mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 08:20:23 +00:00
110 lines
4.3 KiB
Go
110 lines
4.3 KiB
Go
package inf_test
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
|
|
"gopkg.in/inf.v0"
|
|
)
|
|
|
|
var decRounderInputs = [...]struct {
|
|
quo *inf.Dec
|
|
rA, rB *big.Int
|
|
}{
|
|
// examples from go language spec
|
|
{inf.NewDec(1, 0), big.NewInt(2), big.NewInt(3)}, // 5 / 3
|
|
{inf.NewDec(-1, 0), big.NewInt(-2), big.NewInt(3)}, // -5 / 3
|
|
{inf.NewDec(-1, 0), big.NewInt(2), big.NewInt(-3)}, // 5 / -3
|
|
{inf.NewDec(1, 0), big.NewInt(-2), big.NewInt(-3)}, // -5 / -3
|
|
// examples from godoc
|
|
{inf.NewDec(-1, 1), big.NewInt(-8), big.NewInt(10)},
|
|
{inf.NewDec(-1, 1), big.NewInt(-5), big.NewInt(10)},
|
|
{inf.NewDec(-1, 1), big.NewInt(-2), big.NewInt(10)},
|
|
{inf.NewDec(0, 1), big.NewInt(-8), big.NewInt(10)},
|
|
{inf.NewDec(0, 1), big.NewInt(-5), big.NewInt(10)},
|
|
{inf.NewDec(0, 1), big.NewInt(-2), big.NewInt(10)},
|
|
{inf.NewDec(0, 1), big.NewInt(0), big.NewInt(1)},
|
|
{inf.NewDec(0, 1), big.NewInt(2), big.NewInt(10)},
|
|
{inf.NewDec(0, 1), big.NewInt(5), big.NewInt(10)},
|
|
{inf.NewDec(0, 1), big.NewInt(8), big.NewInt(10)},
|
|
{inf.NewDec(1, 1), big.NewInt(2), big.NewInt(10)},
|
|
{inf.NewDec(1, 1), big.NewInt(5), big.NewInt(10)},
|
|
{inf.NewDec(1, 1), big.NewInt(8), big.NewInt(10)},
|
|
}
|
|
|
|
var decRounderResults = [...]struct {
|
|
rounder inf.Rounder
|
|
results [len(decRounderInputs)]*inf.Dec
|
|
}{
|
|
{inf.RoundExact, [...]*inf.Dec{nil, nil, nil, nil,
|
|
nil, nil, nil, nil, nil, nil,
|
|
inf.NewDec(0, 1), nil, nil, nil, nil, nil, nil}},
|
|
{inf.RoundDown, [...]*inf.Dec{
|
|
inf.NewDec(1, 0), inf.NewDec(-1, 0), inf.NewDec(-1, 0), inf.NewDec(1, 0),
|
|
inf.NewDec(-1, 1), inf.NewDec(-1, 1), inf.NewDec(-1, 1),
|
|
inf.NewDec(0, 1), inf.NewDec(0, 1), inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1), inf.NewDec(0, 1), inf.NewDec(0, 1),
|
|
inf.NewDec(1, 1), inf.NewDec(1, 1), inf.NewDec(1, 1)}},
|
|
{inf.RoundUp, [...]*inf.Dec{
|
|
inf.NewDec(2, 0), inf.NewDec(-2, 0), inf.NewDec(-2, 0), inf.NewDec(2, 0),
|
|
inf.NewDec(-2, 1), inf.NewDec(-2, 1), inf.NewDec(-2, 1),
|
|
inf.NewDec(-1, 1), inf.NewDec(-1, 1), inf.NewDec(-1, 1),
|
|
inf.NewDec(0, 1),
|
|
inf.NewDec(1, 1), inf.NewDec(1, 1), inf.NewDec(1, 1),
|
|
inf.NewDec(2, 1), inf.NewDec(2, 1), inf.NewDec(2, 1)}},
|
|
{inf.RoundHalfDown, [...]*inf.Dec{
|
|
inf.NewDec(2, 0), inf.NewDec(-2, 0), inf.NewDec(-2, 0), inf.NewDec(2, 0),
|
|
inf.NewDec(-2, 1), inf.NewDec(-1, 1), inf.NewDec(-1, 1),
|
|
inf.NewDec(-1, 1), inf.NewDec(0, 1), inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1), inf.NewDec(0, 1), inf.NewDec(1, 1),
|
|
inf.NewDec(1, 1), inf.NewDec(1, 1), inf.NewDec(2, 1)}},
|
|
{inf.RoundHalfUp, [...]*inf.Dec{
|
|
inf.NewDec(2, 0), inf.NewDec(-2, 0), inf.NewDec(-2, 0), inf.NewDec(2, 0),
|
|
inf.NewDec(-2, 1), inf.NewDec(-2, 1), inf.NewDec(-1, 1),
|
|
inf.NewDec(-1, 1), inf.NewDec(-1, 1), inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1), inf.NewDec(1, 1), inf.NewDec(1, 1),
|
|
inf.NewDec(1, 1), inf.NewDec(2, 1), inf.NewDec(2, 1)}},
|
|
{inf.RoundHalfEven, [...]*inf.Dec{
|
|
inf.NewDec(2, 0), inf.NewDec(-2, 0), inf.NewDec(-2, 0), inf.NewDec(2, 0),
|
|
inf.NewDec(-2, 1), inf.NewDec(-2, 1), inf.NewDec(-1, 1),
|
|
inf.NewDec(-1, 1), inf.NewDec(0, 1), inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1), inf.NewDec(0, 1), inf.NewDec(1, 1),
|
|
inf.NewDec(1, 1), inf.NewDec(2, 1), inf.NewDec(2, 1)}},
|
|
{inf.RoundFloor, [...]*inf.Dec{
|
|
inf.NewDec(1, 0), inf.NewDec(-2, 0), inf.NewDec(-2, 0), inf.NewDec(1, 0),
|
|
inf.NewDec(-2, 1), inf.NewDec(-2, 1), inf.NewDec(-2, 1),
|
|
inf.NewDec(-1, 1), inf.NewDec(-1, 1), inf.NewDec(-1, 1),
|
|
inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1), inf.NewDec(0, 1), inf.NewDec(0, 1),
|
|
inf.NewDec(1, 1), inf.NewDec(1, 1), inf.NewDec(1, 1)}},
|
|
{inf.RoundCeil, [...]*inf.Dec{
|
|
inf.NewDec(2, 0), inf.NewDec(-1, 0), inf.NewDec(-1, 0), inf.NewDec(2, 0),
|
|
inf.NewDec(-1, 1), inf.NewDec(-1, 1), inf.NewDec(-1, 1),
|
|
inf.NewDec(0, 1), inf.NewDec(0, 1), inf.NewDec(0, 1),
|
|
inf.NewDec(0, 1),
|
|
inf.NewDec(1, 1), inf.NewDec(1, 1), inf.NewDec(1, 1),
|
|
inf.NewDec(2, 1), inf.NewDec(2, 1), inf.NewDec(2, 1)}},
|
|
}
|
|
|
|
func TestDecRounders(t *testing.T) {
|
|
for i, a := range decRounderResults {
|
|
for j, input := range decRounderInputs {
|
|
q := new(inf.Dec).Set(input.quo)
|
|
rA, rB := new(big.Int).Set(input.rA), new(big.Int).Set(input.rB)
|
|
res := a.rounder.Round(new(inf.Dec), q, rA, rB)
|
|
if a.results[j] == nil && res == nil {
|
|
continue
|
|
}
|
|
if (a.results[j] == nil && res != nil) ||
|
|
(a.results[j] != nil && res == nil) ||
|
|
a.results[j].Cmp(res) != 0 {
|
|
t.Errorf("#%d,%d Rounder got %v; expected %v", i, j, res, a.results[j])
|
|
}
|
|
}
|
|
}
|
|
}
|