From a365ab11d24ff8365b7d69a948b1b5211b772f5e Mon Sep 17 00:00:00 2001 From: Leonid Logvinov Date: Wed, 5 Dec 2018 14:23:35 +0100 Subject: Refactor out tokens from core contracts package --- contracts/tokens/test/weth9.ts | 142 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 contracts/tokens/test/weth9.ts (limited to 'contracts/tokens/test/weth9.ts') diff --git a/contracts/tokens/test/weth9.ts b/contracts/tokens/test/weth9.ts new file mode 100644 index 000000000..6a3948e2c --- /dev/null +++ b/contracts/tokens/test/weth9.ts @@ -0,0 +1,142 @@ +import { + chaiSetup, + constants, + expectInsufficientFundsAsync, + expectTransactionFailedWithoutReasonAsync, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; + +import { artifacts, WETH9Contract } from '../src'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('EtherToken', () => { + let account: string; + const gasPrice = Web3Wrapper.toBaseUnitAmount(new BigNumber(20), 9); + let etherToken: WETH9Contract; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + account = accounts[0]; + + etherToken = await WETH9Contract.deployFrom0xArtifactAsync(artifacts.WETH9, provider, { + gasPrice, + ...txDefaults, + }); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('deposit', () => { + it('should throw if caller attempts to deposit more Ether than caller balance', async () => { + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const ethToDeposit = initEthBalance.plus(1); + + return expectInsufficientFundsAsync(etherToken.deposit.sendTransactionAsync({ value: ethToDeposit })); + }); + + it('should convert deposited Ether to wrapped Ether tokens', async () => { + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1))); + + const txHash = await etherToken.deposit.sendTransactionAsync({ value: ethToDeposit }); + const receipt = await web3Wrapper.awaitTransactionSuccessAsync( + txHash, + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const ethSpentOnGas = gasPrice.times(receipt.gasUsed); + const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas))); + expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit)); + }); + }); + + describe('withdraw', () => { + it('should throw if caller attempts to withdraw greater than caller balance', async () => { + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + const ethTokensToWithdraw = initEthTokenBalance.plus(1); + + return expectTransactionFailedWithoutReasonAsync( + etherToken.withdraw.sendTransactionAsync(ethTokensToWithdraw), + ); + }); + + it('should convert ether tokens to ether with sufficient balance', async () => { + const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1))); + await web3Wrapper.awaitTransactionSuccessAsync( + await etherToken.deposit.sendTransactionAsync({ value: ethToDeposit }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const ethTokensToWithdraw = initEthTokenBalance; + expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0); + const txHash = await etherToken.withdraw.sendTransactionAsync(ethTokensToWithdraw, { + gas: constants.MAX_ETHERTOKEN_WITHDRAW_GAS, + }); + const receipt = await web3Wrapper.awaitTransactionSuccessAsync( + txHash, + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const ethSpentOnGas = gasPrice.times(receipt.gasUsed); + const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + expect(finalEthBalance).to.be.bignumber.equal( + initEthBalance.plus(ethTokensToWithdraw.minus(ethSpentOnGas)), + ); + expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.minus(ethTokensToWithdraw)); + }); + }); + + describe('fallback', () => { + it('should convert sent ether to ether tokens', async () => { + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + const ethToDeposit = Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 18); + + const txHash = await web3Wrapper.sendTransactionAsync({ + from: account, + to: etherToken.address, + value: ethToDeposit, + gasPrice, + }); + + const receipt = await web3Wrapper.awaitTransactionSuccessAsync( + txHash, + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const ethSpentOnGas = gasPrice.times(receipt.gasUsed); + const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas))); + expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit)); + }); + }); +}); -- cgit v1.2.3