tokenbridge/oracle-e2e/test/ercToNative.js
2019-12-02 17:20:53 -03:00

393 lines
15 KiB
JavaScript

const Web3 = require('web3')
const assert = require('assert')
const promiseRetry = require('promise-retry')
const {
user,
secondUser,
validator,
ercToNativeBridge,
homeRPC,
foreignRPC
} = require('../../e2e-commons/constants.json')
const { ERC677_BRIDGE_TOKEN_ABI, FOREIGN_ERC_TO_NATIVE_ABI, SAI_TOP } = require('../../commons')
const { generateNewBlock } = require('../../e2e-commons/utils')
const homeWeb3 = new Web3(new Web3.providers.HttpProvider(homeRPC.URL))
const foreignWeb3 = new Web3(new Web3.providers.HttpProvider(foreignRPC.URL))
const COMMON_HOME_BRIDGE_ADDRESS = ercToNativeBridge.home
const COMMON_FOREIGN_BRIDGE_ADDRESS = ercToNativeBridge.foreign
const { toBN } = foreignWeb3.utils
homeWeb3.eth.accounts.wallet.add(user.privateKey)
foreignWeb3.eth.accounts.wallet.add(user.privateKey)
foreignWeb3.eth.accounts.wallet.add(validator.privateKey)
const erc20Token = new foreignWeb3.eth.Contract(ERC677_BRIDGE_TOKEN_ABI, ercToNativeBridge.foreignToken)
const foreignBridge = new foreignWeb3.eth.Contract(FOREIGN_ERC_TO_NATIVE_ABI, COMMON_FOREIGN_BRIDGE_ADDRESS)
describe('erc to native', () => {
let halfDuplexTokenAddress
let halfDuplexToken
before(async () => {
halfDuplexTokenAddress = await foreignBridge.methods.halfDuplexErc20token().call()
halfDuplexToken = new foreignWeb3.eth.Contract(ERC677_BRIDGE_TOKEN_ABI, halfDuplexTokenAddress)
// set min threshold for swap
await foreignBridge.methods.setMinHDTokenBalance(foreignWeb3.utils.toWei('1', 'ether')).send({
from: validator.address,
gas: '1000000'
})
})
it('should convert tokens in foreign to coins in home', async () => {
const balance = await erc20Token.methods.balanceOf(user.address).call()
const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
const initialBalanceSecondUser = await homeWeb3.eth.getBalance(secondUser.address)
assert(!toBN(balance).isZero(), 'Account should have tokens')
// approve tokens to foreign bridge
await erc20Token.methods
.approve(COMMON_FOREIGN_BRIDGE_ADDRESS, homeWeb3.utils.toWei('0.01'))
.send({
from: user.address,
gas: '1000000'
})
.catch(e => {
console.error(e)
})
// call bridge method to transfer tokens to a different recipient
await foreignBridge.methods
.relayTokens(secondUser.address, homeWeb3.utils.toWei('0.01'))
.send({
from: user.address,
gas: '1000000'
})
.catch(e => {
console.error(e)
})
// Send a trivial transaction to generate a new block since the watcher
// is configured to wait 1 confirmation block
await generateNewBlock(foreignWeb3, user.address)
// check that balance increases
await promiseRetry(async retry => {
const balance = await homeWeb3.eth.getBalance(user.address)
const secondUserbalance = await homeWeb3.eth.getBalance(secondUser.address)
assert(toBN(balance).lte(toBN(originalBalanceOnHome)), 'User balance should be the same')
if (toBN(secondUserbalance).lte(toBN(initialBalanceSecondUser))) {
retry()
}
})
const transferValue = homeWeb3.utils.toWei('0.05')
// send tokens to foreign bridge
await erc20Token.methods
.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, transferValue)
.send({
from: user.address,
gas: '1000000'
})
.catch(e => {
console.error(e)
})
// Send a trivial transaction to generate a new block since the watcher
// is configured to wait 1 confirmation block
await generateNewBlock(foreignWeb3, user.address)
// check that balance increases
await promiseRetry(async retry => {
const balance = await homeWeb3.eth.getBalance(user.address)
if (toBN(balance).lte(toBN(originalBalanceOnHome))) {
retry()
} else {
assert(
toBN(balance).eq(toBN(originalBalanceOnHome).add(toBN(transferValue))),
'User balance should be increased only by second transfer'
)
}
})
})
it('should convert half duplex token in foreign to native token in home', async () => {
const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
const bridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
const bridgeHalfDuplexBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
assert(toBN(bridgeHalfDuplexBalance).isZero(), 'Bridge balance should be zero')
const valueToTransfer = foreignWeb3.utils.toWei('1', 'ether')
// this transfer won't trigger a call to swap tokens
await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer).send({
from: user.address,
gas: '1000000'
})
// Send a trivial transaction to generate a new block since the watcher
// is configured to wait 1 confirmation block
await generateNewBlock(foreignWeb3, user.address)
// check that balance increases
await promiseRetry(async retry => {
const balance = await homeWeb3.eth.getBalance(user.address)
if (toBN(balance).lte(toBN(originalBalanceOnHome))) {
retry()
} else {
assert(
toBN(balance).eq(toBN(originalBalanceOnHome).add(toBN(valueToTransfer))),
'User balance should be increased by the half duplex token transfer'
)
}
})
const updatedBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
const updatedBridgeHalfDuplexBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
assert(
toBN(updatedBridgeHalfDuplexBalance).eq(toBN(bridgeHalfDuplexBalance).add(toBN(valueToTransfer))),
'Bridge balance should reflect the transfer value'
)
// this transfer will trigger call to swap tokens
await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer).send({
from: user.address,
gas: '1000000'
})
await generateNewBlock(foreignWeb3, user.address)
await promiseRetry(async retry => {
const userBalance = await homeWeb3.eth.getBalance(user.address)
const updatedBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
if (
toBN(userBalance).lte(toBN(updatedBalanceOnHome)) ||
toBN(updatedBridgeErc20TokenBalance).lte(toBN(bridgeErc20TokenBalance))
) {
retry()
} else {
assert(
toBN(userBalance).eq(toBN(updatedBalanceOnHome).add(toBN(valueToTransfer))),
'User balance should be increased by the half duplex token transfer'
)
const updatedBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
assert(toBN(updatedBalance).isZero(), 'Half duplex bridge balance should be zero')
assert(
toBN(updatedBridgeErc20TokenBalance).eq(
toBN(bridgeErc20TokenBalance).add(toBN(foreignWeb3.utils.toWei('2', 'ether')))
),
'Erc20 token balance should be correctly increased by the token swap'
)
}
})
})
it('should convert half duplex token in foreign to native token in home for alternative receiver ', async () => {
const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
const initialBalanceSecondUser = await homeWeb3.eth.getBalance(secondUser.address)
const bridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
const valueToTransfer = foreignWeb3.utils.toWei('1', 'ether')
// approve tokens to foreign bridge
await halfDuplexToken.methods
.approve(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer)
.send({
from: user.address,
gas: '1000000'
})
.catch(e => {
console.error(e)
})
// call bridge method to transfer tokens to a different recipient
await foreignBridge.methods['relayTokens(address,uint256,address)'](
secondUser.address,
valueToTransfer,
halfDuplexTokenAddress
)
.send({
from: user.address,
gas: '1000000'
})
.catch(e => {
console.error(e)
})
// Send a trivial transaction to generate a new block since the watcher
// is configured to wait 1 confirmation block
await generateNewBlock(foreignWeb3, user.address)
// check that balance increases
await promiseRetry(async retry => {
const secondUserbalance = await homeWeb3.eth.getBalance(secondUser.address)
const updatedBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
const userbalance = await homeWeb3.eth.getBalance(user.address)
assert(toBN(userbalance).lte(toBN(originalBalanceOnHome)), 'User balance should be the same')
if (
toBN(secondUserbalance).lte(toBN(initialBalanceSecondUser)) ||
toBN(updatedBridgeErc20TokenBalance).lte(toBN(bridgeErc20TokenBalance))
) {
retry()
} else {
assert(
toBN(secondUserbalance).eq(toBN(initialBalanceSecondUser).add(toBN(valueToTransfer))),
'User balance should be increased by the half duplex token transfer'
)
const updatedHDBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
assert(toBN(updatedHDBalance).isZero(), 'Half duplex bridge balance should be zero')
assert(
toBN(updatedBridgeErc20TokenBalance).eq(toBN(bridgeErc20TokenBalance).add(toBN(valueToTransfer))),
'Erc20 token balance should be correctly increased by the token swap'
)
}
})
})
it('should not relay half duplex token transfer after Emergency Shutdown', async () => {
const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
const bridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
const bridgeHalfDuplexBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
const block = await foreignWeb3.eth.getBlock('latest')
const saiTop = new foreignWeb3.eth.Contract(SAI_TOP, ercToNativeBridge.saiTop)
// Trigger Emergency Shutdown
await saiTop.methods
.setCaged(block.timestamp)
.send({
from: user.address,
gas: '1000000'
})
.catch(e => {
console.error(e)
})
const valueToTransfer = foreignWeb3.utils.toWei('1', 'ether')
await generateNewBlock(foreignWeb3, user.address)
// this transfer won't trigger a call to swap tokens
await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, valueToTransfer).send({
from: user.address,
gas: '1000000'
})
// Send a trivial transaction to generate a new block since the watcher
// is configured to wait 1 confirmation block
await generateNewBlock(foreignWeb3, user.address)
// check that transfer and swap are not processed in the next blocks.
await promiseRetry(async (retry, number) => {
const balanceOnHome = await homeWeb3.eth.getBalance(user.address)
const currentBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
const currentBridgeHalfDuplexBalance = await halfDuplexToken.methods
.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS)
.call()
assert(toBN(balanceOnHome).eq(toBN(originalBalanceOnHome)), 'User balance should be the same')
assert(
toBN(currentBridgeHalfDuplexBalance).eq(toBN(bridgeHalfDuplexBalance).add(toBN(valueToTransfer))),
'Half duplex balance should be the value of transfer'
)
assert(toBN(currentBridgeErc20TokenBalance).eq(toBN(bridgeErc20TokenBalance)), 'erc20 balance should not change')
// generate new blocks
await generateNewBlock(foreignWeb3, user.address)
// after several retries, the state is corrects
if (number < 4) {
retry()
}
})
// let's undo the Emergency Shutdown to check that the oracle is still working
await saiTop.methods.setCaged('0').send({
from: user.address,
gas: '1000000'
})
const newValueToTransfer = foreignWeb3.utils.toWei('2', 'ether')
await halfDuplexToken.methods.transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, newValueToTransfer).send({
from: user.address,
gas: '1000000'
})
await generateNewBlock(foreignWeb3, user.address)
await promiseRetry(async retry => {
const userBalance = await homeWeb3.eth.getBalance(user.address)
const updatedBridgeErc20TokenBalance = await erc20Token.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
if (
toBN(userBalance).lte(toBN(originalBalanceOnHome)) ||
toBN(updatedBridgeErc20TokenBalance).lte(toBN(bridgeErc20TokenBalance))
) {
retry()
} else {
assert(
toBN(userBalance).eq(toBN(originalBalanceOnHome).add(toBN(newValueToTransfer))),
'User balance should be increased by the half duplex token transfer'
)
const updatedHDBalance = await halfDuplexToken.methods.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS).call()
assert(toBN(updatedHDBalance).isZero(), 'Half duplex bridge balance should be zero')
assert(
toBN(updatedBridgeErc20TokenBalance).eq(
toBN(bridgeErc20TokenBalance)
.add(toBN(valueToTransfer))
.add(toBN(newValueToTransfer))
),
'Erc20 token balance should be correctly increased by the token swap'
)
}
})
})
it('should convert coins in home to tokens in foreign', async () => {
const originalBalance = await erc20Token.methods.balanceOf(user.address).call()
// check that account has tokens in home chain
const balance = await homeWeb3.eth.getBalance(user.address)
assert(!toBN(balance).isZero(), 'Account should have tokens')
// send transaction to home bridge
const depositTx = await homeWeb3.eth.sendTransaction({
from: user.address,
to: COMMON_HOME_BRIDGE_ADDRESS,
gasPrice: '1',
gas: '1000000',
value: homeWeb3.utils.toWei('0.01')
})
// Send a trivial transaction to generate a new block since the watcher
// is configured to wait 1 confirmation block
await generateNewBlock(homeWeb3, user.address)
// The bridge should create a new transaction with a CollectedSignatures
// event so we generate another trivial transaction
await promiseRetry(
async retry => {
const lastBlockNumber = await homeWeb3.eth.getBlockNumber()
if (lastBlockNumber >= depositTx.blockNumber + 2) {
await generateNewBlock(homeWeb3, user.address)
} else {
retry()
}
},
{
forever: true,
factor: 1,
minTimeout: 500
}
)
// check that balance increases
await promiseRetry(async retry => {
const balance = await erc20Token.methods.balanceOf(user.address).call()
if (toBN(balance).lte(toBN(originalBalance))) {
retry()
}
})
})
})