frostfs-node/pkg/innerring/processors/settlement/basic/distribute_test.go
Alex Vanin 3775d61ccb [] settlement/basic: Use big.Int constructor for unification
Check if `new(big.Int)` will be efficient later and replace
all `big.NewInt()` in code or leave it as it is.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-02-03 15:17:58 +03:00

54 lines
988 B
Go

package basic
import (
"math/big"
"testing"
"github.com/stretchr/testify/require"
)
type normalizedValueCase struct {
name string
n, total, limit uint64
expected uint64
}
func TestNormalizedValues(t *testing.T) {
testCases := []normalizedValueCase{
{
name: "zero limit",
n: 50,
total: 100,
limit: 0,
expected: 0,
},
{
name: "scale down",
n: 50,
total: 100,
limit: 10,
expected: 5,
},
{
name: "scale up",
n: 50,
total: 100,
limit: 1000,
expected: 500,
},
}
for _, testCase := range testCases {
testNormalizedValues(t, testCase)
}
}
func testNormalizedValues(t *testing.T, c normalizedValueCase) {
n := big.NewInt(0).SetUint64(c.n)
total := big.NewInt(0).SetUint64(c.total)
limit := big.NewInt(0).SetUint64(c.limit)
exp := big.NewInt(0).SetUint64(c.expected)
got := normalizedValue(n, total, limit)
require.Zero(t, exp.Cmp(got), c.name)
}