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import { BlockchainLifecycle } from '@0xproject/dev-utils';
import { Web3Wrapper } from '@0xproject/web3-wrapper';
import * as chai from 'chai';
import * as Web3 from 'web3';
import { Artifacts } from '../../util/artifacts';
import { Balances } from '../../util/balances';
import { constants } from '../../util/constants';
import { ContractInstance } from '../../util/types';
import { chaiSetup } from '../utils/chai_setup';
chaiSetup.configure();
const expect = chai.expect;
const { TokenTransferProxy, DummyToken, TokenRegistry } = new Artifacts(artifacts);
// In order to benefit from type-safety, we re-assign the global web3 instance injected by Truffle
// with type `any` to a variable of type `Web3`.
const web3: Web3 = (global as any).web3;
const blockchainLifecycle = new BlockchainLifecycle(constants.RPC_URL);
describe('TokenTransferProxy', () => {
const web3Wrapper = new Web3Wrapper(web3.currentProvider);
let accounts: string[];
let owner: string;
let notAuthorized: string;
const INIT_BAL = 100000000;
const INIT_ALLOW = 100000000;
let tokenTransferProxy: ContractInstance;
let tokenRegistry: ContractInstance;
let rep: ContractInstance;
let dmyBalances: Balances;
before(async () => {
accounts = await web3Wrapper.getAvailableAddressesAsync();
owner = notAuthorized = accounts[0];
[tokenTransferProxy, tokenRegistry] = await Promise.all([
TokenTransferProxy.deployed(),
TokenRegistry.deployed(),
]);
const repAddress = await tokenRegistry.getTokenAddressBySymbol('REP');
rep = DummyToken.at(repAddress);
dmyBalances = new Balances([rep], [accounts[0], accounts[1]]);
await Promise.all([
rep.approve(TokenTransferProxy.address, INIT_ALLOW, {
from: accounts[0],
}),
rep.setBalance(accounts[0], INIT_BAL, { from: owner }),
rep.approve(TokenTransferProxy.address, INIT_ALLOW, {
from: accounts[1],
}),
rep.setBalance(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(rep.address, accounts[0], accounts[1], 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(notAuthorized, {
from: owner,
});
const transferAmt = 10000;
await tokenTransferProxy.transferFrom(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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