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import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
import { BigNumber } from '@0xproject/utils';
import { Web3Wrapper } from '@0xproject/web3-wrapper';
import * as chai from 'chai';
import * as Web3 from 'web3';
import { DummyTokenContract } from '../../src/contract_wrappers/generated/dummy_token';
import { TokenTransferProxyContract } from '../../src/contract_wrappers/generated/token_transfer_proxy';
import { Balances } from '../../util/balances';
import { constants } from '../../util/constants';
import { ContractName } from '../../util/types';
import { chaiSetup } from '../utils/chai_setup';
import { deployer } from '../utils/deployer';
chaiSetup.configure();
const expect = chai.expect;
const web3 = web3Factory.create();
const web3Wrapper = new Web3Wrapper(web3.currentProvider);
const blockchainLifecycle = new BlockchainLifecycle();
describe('TokenTransferProxy', () => {
let accounts: string[];
let owner: string;
let notAuthorized: string;
const INIT_BAL = new BigNumber(100000000);
const INIT_ALLOW = new BigNumber(100000000);
let tokenTransferProxy: TokenTransferProxyContract;
let rep: DummyTokenContract;
let dmyBalances: Balances;
before(async () => {
accounts = await web3Wrapper.getAvailableAddressesAsync();
owner = notAuthorized = accounts[0];
const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
tokenTransferProxy = new TokenTransferProxyContract(
web3Wrapper,
tokenTransferProxyInstance.abi,
tokenTransferProxyInstance.address,
);
const repInstance = await deployer.deployAsync(ContractName.DummyToken);
rep = new DummyTokenContract(web3Wrapper, repInstance.abi, repInstance.address);
dmyBalances = new Balances([rep], [accounts[0], accounts[1]]);
await Promise.all([
rep.approve.sendTransactionAsync(tokenTransferProxy.address, INIT_ALLOW, {
from: accounts[0],
}),
rep.setBalance.sendTransactionAsync(accounts[0], INIT_BAL, { from: owner }),
rep.approve.sendTransactionAsync(tokenTransferProxy.address, INIT_ALLOW, {
from: accounts[1],
}),
rep.setBalance.sendTransactionAsync(accounts[1], INIT_BAL, { from: owner }),
]);
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
});
afterEach(async () => {
await blockchainLifecycle.revertAsync();
});
describe('transferFrom', () => {
it('should throw when called by an unauthorized address', async () => {
expect(
tokenTransferProxy.transferFrom.sendTransactionAsync(
rep.address,
accounts[0],
accounts[1],
new BigNumber(1000),
{
from: notAuthorized,
},
),
).to.be.rejectedWith(constants.REVERT);
});
it('should allow an authorized address to transfer', async () => {
const balances = await dmyBalances.getAsync();
await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(notAuthorized, {
from: owner,
});
const transferAmt = new BigNumber(10000);
await tokenTransferProxy.transferFrom.sendTransactionAsync(
rep.address,
accounts[0],
accounts[1],
transferAmt,
{
from: notAuthorized,
},
);
const newBalances = await dmyBalances.getAsync();
expect(newBalances[accounts[0]][rep.address]).to.be.bignumber.equal(
balances[accounts[0]][rep.address].minus(transferAmt),
);
expect(newBalances[accounts[1]][rep.address]).to.be.bignumber.equal(
balances[accounts[1]][rep.address].add(transferAmt),
);
});
});
});
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