mirror of
https://github.com/tornadocash/tornado-core.git
synced 2024-11-21 17:27:06 +01:00
506 lines
22 KiB
JavaScript
506 lines
22 KiB
JavaScript
/* global artifacts, web3, contract */
|
|
require('chai').use(require('bn-chai')(web3.utils.BN)).use(require('chai-as-promised')).should()
|
|
const fs = require('fs')
|
|
|
|
const { toBN } = require('web3-utils')
|
|
const { takeSnapshot, revertSnapshot } = require('../scripts/ganacheHelper')
|
|
|
|
const Tornado = artifacts.require('./ERC20Tornado.sol')
|
|
const BadRecipient = artifacts.require('./BadRecipient.sol')
|
|
const Token = artifacts.require('./ERC20Mock.sol')
|
|
const USDTToken = artifacts.require('./IUSDT.sol')
|
|
const { ETH_AMOUNT, TOKEN_AMOUNT, MERKLE_TREE_HEIGHT, ERC20_TOKEN } = process.env
|
|
|
|
const websnarkUtils = require('websnark/src/utils')
|
|
const buildGroth16 = require('websnark/src/groth16')
|
|
const stringifyBigInts = require('websnark/tools/stringifybigint').stringifyBigInts
|
|
const snarkjs = require('snarkjs')
|
|
const bigInt = snarkjs.bigInt
|
|
const crypto = require('crypto')
|
|
const circomlib = require('circomlib')
|
|
const MerkleTree = require('fixed-merkle-tree')
|
|
|
|
const rbigint = (nbytes) => snarkjs.bigInt.leBuff2int(crypto.randomBytes(nbytes))
|
|
const pedersenHash = (data) => circomlib.babyJub.unpackPoint(circomlib.pedersenHash.hash(data))[0]
|
|
const toFixedHex = (number, length = 32) =>
|
|
'0x' +
|
|
bigInt(number)
|
|
.toString(16)
|
|
.padStart(length * 2, '0')
|
|
const getRandomRecipient = () => rbigint(20)
|
|
|
|
function generateDeposit() {
|
|
let deposit = {
|
|
secret: rbigint(31),
|
|
nullifier: rbigint(31),
|
|
}
|
|
const preimage = Buffer.concat([deposit.nullifier.leInt2Buff(31), deposit.secret.leInt2Buff(31)])
|
|
deposit.commitment = pedersenHash(preimage)
|
|
return deposit
|
|
}
|
|
|
|
contract('ERC20Tornado', (accounts) => {
|
|
let tornado
|
|
let token
|
|
let usdtToken
|
|
let badRecipient
|
|
const sender = accounts[0]
|
|
const operator = accounts[0]
|
|
const levels = MERKLE_TREE_HEIGHT || 16
|
|
let tokenDenomination = TOKEN_AMOUNT || '1000000000000000000' // 1 ether
|
|
let snapshotId
|
|
let tree
|
|
const fee = bigInt(ETH_AMOUNT).shr(1) || bigInt(1e17)
|
|
const refund = ETH_AMOUNT || '1000000000000000000' // 1 ether
|
|
let recipient = getRandomRecipient()
|
|
const relayer = accounts[1]
|
|
let groth16
|
|
let circuit
|
|
let proving_key
|
|
|
|
before(async () => {
|
|
tree = new MerkleTree(levels)
|
|
tornado = await Tornado.deployed()
|
|
if (ERC20_TOKEN) {
|
|
token = await Token.at(ERC20_TOKEN)
|
|
usdtToken = await USDTToken.at(ERC20_TOKEN)
|
|
} else {
|
|
token = await Token.deployed()
|
|
await token.mint(sender, tokenDenomination)
|
|
}
|
|
badRecipient = await BadRecipient.new()
|
|
snapshotId = await takeSnapshot()
|
|
groth16 = await buildGroth16()
|
|
circuit = require('../build/circuits/withdraw.json')
|
|
proving_key = fs.readFileSync('build/circuits/withdraw_proving_key.bin').buffer
|
|
})
|
|
|
|
describe('#constructor', () => {
|
|
it('should initialize', async () => {
|
|
const tokenFromContract = await tornado.token()
|
|
tokenFromContract.should.be.equal(token.address)
|
|
})
|
|
})
|
|
|
|
describe('#deposit', () => {
|
|
it('should work', async () => {
|
|
const commitment = toFixedHex(43)
|
|
await token.approve(tornado.address, tokenDenomination)
|
|
|
|
let { logs } = await tornado.deposit(commitment, { from: sender })
|
|
|
|
logs[0].event.should.be.equal('Deposit')
|
|
logs[0].args.commitment.should.be.equal(commitment)
|
|
logs[0].args.leafIndex.should.be.eq.BN(0)
|
|
})
|
|
|
|
it('should not allow to send ether on deposit', async () => {
|
|
const commitment = toFixedHex(43)
|
|
await token.approve(tornado.address, tokenDenomination)
|
|
|
|
let error = await tornado.deposit(commitment, { from: sender, value: 1e6 }).should.be.rejected
|
|
error.reason.should.be.equal('ETH value is supposed to be 0 for ERC20 instance')
|
|
})
|
|
})
|
|
|
|
describe('#withdraw', () => {
|
|
it('should work', async () => {
|
|
const deposit = generateDeposit()
|
|
const user = accounts[4]
|
|
tree.insert(deposit.commitment)
|
|
await token.mint(user, tokenDenomination)
|
|
|
|
const balanceUserBefore = await token.balanceOf(user)
|
|
await token.approve(tornado.address, tokenDenomination, { from: user })
|
|
// Uncomment to measure gas usage
|
|
// let gas = await tornado.deposit.estimateGas(toBN(deposit.commitment.toString()), { from: user, gasPrice: '0' })
|
|
// console.log('deposit gas:', gas)
|
|
await tornado.deposit(toFixedHex(deposit.commitment), { from: user, gasPrice: '0' })
|
|
|
|
const balanceUserAfter = await token.balanceOf(user)
|
|
balanceUserAfter.should.be.eq.BN(toBN(balanceUserBefore).sub(toBN(tokenDenomination)))
|
|
|
|
const { pathElements, pathIndices } = tree.path(0)
|
|
// Circuit input
|
|
const input = stringifyBigInts({
|
|
// public
|
|
root: tree.root(),
|
|
nullifierHash: pedersenHash(deposit.nullifier.leInt2Buff(31)),
|
|
relayer,
|
|
recipient,
|
|
fee,
|
|
refund,
|
|
|
|
// private
|
|
nullifier: deposit.nullifier,
|
|
secret: deposit.secret,
|
|
pathElements: pathElements,
|
|
pathIndices: pathIndices,
|
|
})
|
|
|
|
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
|
|
const { proof } = websnarkUtils.toSolidityInput(proofData)
|
|
|
|
const balanceTornadoBefore = await token.balanceOf(tornado.address)
|
|
const balanceRelayerBefore = await token.balanceOf(relayer)
|
|
const balanceReceiverBefore = await token.balanceOf(toFixedHex(recipient, 20))
|
|
|
|
const ethBalanceOperatorBefore = await web3.eth.getBalance(operator)
|
|
const ethBalanceReceiverBefore = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
const ethBalanceRelayerBefore = await web3.eth.getBalance(relayer)
|
|
let isSpent = await tornado.isSpent(toFixedHex(input.nullifierHash))
|
|
isSpent.should.be.equal(false)
|
|
// Uncomment to measure gas usage
|
|
// gas = await tornado.withdraw.estimateGas(proof, publicSignals, { from: relayer, gasPrice: '0' })
|
|
// console.log('withdraw gas:', gas)
|
|
const args = [
|
|
toFixedHex(input.root),
|
|
toFixedHex(input.nullifierHash),
|
|
toFixedHex(input.recipient, 20),
|
|
toFixedHex(input.relayer, 20),
|
|
toFixedHex(input.fee),
|
|
toFixedHex(input.refund),
|
|
]
|
|
const { logs } = await tornado.withdraw(proof, ...args, { value: refund, from: relayer, gasPrice: '0' })
|
|
|
|
const balanceTornadoAfter = await token.balanceOf(tornado.address)
|
|
const balanceRelayerAfter = await token.balanceOf(relayer)
|
|
const ethBalanceOperatorAfter = await web3.eth.getBalance(operator)
|
|
const balanceReceiverAfter = await token.balanceOf(toFixedHex(recipient, 20))
|
|
const ethBalanceReceiverAfter = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
const ethBalanceRelayerAfter = await web3.eth.getBalance(relayer)
|
|
const feeBN = toBN(fee.toString())
|
|
balanceTornadoAfter.should.be.eq.BN(toBN(balanceTornadoBefore).sub(toBN(tokenDenomination)))
|
|
balanceRelayerAfter.should.be.eq.BN(toBN(balanceRelayerBefore).add(feeBN))
|
|
balanceReceiverAfter.should.be.eq.BN(
|
|
toBN(balanceReceiverBefore).add(toBN(tokenDenomination).sub(feeBN)),
|
|
)
|
|
|
|
ethBalanceOperatorAfter.should.be.eq.BN(toBN(ethBalanceOperatorBefore))
|
|
ethBalanceReceiverAfter.should.be.eq.BN(toBN(ethBalanceReceiverBefore).add(toBN(refund)))
|
|
ethBalanceRelayerAfter.should.be.eq.BN(toBN(ethBalanceRelayerBefore).sub(toBN(refund)))
|
|
|
|
logs[0].event.should.be.equal('Withdrawal')
|
|
logs[0].args.nullifierHash.should.be.equal(toFixedHex(input.nullifierHash))
|
|
logs[0].args.relayer.should.be.eq.BN(relayer)
|
|
logs[0].args.fee.should.be.eq.BN(feeBN)
|
|
isSpent = await tornado.isSpent(toFixedHex(input.nullifierHash))
|
|
isSpent.should.be.equal(true)
|
|
})
|
|
|
|
it('should return refund to the relayer is case of fail', async () => {
|
|
const deposit = generateDeposit()
|
|
const user = accounts[4]
|
|
recipient = bigInt(badRecipient.address)
|
|
tree.insert(deposit.commitment)
|
|
await token.mint(user, tokenDenomination)
|
|
|
|
const balanceUserBefore = await token.balanceOf(user)
|
|
await token.approve(tornado.address, tokenDenomination, { from: user })
|
|
await tornado.deposit(toFixedHex(deposit.commitment), { from: user, gasPrice: '0' })
|
|
|
|
const balanceUserAfter = await token.balanceOf(user)
|
|
balanceUserAfter.should.be.eq.BN(toBN(balanceUserBefore).sub(toBN(tokenDenomination)))
|
|
|
|
const { pathElements, pathIndices } = tree.path(0)
|
|
// Circuit input
|
|
const input = stringifyBigInts({
|
|
// public
|
|
root: tree.root(),
|
|
nullifierHash: pedersenHash(deposit.nullifier.leInt2Buff(31)),
|
|
relayer,
|
|
recipient,
|
|
fee,
|
|
refund,
|
|
|
|
// private
|
|
nullifier: deposit.nullifier,
|
|
secret: deposit.secret,
|
|
pathElements: pathElements,
|
|
pathIndices: pathIndices,
|
|
})
|
|
|
|
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
|
|
const { proof } = websnarkUtils.toSolidityInput(proofData)
|
|
|
|
const balanceTornadoBefore = await token.balanceOf(tornado.address)
|
|
const balanceRelayerBefore = await token.balanceOf(relayer)
|
|
const balanceReceiverBefore = await token.balanceOf(toFixedHex(recipient, 20))
|
|
|
|
const ethBalanceOperatorBefore = await web3.eth.getBalance(operator)
|
|
const ethBalanceReceiverBefore = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
const ethBalanceRelayerBefore = await web3.eth.getBalance(relayer)
|
|
let isSpent = await tornado.isSpent(toFixedHex(input.nullifierHash))
|
|
isSpent.should.be.equal(false)
|
|
|
|
const args = [
|
|
toFixedHex(input.root),
|
|
toFixedHex(input.nullifierHash),
|
|
toFixedHex(input.recipient, 20),
|
|
toFixedHex(input.relayer, 20),
|
|
toFixedHex(input.fee),
|
|
toFixedHex(input.refund),
|
|
]
|
|
const { logs } = await tornado.withdraw(proof, ...args, { value: refund, from: relayer, gasPrice: '0' })
|
|
|
|
const balanceTornadoAfter = await token.balanceOf(tornado.address)
|
|
const balanceRelayerAfter = await token.balanceOf(relayer)
|
|
const ethBalanceOperatorAfter = await web3.eth.getBalance(operator)
|
|
const balanceReceiverAfter = await token.balanceOf(toFixedHex(recipient, 20))
|
|
const ethBalanceReceiverAfter = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
const ethBalanceRelayerAfter = await web3.eth.getBalance(relayer)
|
|
const feeBN = toBN(fee.toString())
|
|
balanceTornadoAfter.should.be.eq.BN(toBN(balanceTornadoBefore).sub(toBN(tokenDenomination)))
|
|
balanceRelayerAfter.should.be.eq.BN(toBN(balanceRelayerBefore).add(feeBN))
|
|
balanceReceiverAfter.should.be.eq.BN(
|
|
toBN(balanceReceiverBefore).add(toBN(tokenDenomination).sub(feeBN)),
|
|
)
|
|
|
|
ethBalanceOperatorAfter.should.be.eq.BN(toBN(ethBalanceOperatorBefore))
|
|
ethBalanceReceiverAfter.should.be.eq.BN(toBN(ethBalanceReceiverBefore))
|
|
ethBalanceRelayerAfter.should.be.eq.BN(toBN(ethBalanceRelayerBefore))
|
|
|
|
logs[0].event.should.be.equal('Withdrawal')
|
|
logs[0].args.nullifierHash.should.be.equal(toFixedHex(input.nullifierHash))
|
|
logs[0].args.relayer.should.be.eq.BN(relayer)
|
|
logs[0].args.fee.should.be.eq.BN(feeBN)
|
|
isSpent = await tornado.isSpent(toFixedHex(input.nullifierHash))
|
|
isSpent.should.be.equal(true)
|
|
})
|
|
|
|
it('should reject with wrong refund value', async () => {
|
|
const deposit = generateDeposit()
|
|
const user = accounts[4]
|
|
tree.insert(deposit.commitment)
|
|
await token.mint(user, tokenDenomination)
|
|
await token.approve(tornado.address, tokenDenomination, { from: user })
|
|
await tornado.deposit(toFixedHex(deposit.commitment), { from: user, gasPrice: '0' })
|
|
|
|
const { pathElements, pathIndices } = tree.path(0)
|
|
// Circuit input
|
|
const input = stringifyBigInts({
|
|
// public
|
|
root: tree.root(),
|
|
nullifierHash: pedersenHash(deposit.nullifier.leInt2Buff(31)),
|
|
relayer,
|
|
recipient,
|
|
fee,
|
|
refund,
|
|
|
|
// private
|
|
nullifier: deposit.nullifier,
|
|
secret: deposit.secret,
|
|
pathElements: pathElements,
|
|
pathIndices: pathIndices,
|
|
})
|
|
|
|
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
|
|
const { proof } = websnarkUtils.toSolidityInput(proofData)
|
|
|
|
const args = [
|
|
toFixedHex(input.root),
|
|
toFixedHex(input.nullifierHash),
|
|
toFixedHex(input.recipient, 20),
|
|
toFixedHex(input.relayer, 20),
|
|
toFixedHex(input.fee),
|
|
toFixedHex(input.refund),
|
|
]
|
|
let { reason } = await tornado.withdraw(proof, ...args, { value: 1, from: relayer, gasPrice: '0' })
|
|
.should.be.rejected
|
|
reason.should.be.equal('Incorrect refund amount received by the contract')
|
|
;({ reason } = await tornado.withdraw(proof, ...args, {
|
|
value: toBN(refund).mul(toBN(2)),
|
|
from: relayer,
|
|
gasPrice: '0',
|
|
}).should.be.rejected)
|
|
reason.should.be.equal('Incorrect refund amount received by the contract')
|
|
})
|
|
|
|
it.skip('should work with REAL USDT', async () => {
|
|
// dont forget to specify your token in .env
|
|
// USDT decimals is 6, so TOKEN_AMOUNT=1000000
|
|
// and sent `tokenDenomination` to accounts[0] (0x90F8bf6A479f320ead074411a4B0e7944Ea8c9C1)
|
|
// run ganache as
|
|
// ganache-cli --fork https://kovan.infura.io/v3/27a9649f826b4e31a83e07ae09a87448@13147586 -d --keepAliveTimeout 20
|
|
const deposit = generateDeposit()
|
|
const user = accounts[4]
|
|
const userBal = await usdtToken.balanceOf(user)
|
|
console.log('userBal', userBal.toString())
|
|
const senderBal = await usdtToken.balanceOf(sender)
|
|
console.log('senderBal', senderBal.toString())
|
|
tree.insert(deposit.commitment)
|
|
await usdtToken.transfer(user, tokenDenomination, { from: sender })
|
|
console.log('transfer done')
|
|
|
|
const balanceUserBefore = await usdtToken.balanceOf(user)
|
|
console.log('balanceUserBefore', balanceUserBefore.toString())
|
|
await usdtToken.approve(tornado.address, tokenDenomination, { from: user })
|
|
console.log('approve done')
|
|
const allowanceUser = await usdtToken.allowance(user, tornado.address)
|
|
console.log('allowanceUser', allowanceUser.toString())
|
|
await tornado.deposit(toFixedHex(deposit.commitment), { from: user, gasPrice: '0' })
|
|
console.log('deposit done')
|
|
|
|
const balanceUserAfter = await usdtToken.balanceOf(user)
|
|
balanceUserAfter.should.be.eq.BN(toBN(balanceUserBefore).sub(toBN(tokenDenomination)))
|
|
|
|
const { pathElements, pathIndices } = tree.path(0)
|
|
|
|
// Circuit input
|
|
const input = stringifyBigInts({
|
|
// public
|
|
root: tree.root(),
|
|
nullifierHash: pedersenHash(deposit.nullifier.leInt2Buff(31)),
|
|
relayer: operator,
|
|
recipient,
|
|
fee,
|
|
refund,
|
|
|
|
// private
|
|
nullifier: deposit.nullifier,
|
|
secret: deposit.secret,
|
|
pathElements: pathElements,
|
|
pathIndices: pathIndices,
|
|
})
|
|
|
|
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
|
|
const { proof } = websnarkUtils.toSolidityInput(proofData)
|
|
|
|
const balanceTornadoBefore = await usdtToken.balanceOf(tornado.address)
|
|
const balanceRelayerBefore = await usdtToken.balanceOf(relayer)
|
|
const ethBalanceOperatorBefore = await web3.eth.getBalance(operator)
|
|
const balanceReceiverBefore = await usdtToken.balanceOf(toFixedHex(recipient, 20))
|
|
const ethBalanceReceiverBefore = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
let isSpent = await tornado.isSpent(input.nullifierHash.toString(16).padStart(66, '0x00000'))
|
|
isSpent.should.be.equal(false)
|
|
|
|
// Uncomment to measure gas usage
|
|
// gas = await tornado.withdraw.estimateGas(proof, publicSignals, { from: relayer, gasPrice: '0' })
|
|
// console.log('withdraw gas:', gas)
|
|
const args = [
|
|
toFixedHex(input.root),
|
|
toFixedHex(input.nullifierHash),
|
|
toFixedHex(input.recipient, 20),
|
|
toFixedHex(input.relayer, 20),
|
|
toFixedHex(input.fee),
|
|
toFixedHex(input.refund),
|
|
]
|
|
const { logs } = await tornado.withdraw(proof, ...args, { value: refund, from: relayer, gasPrice: '0' })
|
|
|
|
const balanceTornadoAfter = await usdtToken.balanceOf(tornado.address)
|
|
const balanceRelayerAfter = await usdtToken.balanceOf(relayer)
|
|
const ethBalanceOperatorAfter = await web3.eth.getBalance(operator)
|
|
const balanceReceiverAfter = await usdtToken.balanceOf(toFixedHex(recipient, 20))
|
|
const ethBalanceReceiverAfter = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
const feeBN = toBN(fee.toString())
|
|
balanceTornadoAfter.should.be.eq.BN(toBN(balanceTornadoBefore).sub(toBN(tokenDenomination)))
|
|
balanceRelayerAfter.should.be.eq.BN(toBN(balanceRelayerBefore))
|
|
ethBalanceOperatorAfter.should.be.eq.BN(toBN(ethBalanceOperatorBefore).add(feeBN))
|
|
balanceReceiverAfter.should.be.eq.BN(toBN(balanceReceiverBefore).add(toBN(tokenDenomination)))
|
|
ethBalanceReceiverAfter.should.be.eq.BN(toBN(ethBalanceReceiverBefore).add(toBN(refund)).sub(feeBN))
|
|
|
|
logs[0].event.should.be.equal('Withdrawal')
|
|
logs[0].args.nullifierHash.should.be.eq.BN(toBN(input.nullifierHash.toString()))
|
|
logs[0].args.relayer.should.be.eq.BN(operator)
|
|
logs[0].args.fee.should.be.eq.BN(feeBN)
|
|
isSpent = await tornado.isSpent(input.nullifierHash.toString(16).padStart(66, '0x00000'))
|
|
isSpent.should.be.equal(true)
|
|
})
|
|
it.skip('should work with REAL DAI', async () => {
|
|
// dont forget to specify your token in .env
|
|
// and send `tokenDenomination` to accounts[0] (0x90F8bf6A479f320ead074411a4B0e7944Ea8c9C1)
|
|
// run ganache as
|
|
// npx ganache-cli --fork https://kovan.infura.io/v3/27a9649f826b4e31a83e07ae09a87448@13146218 -d --keepAliveTimeout 20
|
|
const deposit = generateDeposit()
|
|
const user = accounts[4]
|
|
const userBal = await token.balanceOf(user)
|
|
console.log('userBal', userBal.toString())
|
|
const senderBal = await token.balanceOf(sender)
|
|
console.log('senderBal', senderBal.toString())
|
|
tree.insert(deposit.commitment)
|
|
await token.transfer(user, tokenDenomination, { from: sender })
|
|
console.log('transfer done')
|
|
|
|
const balanceUserBefore = await token.balanceOf(user)
|
|
console.log('balanceUserBefore', balanceUserBefore.toString())
|
|
await token.approve(tornado.address, tokenDenomination, { from: user })
|
|
console.log('approve done')
|
|
await tornado.deposit(toFixedHex(deposit.commitment), { from: user, gasPrice: '0' })
|
|
console.log('deposit done')
|
|
|
|
const balanceUserAfter = await token.balanceOf(user)
|
|
balanceUserAfter.should.be.eq.BN(toBN(balanceUserBefore).sub(toBN(tokenDenomination)))
|
|
|
|
const { pathElements, pathIndices } = tree.path(0)
|
|
|
|
// Circuit input
|
|
const input = stringifyBigInts({
|
|
// public
|
|
root: tree.root(),
|
|
nullifierHash: pedersenHash(deposit.nullifier.leInt2Buff(31)),
|
|
relayer: operator,
|
|
recipient,
|
|
fee,
|
|
refund,
|
|
|
|
// private
|
|
nullifier: deposit.nullifier,
|
|
secret: deposit.secret,
|
|
pathElements: pathElements,
|
|
pathIndices: pathIndices,
|
|
})
|
|
|
|
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key)
|
|
const { proof } = websnarkUtils.toSolidityInput(proofData)
|
|
|
|
const balanceTornadoBefore = await token.balanceOf(tornado.address)
|
|
const balanceRelayerBefore = await token.balanceOf(relayer)
|
|
const ethBalanceOperatorBefore = await web3.eth.getBalance(operator)
|
|
const balanceReceiverBefore = await token.balanceOf(toFixedHex(recipient, 20))
|
|
const ethBalanceReceiverBefore = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
let isSpent = await tornado.isSpent(input.nullifierHash.toString(16).padStart(66, '0x00000'))
|
|
isSpent.should.be.equal(false)
|
|
|
|
// Uncomment to measure gas usage
|
|
// gas = await tornado.withdraw.estimateGas(proof, publicSignals, { from: relayer, gasPrice: '0' })
|
|
// console.log('withdraw gas:', gas)
|
|
const args = [
|
|
toFixedHex(input.root),
|
|
toFixedHex(input.nullifierHash),
|
|
toFixedHex(input.recipient, 20),
|
|
toFixedHex(input.relayer, 20),
|
|
toFixedHex(input.fee),
|
|
toFixedHex(input.refund),
|
|
]
|
|
const { logs } = await tornado.withdraw(proof, ...args, { value: refund, from: relayer, gasPrice: '0' })
|
|
console.log('withdraw done')
|
|
|
|
const balanceTornadoAfter = await token.balanceOf(tornado.address)
|
|
const balanceRelayerAfter = await token.balanceOf(relayer)
|
|
const ethBalanceOperatorAfter = await web3.eth.getBalance(operator)
|
|
const balanceReceiverAfter = await token.balanceOf(toFixedHex(recipient, 20))
|
|
const ethBalanceReceiverAfter = await web3.eth.getBalance(toFixedHex(recipient, 20))
|
|
const feeBN = toBN(fee.toString())
|
|
balanceTornadoAfter.should.be.eq.BN(toBN(balanceTornadoBefore).sub(toBN(tokenDenomination)))
|
|
balanceRelayerAfter.should.be.eq.BN(toBN(balanceRelayerBefore))
|
|
ethBalanceOperatorAfter.should.be.eq.BN(toBN(ethBalanceOperatorBefore).add(feeBN))
|
|
balanceReceiverAfter.should.be.eq.BN(toBN(balanceReceiverBefore).add(toBN(tokenDenomination)))
|
|
ethBalanceReceiverAfter.should.be.eq.BN(toBN(ethBalanceReceiverBefore).add(toBN(refund)).sub(feeBN))
|
|
|
|
logs[0].event.should.be.equal('Withdrawal')
|
|
logs[0].args.nullifierHash.should.be.eq.BN(toBN(input.nullifierHash.toString()))
|
|
logs[0].args.relayer.should.be.eq.BN(operator)
|
|
logs[0].args.fee.should.be.eq.BN(feeBN)
|
|
isSpent = await tornado.isSpent(input.nullifierHash.toString(16).padStart(66, '0x00000'))
|
|
isSpent.should.be.equal(true)
|
|
})
|
|
})
|
|
|
|
afterEach(async () => {
|
|
await revertSnapshot(snapshotId.result)
|
|
// eslint-disable-next-line require-atomic-updates
|
|
snapshotId = await takeSnapshot()
|
|
tree = new MerkleTree(levels)
|
|
})
|
|
})
|