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package prover
import (
"encoding/json"
"fmt"
"io/ioutil"
"testing"
"time"
"github.com/iden3/go-circom-prover-verifier/parsers"
"github.com/iden3/go-circom-prover-verifier/verifier"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestCircuitsGenerateProof(t *testing.T) {
testCircuitGenerateProof(t, "circuit1k") // 1000 constraints
testCircuitGenerateProof(t, "circuit5k") // 5000 constraints
//testCircuitGenerateProof(t, "circuit10k") // 10000 constraints
//testCircuitGenerateProof(t, "circuit20k") // 20000 constraints
}
func testCircuitGenerateProof(t *testing.T, circuit string) {
provingKeyJson, err := ioutil.ReadFile("../testdata/" + circuit + "/proving_key.json")
require.Nil(t, err)
pk, err := parsers.ParsePk(provingKeyJson)
require.Nil(t, err)
witnessJson, err := ioutil.ReadFile("../testdata/" + circuit + "/witness.json")
require.Nil(t, err)
w, err := parsers.ParseWitness(witnessJson)
require.Nil(t, err)
beforeT := time.Now()
proof, pubSignals, err := GenerateProof(pk, w)
assert.Nil(t, err)
fmt.Println("proof generation time elapsed:", time.Since(beforeT))
proofStr, err := parsers.ProofToJson(proof)
assert.Nil(t, err)
err = ioutil.WriteFile("../testdata/"+circuit+"/proof.json", proofStr, 0644)
assert.Nil(t, err)
publicStr, err := json.Marshal(parsers.ArrayBigIntToString(pubSignals))
assert.Nil(t, err)
err = ioutil.WriteFile("../testdata/"+circuit+"/public.json", publicStr, 0644)
assert.Nil(t, err)
// verify the proof
vkJson, err := ioutil.ReadFile("../testdata/" + circuit + "/verification_key.json")
require.Nil(t, err)
vk, err := parsers.ParseVk(vkJson)
require.Nil(t, err)
v := verifier.Verify(vk, proof, pubSignals)
assert.True(t, v)
// to verify the proof with snarkjs:
// snarkjs verify --vk testdata/circuitX/verification_key.json -p testdata/circuitX/proof.json --pub testdata/circuitX/public.json
}
func BenchmarkGenerateProof(b *testing.B) {
// benchmark with a circuit of 10000 constraints
provingKeyJson, err := ioutil.ReadFile("../testdata/circuit5k/proving_key.json")
require.Nil(b, err)
pk, err := parsers.ParsePk(provingKeyJson)
require.Nil(b, err)
witnessJson, err := ioutil.ReadFile("../testdata/circuit5k/witness.json")
require.Nil(b, err)
w, err := parsers.ParseWitness(witnessJson)
require.Nil(b, err)
for i := 0; i < b.N; i++ {
GenerateProof(pk, w)
}
}