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package ff
import (
"math/big"
"testing"
)
func Test_add_random(t *testing.T) {
for i := 0; i < 100; i++ {
x := randomElement(2 * i)
y := randomElement(2*i + 1)
y[3] = y[3] & 0x7fffffffffffffff // clear last bit so garunteed it will fit in 256 bits
got := add(x, y)
want := BigIntToElement(new(big.Int).Add(ElementToBigInt(x), ElementToBigInt(y)))
if got != want {
t.Errorf("/%d add(%v,%v) = %v, want %v", i, x, y, got, want)
t.FailNow()
}
}
}
func Benchmark_add(b *testing.B) {
x := randomElement(1)
y := randomElement(2)
y[3] = y[3] & 0x7fffffffffffffff
b.ResetTimer()
for i := 0; i < b.N; i++ {
add(x, y)
}
}
func Benchmark_add_BI(b *testing.B) {
x := randomElement(1)
y := randomElement(2)
y[3] = y[3] & 0x7fffffffffffffff
A, B := ElementToBigInt(x), ElementToBigInt(y)
C := new(big.Int)
b.ResetTimer()
for i := 0; i < b.N; i++ {
C.Add(A, B)
}
}
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