393 lines
15 KiB
JavaScript
393 lines
15 KiB
JavaScript
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 {
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user,
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secondUser,
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validator,
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ercToNativeBridge,
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homeRPC,
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foreignRPC
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} = require('../../e2e-commons/constants.json')
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const { ERC677_BRIDGE_TOKEN_ABI, FOREIGN_ERC_TO_NATIVE_ABI, SAI_TOP } = require('../../commons')
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const { generateNewBlock } = require('../../e2e-commons/utils')
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const homeWeb3 = new Web3(new Web3.providers.HttpProvider(homeRPC.URL))
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const foreignWeb3 = new Web3(new Web3.providers.HttpProvider(foreignRPC.URL))
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const COMMON_HOME_BRIDGE_ADDRESS = ercToNativeBridge.home
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const COMMON_FOREIGN_BRIDGE_ADDRESS = ercToNativeBridge.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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foreignWeb3.eth.accounts.wallet.add(validator.privateKey)
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const erc20Token = new foreignWeb3.eth.Contract(ERC677_BRIDGE_TOKEN_ABI, ercToNativeBridge.foreignToken)
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const foreignBridge = new foreignWeb3.eth.Contract(FOREIGN_ERC_TO_NATIVE_ABI, COMMON_FOREIGN_BRIDGE_ADDRESS)
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describe('erc to native', () => {
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let halfDuplexTokenAddress
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let halfDuplexToken
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before(async () => {
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halfDuplexTokenAddress = await foreignBridge.methods.halfDuplexErc20token().call()
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halfDuplexToken = new foreignWeb3.eth.Contract(ERC677_BRIDGE_TOKEN_ABI, halfDuplexTokenAddress)
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// set min threshold for swap
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await foreignBridge.methods.setMinHDTokenBalance(foreignWeb3.utils.toWei('1', 'ether')).send({
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from: validator.address,
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gas: '1000000'
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})
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})
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it('should convert tokens in foreign to coins in home', async () => {
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const balance = await erc20Token.methods.balanceOf(user.address).call()
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const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
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const initialBalanceSecondUser = await homeWeb3.eth.getBalance(secondUser.address)
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assert(!toBN(balance).isZero(), 'Account should have tokens')
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// approve tokens to foreign bridge
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await erc20Token.methods
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.approve(COMMON_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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// call bridge method to transfer tokens to a different recipient
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await foreignBridge.methods
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.relayTokens(secondUser.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 homeWeb3.eth.getBalance(user.address)
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const secondUserbalance = await homeWeb3.eth.getBalance(secondUser.address)
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assert(toBN(balance).lte(toBN(originalBalanceOnHome)), 'User balance should be the same')
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if (toBN(secondUserbalance).lte(toBN(initialBalanceSecondUser))) {
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retry()
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}
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})
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const transferValue = homeWeb3.utils.toWei('0.05')
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// send tokens to foreign bridge
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await erc20Token.methods
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.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, transferValue)
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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 homeWeb3.eth.getBalance(user.address)
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if (toBN(balance).lte(toBN(originalBalanceOnHome))) {
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retry()
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} else {
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assert(
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toBN(balance).eq(toBN(originalBalanceOnHome).add(toBN(transferValue))),
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'User balance should be increased only by second transfer'
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)
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}
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})
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})
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it('should convert half duplex token in foreign to native token in home', async () => {
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const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
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const bridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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const bridgeHalfDuplexBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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assert(toBN(bridgeHalfDuplexBalance).isZero(), 'Bridge balance should be zero')
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const valueToTransfer = foreignWeb3.utils.toWei('1', 'ether')
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// this transfer won't trigger a call to swap tokens
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await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer).send({
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from: user.address,
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gas: '1000000'
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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 homeWeb3.eth.getBalance(user.address)
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if (toBN(balance).lte(toBN(originalBalanceOnHome))) {
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retry()
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} else {
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assert(
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toBN(balance).eq(toBN(originalBalanceOnHome).add(toBN(valueToTransfer))),
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'User balance should be increased by the half duplex token transfer'
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)
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}
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})
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const updatedBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
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const updatedBridgeHalfDuplexBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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assert(
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toBN(updatedBridgeHalfDuplexBalance).eq(toBN(bridgeHalfDuplexBalance).add(toBN(valueToTransfer))),
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'Bridge balance should reflect the transfer value'
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)
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// this transfer will trigger call to swap tokens
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await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer).send({
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from: user.address,
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gas: '1000000'
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})
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await generateNewBlock(foreignWeb3, user.address)
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await promiseRetry(async retry => {
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const userBalance = await homeWeb3.eth.getBalance(user.address)
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const updatedBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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if (
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toBN(userBalance).lte(toBN(updatedBalanceOnHome)) ||
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toBN(updatedBridgeErc20TokenBalance).lte(toBN(bridgeErc20TokenBalance))
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) {
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retry()
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} else {
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assert(
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toBN(userBalance).eq(toBN(updatedBalanceOnHome).add(toBN(valueToTransfer))),
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'User balance should be increased by the half duplex token transfer'
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)
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const updatedBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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assert(toBN(updatedBalance).isZero(), 'Half duplex bridge balance should be zero')
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assert(
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toBN(updatedBridgeErc20TokenBalance).eq(
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toBN(bridgeErc20TokenBalance).add(toBN(foreignWeb3.utils.toWei('2', 'ether')))
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),
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'Erc20 token balance should be correctly increased by the token swap'
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)
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}
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})
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})
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it('should convert half duplex token in foreign to native token in home for alternative receiver ', async () => {
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const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
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const initialBalanceSecondUser = await homeWeb3.eth.getBalance(secondUser.address)
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const bridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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const valueToTransfer = foreignWeb3.utils.toWei('1', 'ether')
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// approve tokens to foreign bridge
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await halfDuplexToken.methods
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.approve(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer)
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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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// call bridge method to transfer tokens to a different recipient
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await foreignBridge.methods['relayTokens(address,uint256,address)'](
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secondUser.address,
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valueToTransfer,
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halfDuplexTokenAddress
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)
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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 secondUserbalance = await homeWeb3.eth.getBalance(secondUser.address)
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const updatedBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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const userbalance = await homeWeb3.eth.getBalance(user.address)
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assert(toBN(userbalance).lte(toBN(originalBalanceOnHome)), 'User balance should be the same')
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if (
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toBN(secondUserbalance).lte(toBN(initialBalanceSecondUser)) ||
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toBN(updatedBridgeErc20TokenBalance).lte(toBN(bridgeErc20TokenBalance))
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) {
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retry()
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} else {
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assert(
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toBN(secondUserbalance).eq(toBN(initialBalanceSecondUser).add(toBN(valueToTransfer))),
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'User balance should be increased by the half duplex token transfer'
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)
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const updatedHDBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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assert(toBN(updatedHDBalance).isZero(), 'Half duplex bridge balance should be zero')
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assert(
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toBN(updatedBridgeErc20TokenBalance).eq(toBN(bridgeErc20TokenBalance).add(toBN(valueToTransfer))),
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'Erc20 token balance should be correctly increased by the token swap'
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)
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}
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})
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})
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it('should not relay half duplex token transfer after Emergency Shutdown', async () => {
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const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
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const bridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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const bridgeHalfDuplexBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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const block = await foreignWeb3.eth.getBlock('latest')
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const saiTop = new foreignWeb3.eth.Contract(SAI_TOP, ercToNativeBridge.saiTop)
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// Trigger Emergency Shutdown
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await saiTop.methods
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.setCaged(block.timestamp)
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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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const valueToTransfer = foreignWeb3.utils.toWei('1', 'ether')
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await generateNewBlock(foreignWeb3, user.address)
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// this transfer won't trigger a call to swap tokens
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await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer).send({
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from: user.address,
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gas: '1000000'
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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 transfer and swap are not processed in the next blocks.
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await promiseRetry(async (retry, number) => {
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const balanceOnHome = await homeWeb3.eth.getBalance(user.address)
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const currentBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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const currentBridgeHalfDuplexBalance = await halfDuplexToken.methods
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.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS)
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.call()
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assert(toBN(balanceOnHome).eq(toBN(originalBalanceOnHome)), 'User balance should be the same')
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assert(
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toBN(currentBridgeHalfDuplexBalance).eq(toBN(bridgeHalfDuplexBalance).add(toBN(valueToTransfer))),
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'Half duplex balance should be the value of transfer'
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)
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assert(toBN(currentBridgeErc20TokenBalance).eq(toBN(bridgeErc20TokenBalance)), 'erc20 balance should not change')
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// generate new blocks
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await generateNewBlock(foreignWeb3, user.address)
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// after several retries, the state is corrects
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if (number < 4) {
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retry()
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}
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})
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// let's undo the Emergency Shutdown to check that the oracle is still working
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await saiTop.methods.setCaged('0').send({
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from: user.address,
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gas: '1000000'
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})
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const newValueToTransfer = foreignWeb3.utils.toWei('2', 'ether')
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await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, newValueToTransfer).send({
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from: user.address,
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gas: '1000000'
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})
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await generateNewBlock(foreignWeb3, user.address)
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await promiseRetry(async retry => {
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const userBalance = await homeWeb3.eth.getBalance(user.address)
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const updatedBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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if (
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toBN(userBalance).lte(toBN(originalBalanceOnHome)) ||
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toBN(updatedBridgeErc20TokenBalance).lte(toBN(bridgeErc20TokenBalance))
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) {
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retry()
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} else {
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assert(
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toBN(userBalance).eq(toBN(originalBalanceOnHome).add(toBN(newValueToTransfer))),
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'User balance should be increased by the half duplex token transfer'
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)
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const updatedHDBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
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assert(toBN(updatedHDBalance).isZero(), 'Half duplex bridge balance should be zero')
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assert(
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toBN(updatedBridgeErc20TokenBalance).eq(
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toBN(bridgeErc20TokenBalance)
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.add(toBN(valueToTransfer))
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.add(toBN(newValueToTransfer))
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),
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'Erc20 token balance should be correctly increased by the token swap'
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)
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}
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})
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})
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it('should convert coins 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 homeWeb3.eth.getBalance(user.address)
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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 homeWeb3.eth.sendTransaction({
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from: user.address,
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to: COMMON_HOME_BRIDGE_ADDRESS,
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gasPrice: '1',
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gas: '1000000',
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value: homeWeb3.utils.toWei('0.01')
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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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