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package arith
import (
"crypto/rand"
"io"
"slices"
"testing"
"github.com/cloudflare/circl/internal/sha3"
"github.com/cloudflare/circl/internal/test"
)
func testVec[V Vec[V, E], E EltTest, F Fp[E]](t *testing.T) {
t.Run("marshal", marshalVec[V, E, F])
t.Run("bitRepresentation", bitRepresentation[V, E, F])
t.Run("random", random[V, E, F])
}
func marshalVec[V Vec[V, E], E EltTest, F Fp[E]](t *testing.T) {
const N = 4
x := NewVec[V](N)
y := NewVec[V](N)
for i := 0; i < testTimes; i++ {
mustRead(t, x)
s, err := x.MarshalBinary()
test.CheckNoErr(t, err, "MarshalBinary failed")
test.CheckOk(uint(len(s)) == x.Size(), "wrong byte length", t)
err = y.UnmarshalBinary(s)
test.CheckNoErr(t, err, "UnmarshalBinary failed")
if !slices.Equal(x, y) {
test.ReportError(t, x, y)
}
// check for invalid size
err = y.UnmarshalBinary(s[1:])
test.CheckIsErr(t, err, "UnmarshalBinary should failed")
}
}
func bitRepresentation[V Vec[V, E], E Elt, F Fp[E]](t *testing.T) {
N := uint64(0x0F)
eightBits := NewVec[V](8)
err := eightBits.SplitBits(N)
test.CheckNoErr(t, err, "failed to split number in bits")
for i := range eightBits {
if i < 4 {
test.CheckOk(F(&eightBits[i]).IsOne(), "vector element should be one", t)
} else {
test.CheckOk(F(&eightBits[i]).IsZero(), "vector element should be zero", t)
}
}
num := eightBits.JoinBits()
test.CheckNoErr(t, err, "JoinBits failed")
got, err := F(&num).GetUint64()
test.CheckNoErr(t, err, "failed to recover uint64")
want := N
if got != want {
test.ReportError(t, got, want, eightBits, num)
}
fourBits := NewVec[V](4)
err = fourBits.SplitBits(0xFF)
test.CheckIsErr(t, err, "SplitBits should return an error")
}
func random[V Vec[V, E], E EltTest, F Fp[E]](t *testing.T) {
r := sha3.NewShake128()
v := NewVec[V](4)
err := v.Random(io.LimitReader(&r, 0))
test.CheckIsErr(t, err, "generating random vector should failed")
r.Reset()
got := NewVec[V](4)
err = got.Random(&r)
test.CheckNoErr(t, err, "Random failed")
r.Reset()
want := NewVec[V](4)
err = want.RandomSHA3(&r)
test.CheckNoErr(t, err, "RandomSHA3 failed")
if !slices.Equal(got, want) {
test.ReportError(t, got, want)
}
}
func benchmarkVec[V Vec[V, E], E Elt, F Fp[E]](b *testing.B) {
const N = 1024
k := F(new(E))
x := NewVec[V](N)
z := NewVec[V](N)
mustRead(b, k)
mustRead(b, x)
mustRead(b, z)
const Bits = uint64(0x0F)
eightBits := NewVec[V](8)
_ = eightBits.SplitBits(Bits)
buf, _ := x.MarshalBinary()
b.Run("MarshalBinary", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_, _ = z.MarshalBinary()
}
})
b.Run("UnmarshalBinary", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = z.UnmarshalBinary(buf)
}
})
b.Run("Random", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = z.Random(rand.Reader)
}
})
b.Run("RandomSHA3", func(b *testing.B) {
r := sha3.NewShake128()
for i := 0; i < b.N; i++ {
_ = z.RandomSHA3(&r)
}
})
b.Run("AddAssign", func(b *testing.B) {
for i := 0; i < b.N; i++ {
z.AddAssign(x)
}
})
b.Run("SubAssign", func(b *testing.B) {
for i := 0; i < b.N; i++ {
z.SubAssign(x)
}
})
b.Run("ScalarMul", func(b *testing.B) {
for i := 0; i < b.N; i++ {
z.ScalarMul(k)
}
})
b.Run("DotProduct", func(b *testing.B) {
for i := 0; i < b.N; i++ {
z.DotProduct(x)
}
})
b.Run("SplitBits", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = eightBits.SplitBits(Bits)
}
})
b.Run("JoinBits", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = eightBits.JoinBits()
}
})
}
|
