import { BlockchainLifecycle, devConstants } from '@0xproject/dev-utils'; import { LogWithDecodedArgs } from '@0xproject/types'; import { BigNumber } from '@0xproject/utils'; import { Web3Wrapper } from '@0xproject/web3-wrapper'; import * as chai from 'chai'; import { MetacoinContract, TransferContractEventArgs } from '../src/contract_wrappers/metacoin'; import { chaiSetup } from './utils/chai_setup'; import { deployer } from './utils/deployer'; import { provider, web3Wrapper } from './utils/web3_wrapper'; chaiSetup.configure(); const { expect } = chai; const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); describe('Metacoin', () => { let metacoin: MetacoinContract; const ownerAddress = devConstants.TESTRPC_FIRST_ADDRESS; const INITIAL_BALANCE = new BigNumber(10000); before(async () => { const metacoinInstance = await deployer.deployAsync('Metacoin'); web3Wrapper.abiDecoder.addABI(metacoinInstance.abi); metacoin = new MetacoinContract(metacoinInstance.abi, metacoinInstance.address, provider); }); beforeEach(async () => { await blockchainLifecycle.startAsync(); }); afterEach(async () => { await blockchainLifecycle.revertAsync(); }); describe('#constructor', () => { it(`should initialy give ${INITIAL_BALANCE} tokens to the creator`, async () => { const balance = await metacoin.balances.callAsync(ownerAddress); expect(balance).to.be.bignumber.equal(INITIAL_BALANCE); }); }); describe('#transfer', () => { it(`should successfully transfer tokens (via transfer1)`, async () => { const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000'; const amount = INITIAL_BALANCE.div(2); const oldBalance = await metacoin.balances.callAsync(ZERO_ADDRESS); expect(oldBalance).to.be.bignumber.equal(0); const txHash = await metacoin.transfer1.sendTransactionAsync( { to: ZERO_ADDRESS, amount, }, { from: devConstants.TESTRPC_FIRST_ADDRESS }, ); const txReceipt = await web3Wrapper.awaitTransactionMinedAsync(txHash); const transferLogs = txReceipt.logs[0] as LogWithDecodedArgs; expect(transferLogs.args).to.be.deep.equal({ _to: ZERO_ADDRESS, _from: devConstants.TESTRPC_FIRST_ADDRESS, _value: amount, }); const newBalance = await metacoin.balances.callAsync(ZERO_ADDRESS); expect(newBalance).to.be.bignumber.equal(amount); }); it(`should successfully transfer tokens (via transfer2)`, async () => { const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000'; const amount = INITIAL_BALANCE.div(2); const oldBalance = await metacoin.balances.callAsync(ZERO_ADDRESS); expect(oldBalance).to.be.bignumber.equal(0); const callback = 59; const txHash = await metacoin.transfer2.sendTransactionAsync( { to: ZERO_ADDRESS, amount, }, callback, { from: devConstants.TESTRPC_FIRST_ADDRESS }, ); const txReceipt = await web3Wrapper.awaitTransactionMinedAsync(txHash); const transferLogs = txReceipt.logs[0] as LogWithDecodedArgs; expect(transferLogs.args).to.be.deep.equal({ _to: ZERO_ADDRESS, _from: devConstants.TESTRPC_FIRST_ADDRESS, _value: amount, }); const newBalance = await metacoin.balances.callAsync(ZERO_ADDRESS); expect(newBalance).to.be.bignumber.equal(amount); }); it(`should successfully transfer tokens (via transfer3)`, async () => { const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000'; const amount = INITIAL_BALANCE.div(2); const oldBalance = await metacoin.balances.callAsync(ZERO_ADDRESS); expect(oldBalance).to.be.bignumber.equal(0); const callback = 59; const txHash = await metacoin.transfer3.sendTransactionAsync( { transferData: { to: ZERO_ADDRESS, amount, }, callback, }, { from: devConstants.TESTRPC_FIRST_ADDRESS }, ); const txReceipt = await web3Wrapper.awaitTransactionMinedAsync(txHash); const transferLogs = txReceipt.logs[0] as LogWithDecodedArgs; expect(transferLogs.args).to.be.deep.equal({ _to: ZERO_ADDRESS, _from: devConstants.TESTRPC_FIRST_ADDRESS, _value: amount, }); const newBalance = await metacoin.balances.callAsync(ZERO_ADDRESS); expect(newBalance).to.be.bignumber.equal(amount); }); }); });