mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-23 06:40:23 +00:00
41 lines
1.4 KiB
Go
41 lines
1.4 KiB
Go
package inf
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
)
|
|
|
|
var decQuoRemZZZ = []struct {
|
|
z, x, y *Dec
|
|
r *big.Rat
|
|
srA, srB int
|
|
}{
|
|
// basic examples
|
|
{NewDec(1, 0), NewDec(2, 0), NewDec(2, 0), big.NewRat(0, 1), 0, 1},
|
|
{NewDec(15, 1), NewDec(3, 0), NewDec(2, 0), big.NewRat(0, 1), 0, 1},
|
|
{NewDec(1, 1), NewDec(1, 0), NewDec(10, 0), big.NewRat(0, 1), 0, 1},
|
|
{NewDec(0, 0), NewDec(2, 0), NewDec(3, 0), big.NewRat(2, 3), 1, 1},
|
|
{NewDec(0, 0), NewDec(2, 0), NewDec(6, 0), big.NewRat(1, 3), 1, 1},
|
|
{NewDec(1, 1), NewDec(2, 0), NewDec(12, 0), big.NewRat(2, 3), 1, 1},
|
|
|
|
// examples from the Go Language Specification
|
|
{NewDec(1, 0), NewDec(5, 0), NewDec(3, 0), big.NewRat(2, 3), 1, 1},
|
|
{NewDec(-1, 0), NewDec(-5, 0), NewDec(3, 0), big.NewRat(-2, 3), -1, 1},
|
|
{NewDec(-1, 0), NewDec(5, 0), NewDec(-3, 0), big.NewRat(-2, 3), 1, -1},
|
|
{NewDec(1, 0), NewDec(-5, 0), NewDec(-3, 0), big.NewRat(2, 3), -1, -1},
|
|
}
|
|
|
|
func TestDecQuoRem(t *testing.T) {
|
|
for i, a := range decQuoRemZZZ {
|
|
z, rA, rB := new(Dec), new(big.Int), new(big.Int)
|
|
s := scaleQuoExact{}.Scale(a.x, a.y)
|
|
z.quoRem(a.x, a.y, s, true, rA, rB)
|
|
if a.z.Cmp(z) != 0 || a.r.Cmp(new(big.Rat).SetFrac(rA, rB)) != 0 {
|
|
t.Errorf("#%d QuoRemZZZ got %v, %v, %v; expected %v, %v", i, z, rA, rB, a.z, a.r)
|
|
}
|
|
if a.srA != rA.Sign() || a.srB != rB.Sign() {
|
|
t.Errorf("#%d QuoRemZZZ wrong signs, got %v, %v; expected %v, %v", i, rA.Sign(), rB.Sign(), a.srA, a.srB)
|
|
}
|
|
}
|
|
}
|