Files
p256k1/avx/mulint_test.go
2025-11-28 16:35:08 +00:00

30 lines
567 B
Go

package avx
import "testing"
func TestMulInt(t *testing.T) {
// Test 3 * X = X + X + X
var x, tripleX, addX FieldElement
x.N[0].Lo = 12345
tripleX.MulInt(&x, 3)
addX.Add(&x, &x)
addX.Add(&addX, &x)
if !tripleX.Equal(&addX) {
t.Errorf("3*X != X+X+X: MulInt=%+v, Add=%+v", tripleX, addX)
}
// Test 2 * Y = Y + Y
var y, doubleY, addY FieldElement
y.N[0].Lo = 0xFFFFFFFFFFFFFFFF
y.N[0].Hi = 0xFFFFFFFFFFFFFFFF
doubleY.MulInt(&y, 2)
addY.Add(&y, &y)
if !doubleY.Equal(&addY) {
t.Errorf("2*Y != Y+Y: MulInt=%+v, Add=%+v", doubleY, addY)
}
}