109 lines
3.5 KiB
JavaScript
109 lines
3.5 KiB
JavaScript
const path = require('path')
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const Web3 = require('web3')
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const assert = require('assert')
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const promiseRetry = require('promise-retry')
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const { user, ercToErcBridge } = require('../../e2e-commons/constants.json')
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const { contractsPath, homeRPC, foreignRPC } = require('../config.json')
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const { generateNewBlock } = require('../../e2e-commons/utils')
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const abisDir = path.join(__dirname, '..', contractsPath, 'build/contracts')
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const homeWeb3 = new Web3(new Web3.providers.HttpProvider(homeRPC))
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const foreignWeb3 = new Web3(new Web3.providers.HttpProvider(foreignRPC))
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const HOME_BRIDGE_ADDRESS = ercToErcBridge.home
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const FOREIGN_BRIDGE_ADDRESS = ercToErcBridge.foreign
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const { toBN } = foreignWeb3.utils
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homeWeb3.eth.accounts.wallet.add(user.privateKey)
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foreignWeb3.eth.accounts.wallet.add(user.privateKey)
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const tokenAbi = require(path.join(abisDir, 'ERC677BridgeToken.json')).abi
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const erc20Token = new foreignWeb3.eth.Contract(
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tokenAbi,
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ercToErcBridge.foreignToken
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)
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const erc677Token = new homeWeb3.eth.Contract(
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tokenAbi,
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ercToErcBridge.homeToken
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)
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describe('erc to erc', () => {
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it('should convert tokens in foreign to tokens in home', async () => {
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const balance = await erc20Token.methods.balanceOf(user.address).call()
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assert(!toBN(balance).isZero(), 'Account should have tokens')
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// send tokens to foreign bridge
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await erc20Token.methods
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.transfer(FOREIGN_BRIDGE_ADDRESS, homeWeb3.utils.toWei('0.01'))
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.send({
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from: user.address,
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gas: '1000000'
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})
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.catch(e => {
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console.error(e)
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})
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// Send a trivial transaction to generate a new block since the watcher
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// is configured to wait 1 confirmation block
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await generateNewBlock(foreignWeb3, user.address)
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// check that balance increases
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await promiseRetry(async retry => {
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const balance = await erc677Token.methods.balanceOf(user.address).call()
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if (toBN(balance).isZero()) {
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retry()
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}
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})
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})
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it('should convert tokens in home to tokens in foreign', async () => {
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const originalBalance = await erc20Token.methods.balanceOf(user.address).call()
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// check that account has tokens in home chain
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const balance = await erc677Token.methods.balanceOf(user.address).call()
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assert(!toBN(balance).isZero(), 'Account should have tokens')
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// send transaction to home bridge
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const depositTx = await erc677Token.methods
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.transferAndCall(HOME_BRIDGE_ADDRESS, homeWeb3.utils.toWei('0.01'), '0x')
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.send({
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from: user.address,
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gas: '1000000'
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})
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.catch(e => {
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console.error(e)
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})
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// Send a trivial transaction to generate a new block since the watcher
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// is configured to wait 1 confirmation block
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await generateNewBlock(homeWeb3, user.address)
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// The bridge should create a new transaction with a CollectedSignatures
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// event so we generate another trivial transaction
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await promiseRetry(
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async retry => {
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const lastBlockNumber = await homeWeb3.eth.getBlockNumber()
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if (lastBlockNumber >= depositTx.blockNumber + 2) {
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await generateNewBlock(homeWeb3, user.address)
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} else {
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retry()
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}
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},
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{
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forever: true,
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factor: 1,
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minTimeout: 500
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}
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)
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// check that balance increases
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await promiseRetry(async retry => {
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const balance = await erc20Token.methods.balanceOf(user.address).call()
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if (toBN(balance).lte(toBN(originalBalance))) {
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retry()
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}
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})
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})
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})
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