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mixer tests styling
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Alexey
parent
2b2e174d06
commit
a60d539a2c
@ -1,33 +1,35 @@
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const should = require('chai')
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/* global artifacts, web3, contract */
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require('chai')
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.use(require('bn-chai')(web3.utils.BN))
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.use(require('chai-as-promised'))
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.should()
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const fs = require('fs')
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const { toWei, toBN, fromWei, toHex, randomHex } = require('web3-utils')
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const { takeSnapshot, revertSnapshot, increaseTime } = require('../scripts/ganacheHelper');
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const { toBN, toHex, randomHex } = require('web3-utils')
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const { takeSnapshot, revertSnapshot } = require('../scripts/ganacheHelper')
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const Mixer = artifacts.require('./Mixer.sol')
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const { AMOUNT, MERKLE_TREE_HEIGHT, EMPTY_ELEMENT } = process.env
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const utils = require('../scripts/utils')
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const websnarkUtils = require('websnark/src/utils')
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const buildGroth16 = require('websnark/src/groth16');
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const buildGroth16 = require('websnark/src/groth16')
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const stringifyBigInts = require('websnark/tools/stringifybigint').stringifyBigInts
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const snarkjs = require('snarkjs');
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const bigInt = snarkjs.bigInt;
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const snarkjs = require('snarkjs')
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const bigInt = snarkjs.bigInt
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const MerkleTree = require('../lib/MerkleTree')
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function generateDeposit() {
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let deposit = {
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secret: utils.rbigint(31),
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nullifier: utils.rbigint(31),
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};
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const preimage = Buffer.concat([deposit.nullifier.leInt2Buff(32), deposit.secret.leInt2Buff(32)]);
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deposit.commitment = utils.pedersenHash(preimage);
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return deposit;
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}
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const preimage = Buffer.concat([deposit.nullifier.leInt2Buff(32), deposit.secret.leInt2Buff(32)])
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deposit.commitment = utils.pedersenHash(preimage)
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return deposit
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}
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// eslint-disable-next-line no-unused-vars
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function BNArrayToStringArray(array) {
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const arrayToPrint = []
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array.forEach(item => {
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@ -44,10 +46,9 @@ function getRandomReceiver() {
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return receiver
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}
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contract('Mixer', async accounts => {
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contract('Mixer', accounts => {
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let mixer
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const sender = accounts[0]
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const emptyAddress = '0x0000000000000000000000000000000000000000'
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const levels = MERKLE_TREE_HEIGHT || 16
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const zeroValue = EMPTY_ELEMENT || 1337
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const value = AMOUNT || '1000000000000000000'
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@ -71,18 +72,18 @@ contract('Mixer', async accounts => {
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mixer = await Mixer.deployed()
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snapshotId = await takeSnapshot()
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groth16 = await buildGroth16()
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circuit = require("../build/circuits/withdraw.json")
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proving_key = fs.readFileSync("build/circuits/withdraw_proving_key.bin").buffer
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circuit = require('../build/circuits/withdraw.json')
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proving_key = fs.readFileSync('build/circuits/withdraw_proving_key.bin').buffer
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})
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describe('#constructor', async () => {
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describe('#constructor', () => {
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it('should initialize', async () => {
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const transferValue = await mixer.transferValue()
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transferValue.should.be.eq.BN(toBN(value))
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})
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})
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describe('#deposit', async () => {
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describe('#deposit', () => {
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it('should emit event', async () => {
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const commitment = 42
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const { logs } = await mixer.deposit(commitment, { value, from: sender })
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@ -103,11 +104,11 @@ contract('Mixer', async accounts => {
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})
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})
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describe('snark proof verification on js side', async () => {
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describe('snark proof verification on js side', () => {
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it('should detect tampering', async () => {
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const deposit = generateDeposit()
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await tree.insert(deposit.commitment)
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const { root, path_elements, path_index } = await tree.path(0);
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const { root, path_elements, path_index } = await tree.path(0)
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const input = stringifyBigInts({
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root,
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@ -144,7 +145,7 @@ contract('Mixer', async accounts => {
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})
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})
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describe('#withdraw', async () => {
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describe('#withdraw', () => {
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it('should work', async () => {
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const deposit = generateDeposit()
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const user = accounts[4]
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@ -157,7 +158,7 @@ contract('Mixer', async accounts => {
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const balanceUserAfter = await web3.eth.getBalance(user)
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balanceUserAfter.should.be.eq.BN(toBN(balanceUserBefore).sub(toBN(value)))
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const {root, path_elements, path_index} = await tree.path(0);
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const { root, path_elements, path_index } = await tree.path(0)
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// Circuit input
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const input = stringifyBigInts({
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@ -200,7 +201,7 @@ contract('Mixer', async accounts => {
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await tree.insert(deposit.commitment)
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await mixer.deposit(toBN(deposit.commitment.toString()), { value, from: sender })
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const {root, path_elements, path_index} = await tree.path(0);
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const { root, path_elements, path_index } = await tree.path(0)
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const input = stringifyBigInts({
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root,
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@ -224,8 +225,8 @@ contract('Mixer', async accounts => {
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await tree.insert(deposit.commitment)
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await mixer.deposit(toBN(deposit.commitment.toString()), { value, from: sender })
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const {root, path_elements, path_index} = await tree.path(0);
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oneEtherFee = bigInt(1e18) // 1 ether
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const { root, path_elements, path_index } = await tree.path(0)
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const oneEtherFee = bigInt(1e18) // 1 ether
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const input = stringifyBigInts({
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root,
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nullifier: deposit.nullifier,
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@ -294,21 +295,21 @@ contract('Mixer', async accounts => {
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publicSignals[2] = '0x0000000000000000000000007a1f9131357404ef86d7c38dbffed2da70321337'
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let error = await mixer.withdraw(pi_a, pi_b, pi_c, publicSignals, { from: relayer }).should.be.rejected
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error.reason.should.be.equal('Invalid withdraw proof');
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error.reason.should.be.equal('Invalid withdraw proof')
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// fee
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publicSignals = originalPublicSignals.slice()
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publicSignals[3] = '0x000000000000000000000000000000000000000000000000015345785d8a0000'
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error = await mixer.withdraw(pi_a, pi_b, pi_c, publicSignals, { from: relayer }).should.be.rejected
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error.reason.should.be.equal('Invalid withdraw proof');
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error.reason.should.be.equal('Invalid withdraw proof')
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// nullifier
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publicSignals = originalPublicSignals.slice()
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publicSignals[1] = '0x00abdfc78211f8807b9c6504a6e537e71b8788b2f529a95f1399ce124a8642ad'
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error = await mixer.withdraw(pi_a, pi_b, pi_c, publicSignals, { from: relayer }).should.be.rejected
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error.reason.should.be.equal('Invalid withdraw proof');
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error.reason.should.be.equal('Invalid withdraw proof')
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// proof itself
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pi_a[0] = '0x261d81d8203437f29b38a88c4263476d858e6d9645cf21740461684412b31337'
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@ -321,6 +322,7 @@ contract('Mixer', async accounts => {
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afterEach(async () => {
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await revertSnapshot(snapshotId.result)
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// eslint-disable-next-line require-atomic-updates
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snapshotId = await takeSnapshot()
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tree = new MerkleTree(
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levels,
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