import { LogWithDecodedArgs, TransactionReceiptWithDecodedLogs, ZeroEx } from '0x.js';
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 { AssetProxyDispatcherContract } from '../../src/contract_wrappers/generated/asset_proxy_dispatcher';
import { DummyERC721TokenContract } from '../../src/contract_wrappers/generated/dummy_e_r_c721_token';
import { DummyTokenContract } from '../../src/contract_wrappers/generated/dummy_token';
import { ERC20ProxyContract } from '../../src/contract_wrappers/generated/e_r_c20_proxy';
import { ERC721ProxyContract } from '../../src/contract_wrappers/generated/e_r_c721_proxy';
import { ERC20Proxy_v1Contract } from '../../src/contract_wrappers/generated/erc20proxy_v1';
import { TokenTransferProxyContract } from '../../src/contract_wrappers/generated/token_transfer_proxy';
import { encodeERC20ProxyData, encodeERC20V1ProxyData, encodeERC721ProxyData } from '../../src/utils/asset_proxy_utils';
import { Balances } from '../../src/utils/balances';
import { constants } from '../../src/utils/constants';
import { AssetProxyId, ContractName } from '../../src/utils/types';
import { chaiSetup } from '../utils/chai_setup';
import { deployer } from '../utils/deployer';
import { provider, web3Wrapper } from '../utils/web3_wrapper';
chaiSetup.configure();
const expect = chai.expect;
const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
describe('Asset Transfer Proxies', () => {
let owner: string;
let notOwner: string;
let assetProxyDispatcherAddress: string;
let tokenOwner: string;
let makerAddress: string;
let takerAddress: string;
let zrx: DummyTokenContract;
let ck: DummyERC721TokenContract;
let dmyBalances: Balances;
let tokenTransferProxy: TokenTransferProxyContract;
let erc20TransferProxyV1: ERC20Proxy_v1Contract;
let erc20TransferProxy: ERC20ProxyContract;
let erc721TransferProxy: ERC721ProxyContract;
const makerTokenId = new BigNumber('0x1010101010101010101010101010101010101010101010101010101010101010');
const INITIAL_BALANCE = new BigNumber(10000);
before(async () => {
// Setup accounts & addresses
const accounts = await web3Wrapper.getAvailableAddressesAsync();
owner = tokenOwner = accounts[0];
notOwner = accounts[1];
assetProxyDispatcherAddress = accounts[2];
makerAddress = accounts[3];
takerAddress = accounts[4];
// Deploy TokenTransferProxy
const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
tokenTransferProxy = new TokenTransferProxyContract(
tokenTransferProxyInstance.abi,
tokenTransferProxyInstance.address,
provider,
);
// Deploy ERC20 V1 Proxy
const erc20TransferProxyV1Instance = await deployer.deployAsync(ContractName.ERC20V1Proxy, [
tokenTransferProxy.address,
]);
erc20TransferProxyV1 = new ERC20Proxy_v1Contract(
erc20TransferProxyV1Instance.abi,
erc20TransferProxyV1Instance.address,
provider,
);
await erc20TransferProxyV1.addAuthorizedAddress.sendTransactionAsync(assetProxyDispatcherAddress, {
from: accounts[0],
});
await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(erc20TransferProxyV1.address, {
from: accounts[0],
});
// Deploy ERC20 Proxy
const erc20TransferProxyInstance = await deployer.deployAsync(ContractName.ERC20Proxy);
erc20TransferProxy = new ERC20ProxyContract(
erc20TransferProxyInstance.abi,
erc20TransferProxyInstance.address,
provider,
);
await erc20TransferProxy.addAuthorizedAddress.sendTransactionAsync(assetProxyDispatcherAddress, {
from: accounts[0],
});
// Deploy ERC721 Proxy
const erc721TransferProxyInstance = await deployer.deployAsync(ContractName.ERC721Proxy);
erc721TransferProxy = new ERC721ProxyContract(
erc721TransferProxyInstance.abi,
erc721TransferProxyInstance.address,
provider,
);
await erc721TransferProxy.addAuthorizedAddress.sendTransactionAsync(assetProxyDispatcherAddress, {
from: accounts[0],
});
// Deploy zrx and set initial balances
const zrxInstance = await deployer.deployAsync(ContractName.DummyToken, constants.DUMMY_TOKEN_ARGS);
zrx = new DummyTokenContract(zrxInstance.abi, zrxInstance.address, provider);
await zrx.setBalance.sendTransactionAsync(makerAddress, INITIAL_BALANCE, { from: tokenOwner });
await zrx.setBalance.sendTransactionAsync(takerAddress, INITIAL_BALANCE, { from: tokenOwner });
dmyBalances = new Balances([zrx], [makerAddress, takerAddress]);
await zrx.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_BALANCE, {
from: takerAddress,
});
await zrx.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_BALANCE, {
from: makerAddress,
});
await zrx.approve.sendTransactionAsync(erc20TransferProxy.address, INITIAL_BALANCE, {
from: takerAddress,
});
await zrx.approve.sendTransactionAsync(erc20TransferProxy.address, INITIAL_BALANCE, {
from: makerAddress,
});
// Deploy ck and set initial balances
const ckInstance = await deployer.deployAsync(ContractName.DummyERC721Token, constants.DUMMY_ERC721TOKEN_ARGS);
ck = new DummyERC721TokenContract(ckInstance.abi, ckInstance.address, provider);
await ck.setApprovalForAll.sendTransactionAsync(erc721TransferProxy.address, true, { from: makerAddress });
await ck.setApprovalForAll.sendTransactionAsync(erc721TransferProxy.address, true, { from: takerAddress });
await ck.mint.sendTransactionAsync(makerAddress, makerTokenId, { from: tokenOwner });
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
});
afterEach(async () => {
await blockchainLifecycle.revertAsync();
});
describe('Transfer Proxy - ERC20V1', () => {
it('should successfully encode/decode metadata', async () => {
const metadata = await erc20TransferProxyV1.encodeMetadata.callAsync(AssetProxyId.ERC20V1, zrx.address);
const address = await erc20TransferProxyV1.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(zrx.address);
});
it('should successfully decode metadata encoded by typescript helpers', async () => {
const metadata = encodeERC20V1ProxyData(zrx.address);
const address = await erc20TransferProxyV1.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(zrx.address);
});
it('should successfully encode/decode metadata padded with zeros', async () => {
const testAddress = '0x0000000000000000056000000000000000000010';
const metadata = await erc20TransferProxyV1.encodeMetadata.callAsync(AssetProxyId.ERC20V1, testAddress);
const address = await erc20TransferProxyV1.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(testAddress);
});
it('should successfully decode metadata encoded padded with zeros by typescript helpers', async () => {
const testAddress = '0x0000000000000000056000000000000000000010';
const metadata = encodeERC20V1ProxyData(testAddress);
const address = await erc20TransferProxyV1.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(testAddress);
});
it('should successfully transfer tokens', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC20V1ProxyData(zrx.address);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(10);
await erc20TransferProxyV1.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: assetProxyDispatcherAddress },
);
// Verify transfer was successful
const newBalances = await dmyBalances.getAsync();
expect(newBalances[makerAddress][zrx.address]).to.be.bignumber.equal(
balances[makerAddress][zrx.address].minus(amount),
);
expect(newBalances[takerAddress][zrx.address]).to.be.bignumber.equal(
balances[takerAddress][zrx.address].add(amount),
);
});
it('should throw if requesting address is not authorized', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC20V1ProxyData(zrx.address);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(10);
expect(
erc20TransferProxyV1.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: notOwner },
),
).to.be.rejectedWith(constants.REVERT);
});
});
describe('Transfer Proxy - ERC20', () => {
it('should successfully encode/decode metadata', async () => {
const metadata = await erc20TransferProxy.encodeMetadata.callAsync(AssetProxyId.ERC20, zrx.address);
const address = await erc20TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(zrx.address);
});
it('should successfully decode metadata encoded by typescript helpers', async () => {
const metadata = encodeERC20ProxyData(zrx.address);
const address = await erc20TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(zrx.address);
});
it('should successfully encode/decode metadata padded with zeros', async () => {
const testAddress = '0x0000000000000000056000000000000000000010';
const metadata = await erc20TransferProxy.encodeMetadata.callAsync(AssetProxyId.ERC20, testAddress);
const address = await erc20TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(testAddress);
});
it('should successfully decode metadata encoded padded with zeros by typescript helpers', async () => {
const testAddress = '0x0000000000000000056000000000000000000010';
const metadata = encodeERC20ProxyData(testAddress);
const address = await erc20TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(testAddress);
});
it('should successfully transfer tokens', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC20ProxyData(zrx.address);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(10);
await erc20TransferProxy.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: assetProxyDispatcherAddress },
);
// Verify transfer was successful
const newBalances = await dmyBalances.getAsync();
expect(newBalances[makerAddress][zrx.address]).to.be.bignumber.equal(
balances[makerAddress][zrx.address].minus(amount),
);
expect(newBalances[takerAddress][zrx.address]).to.be.bignumber.equal(
balances[takerAddress][zrx.address].add(amount),
);
});
it('should throw if requesting address is not authorized', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC20ProxyData(zrx.address);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(10);
expect(
erc20TransferProxy.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: notOwner },
),
).to.be.rejectedWith(constants.REVERT);
});
});
describe('Transfer Proxy - ERC721', () => {
it('should successfully encode/decode metadata', async () => {
const metadata = await erc721TransferProxy.encodeMetadata.callAsync(
AssetProxyId.ERC721,
ck.address,
makerTokenId,
);
const [address, tokenId] = await erc721TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(ck.address);
expect(tokenId).to.be.bignumber.equal(makerTokenId);
});
it('should successfully decode metadata encoded by typescript helpers', async () => {
const metadata = encodeERC721ProxyData(ck.address, makerTokenId);
const [address, tokenId] = await erc721TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(ck.address);
expect(tokenId).to.be.bignumber.equal(makerTokenId);
});
it('should successfully encode/decode metadata padded with zeros', async () => {
const testAddress = '0x0000000000000000056000000000000000000010';
const metadata = await erc721TransferProxy.encodeMetadata.callAsync(
AssetProxyId.ERC721,
testAddress,
makerTokenId,
);
const [address, tokenId] = await erc721TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(testAddress);
expect(tokenId).to.be.bignumber.equal(makerTokenId);
});
it('should successfully decode metadata encoded padded with zeros by typescript helpers', async () => {
const testAddress = '0x0000000000000000056000000000000000000010';
const metadata = encodeERC721ProxyData(testAddress, makerTokenId);
const [address, tokenId] = await erc721TransferProxy.decodeMetadata.callAsync(metadata);
expect(address).to.be.equal(testAddress);
expect(tokenId).to.be.bignumber.equal(makerTokenId);
});
it('should successfully transfer tokens', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC721ProxyData(ck.address, makerTokenId);
// Verify pre-condition
const ownerMakerToken = await ck.ownerOf.callAsync(makerTokenId);
expect(ownerMakerToken).to.be.bignumber.equal(makerAddress);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(1);
await erc721TransferProxy.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: assetProxyDispatcherAddress },
);
// Verify transfer was successful
const newOwnerMakerToken = await ck.ownerOf.callAsync(makerTokenId);
expect(newOwnerMakerToken).to.be.bignumber.equal(takerAddress);
});
it('should throw if transferring 0 amount of a token', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC721ProxyData(ck.address, makerTokenId);
// Verify pre-condition
const ownerMakerToken = await ck.ownerOf.callAsync(makerTokenId);
expect(ownerMakerToken).to.be.bignumber.equal(makerAddress);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(0);
expect(
erc20TransferProxy.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: notOwner },
),
).to.be.rejectedWith(constants.REVERT);
});
it('should throw if transferring >1 amount of a token', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC721ProxyData(ck.address, makerTokenId);
// Verify pre-condition
const ownerMakerToken = await ck.ownerOf.callAsync(makerTokenId);
expect(ownerMakerToken).to.be.bignumber.equal(makerAddress);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(500);
expect(
erc20TransferProxy.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: notOwner },
),
).to.be.rejectedWith(constants.REVERT);
});
it('should throw if requesting address is not authorized', async () => {
// Construct metadata for ERC20 proxy
const encodedProxyMetadata = encodeERC721ProxyData(zrx.address, makerTokenId);
// Perform a transfer from makerAddress to takerAddress
const balances = await dmyBalances.getAsync();
const amount = new BigNumber(1);
expect(
erc20TransferProxy.transferFrom.sendTransactionAsync(
encodedProxyMetadata,
makerAddress,
takerAddress,
amount,
{ from: notOwner },
),
).to.be.rejectedWith(constants.REVERT);
});
});
});
