases like 1Mi
			dec := &inf.Dec{}
			q.d = infDecAmount{Dec: dec}
			dec.SetScale(0)
			dec.SetUnscaled(c.Int63n(1024) << uint(10*c.Intn(5)))
			return
		}
		if c.RandBool() {
			q.Format = DecimalSI
		} else {
			q.Format = DecimalExponent
		}
		if c.RandBool() {
			dec := &inf.Dec{}
			q.d = infDecAmount{Dec: dec}
			dec.SetScale(inf.Scale(c.Intn(4)))
			dec.SetUnscaled(c.Int63())
			return
		}
		// Be sure to test cases like 1M
		dec := &inf.Dec{}
		q.d = infDecAmount{Dec: dec}
		dec.SetScale(inf.Scale(3 - c.Intn(15)))
		dec.SetUnscaled(c.Int63n(1000))
	},
)

func TestJSON(t *testing.T) {
	for i := 0; i < 500; i++ {
		q := &Quantity{}
		fuzzer.Fuzz(q)

// CmpInt64 returns 0 if the quantity is equal to y, -1 if the quantity is less than y, or 1 if the
// quantity is greater than y.
func (q *Quantity) CmpInt64(y int64) int {
	if q.d.Dec != nil {
		return q.d.Dec.Cmp(inf.NewDec(y, inf.Scale(0)))
	}
	return q.i.Cmp(int64Amount{value: y})
}