883 lines
38 KiB
TypeScript
883 lines
38 KiB
TypeScript
import {
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blockchainTests,
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constants,
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expect,
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getRandomInteger,
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randomAddress,
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verifyEventsFromLogs,
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} from '@0x/contracts-test-utils';
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import { MetaTransaction, MetaTransactionFields } from '@0x/protocol-utils';
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import { BigNumber, hexUtils, StringRevertError, ZeroExRevertErrors } from '@0x/utils';
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import * as _ from 'lodash';
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import { IZeroExContract, MetaTransactionsFeatureContract } from '../../src/wrappers';
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import { artifacts } from '../artifacts';
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import { abis } from '../utils/abis';
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import { fullMigrateAsync } from '../utils/migration';
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import { getRandomLimitOrder, getRandomRfqOrder } from '../utils/orders';
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import {
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TestMetaTransactionsNativeOrdersFeatureContract,
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TestMetaTransactionsNativeOrdersFeatureEvents,
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TestMetaTransactionsTransformERC20FeatureContract,
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TestMetaTransactionsTransformERC20FeatureEvents,
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TestMintableERC20TokenContract,
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} from '../wrappers';
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const { NULL_ADDRESS, ZERO_AMOUNT } = constants;
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blockchainTests.resets('MetaTransactions feature', env => {
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let owner: string;
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let maker: string;
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let sender: string;
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let notSigner: string;
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let signers: string[];
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let zeroEx: IZeroExContract;
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let feature: MetaTransactionsFeatureContract;
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let feeToken: TestMintableERC20TokenContract;
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let transformERC20Feature: TestMetaTransactionsTransformERC20FeatureContract;
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let nativeOrdersFeature: TestMetaTransactionsNativeOrdersFeatureContract;
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const MAX_FEE_AMOUNT = new BigNumber('1e18');
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const TRANSFORM_ERC20_ONE_WEI_VALUE = new BigNumber(555);
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const TRANSFORM_ERC20_FAILING_VALUE = new BigNumber(666);
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const TRANSFORM_ERC20_REENTER_VALUE = new BigNumber(777);
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const TRANSFORM_ERC20_BATCH_REENTER_VALUE = new BigNumber(888);
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const REENTRANCY_FLAG_MTX = 0x1;
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before(async () => {
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[owner, maker, sender, notSigner, ...signers] = await env.getAccountAddressesAsync();
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transformERC20Feature = await TestMetaTransactionsTransformERC20FeatureContract.deployFrom0xArtifactAsync(
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artifacts.TestMetaTransactionsTransformERC20Feature,
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env.provider,
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env.txDefaults,
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{},
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);
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nativeOrdersFeature = await TestMetaTransactionsNativeOrdersFeatureContract.deployFrom0xArtifactAsync(
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artifacts.TestMetaTransactionsNativeOrdersFeature,
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env.provider,
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env.txDefaults,
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{},
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);
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zeroEx = await fullMigrateAsync(owner, env.provider, env.txDefaults, {
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transformERC20: transformERC20Feature.address,
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nativeOrders: nativeOrdersFeature.address,
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});
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feature = new MetaTransactionsFeatureContract(
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zeroEx.address,
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env.provider,
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{ ...env.txDefaults, from: sender },
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abis,
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);
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feeToken = await TestMintableERC20TokenContract.deployFrom0xArtifactAsync(
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artifacts.TestMintableERC20Token,
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env.provider,
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env.txDefaults,
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{},
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);
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// Fund signers with fee tokens.
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await Promise.all(
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signers.map(async signer => {
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await feeToken.mint(signer, MAX_FEE_AMOUNT).awaitTransactionSuccessAsync();
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await feeToken.approve(zeroEx.address, MAX_FEE_AMOUNT).awaitTransactionSuccessAsync({ from: signer });
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}),
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);
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});
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function getRandomMetaTransaction(fields: Partial<MetaTransactionFields> = {}): MetaTransaction {
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return new MetaTransaction({
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signer: _.sampleSize(signers)[0],
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sender,
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minGasPrice: getRandomInteger('2', '1e9'),
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maxGasPrice: getRandomInteger('1e9', '100e9'),
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expirationTimeSeconds: new BigNumber(Math.floor(_.now() / 1000) + 360),
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salt: new BigNumber(hexUtils.random()),
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callData: hexUtils.random(4),
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value: getRandomInteger(1, '1e18'),
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feeToken: feeToken.address,
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feeAmount: getRandomInteger(1, MAX_FEE_AMOUNT),
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chainId: 1337,
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verifyingContract: zeroEx.address,
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...fields,
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});
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}
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describe('getMetaTransactionHash()', () => {
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it('generates the correct hash', async () => {
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const mtx = getRandomMetaTransaction();
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const expected = mtx.getHash();
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const actual = await feature.getMetaTransactionHash(mtx).callAsync();
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expect(actual).to.eq(expected);
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});
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});
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interface TransformERC20Args {
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inputToken: string;
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outputToken: string;
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inputTokenAmount: BigNumber;
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minOutputTokenAmount: BigNumber;
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transformations: Array<{ deploymentNonce: BigNumber; data: string }>;
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}
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function getRandomTransformERC20Args(fields: Partial<TransformERC20Args> = {}): TransformERC20Args {
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return {
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inputToken: randomAddress(),
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outputToken: randomAddress(),
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inputTokenAmount: getRandomInteger(1, '1e18'),
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minOutputTokenAmount: getRandomInteger(1, '1e18'),
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transformations: [{ deploymentNonce: new BigNumber(123), data: hexUtils.random() }],
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...fields,
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};
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}
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const RAW_TRANSFORM_SUCCESS_RESULT = hexUtils.leftPad(1337);
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const RAW_ORDER_SUCCESS_RESULT = hexUtils.leftPad(1337, 64);
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describe('executeMetaTransaction()', () => {
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it('can call NativeOrders.fillLimitOrder()', async () => {
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const order = getRandomLimitOrder({ maker });
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const fillAmount = new BigNumber(23456);
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const sig = await order.getSignatureWithProviderAsync(env.provider);
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const mtx = getRandomMetaTransaction({
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callData: nativeOrdersFeature.fillLimitOrder(order, sig, fillAmount).getABIEncodedTransactionData(),
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});
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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};
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const rawResult = await feature.executeMetaTransaction(mtx, signature).callAsync(callOpts);
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expect(rawResult).to.eq(RAW_ORDER_SUCCESS_RESULT);
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const receipt = await feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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verifyEventsFromLogs(
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receipt.logs,
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[
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{
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order: _.omit(order, ['verifyingContract', 'chainId']),
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sender: mtx.sender,
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taker: mtx.signer,
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takerTokenFillAmount: fillAmount,
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signatureType: sig.signatureType,
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v: sig.v,
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r: sig.r,
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s: sig.s,
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},
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],
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TestMetaTransactionsNativeOrdersFeatureEvents.FillLimitOrderCalled,
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);
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});
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it('can call NativeOrders.fillRfqOrder()', async () => {
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const order = getRandomRfqOrder({ maker });
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const sig = await order.getSignatureWithProviderAsync(env.provider);
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const fillAmount = new BigNumber(23456);
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const mtx = getRandomMetaTransaction({
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callData: nativeOrdersFeature.fillRfqOrder(order, sig, fillAmount).getABIEncodedTransactionData(),
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value: ZERO_AMOUNT,
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});
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: 0,
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};
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const rawResult = await feature.executeMetaTransaction(mtx, signature).callAsync(callOpts);
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expect(rawResult).to.eq(RAW_ORDER_SUCCESS_RESULT);
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const receipt = await feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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verifyEventsFromLogs(
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receipt.logs,
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[
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{
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order: _.omit(order, ['verifyingContract', 'chainId']),
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taker: mtx.signer,
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takerTokenFillAmount: fillAmount,
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signatureType: sig.signatureType,
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v: sig.v,
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r: sig.r,
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s: sig.s,
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},
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],
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TestMetaTransactionsNativeOrdersFeatureEvents.FillRfqOrderCalled,
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);
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});
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it('can call `TransformERC20.transformERC20()`', async () => {
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const args = getRandomTransformERC20Args();
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const mtx = getRandomMetaTransaction({
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callData: transformERC20Feature
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.transformERC20(
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args.inputToken,
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args.outputToken,
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args.inputTokenAmount,
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args.minOutputTokenAmount,
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args.transformations,
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)
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.getABIEncodedTransactionData(),
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});
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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};
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const rawResult = await feature.executeMetaTransaction(mtx, signature).callAsync(callOpts);
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expect(rawResult).to.eq(RAW_TRANSFORM_SUCCESS_RESULT);
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const receipt = await feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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verifyEventsFromLogs(
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receipt.logs,
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[
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{
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inputToken: args.inputToken,
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outputToken: args.outputToken,
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inputTokenAmount: args.inputTokenAmount,
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minOutputTokenAmount: args.minOutputTokenAmount,
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transformations: args.transformations,
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sender: zeroEx.address,
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value: mtx.value,
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taker: mtx.signer,
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},
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],
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TestMetaTransactionsTransformERC20FeatureEvents.TransformERC20Called,
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);
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});
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it('can call `TransformERC20.transformERC20()` with calldata', async () => {
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const args = getRandomTransformERC20Args();
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const callData = transformERC20Feature
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.transformERC20(
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args.inputToken,
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args.outputToken,
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args.inputTokenAmount,
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args.minOutputTokenAmount,
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args.transformations,
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)
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.getABIEncodedTransactionData();
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const mtx = getRandomMetaTransaction({ callData });
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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};
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const rawResult = await feature.executeMetaTransaction(mtx, signature).callAsync(callOpts);
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expect(rawResult).to.eq(RAW_TRANSFORM_SUCCESS_RESULT);
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const receipt = await feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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verifyEventsFromLogs(
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receipt.logs,
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[
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{
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inputToken: args.inputToken,
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outputToken: args.outputToken,
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inputTokenAmount: args.inputTokenAmount,
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minOutputTokenAmount: args.minOutputTokenAmount,
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transformations: args.transformations,
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sender: zeroEx.address,
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value: mtx.value,
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taker: mtx.signer,
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},
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],
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TestMetaTransactionsTransformERC20FeatureEvents.TransformERC20Called,
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);
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});
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it('can call with any sender if `sender == 0`', async () => {
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const args = getRandomTransformERC20Args();
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const mtx = getRandomMetaTransaction({
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sender: NULL_ADDRESS,
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callData: transformERC20Feature
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.transformERC20(
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args.inputToken,
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args.outputToken,
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args.inputTokenAmount,
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args.minOutputTokenAmount,
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args.transformations,
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)
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.getABIEncodedTransactionData(),
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});
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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from: randomAddress(),
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};
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const rawResult = await feature.executeMetaTransaction(mtx, signature).callAsync(callOpts);
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expect(rawResult).to.eq(RAW_TRANSFORM_SUCCESS_RESULT);
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});
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it('works without fee', async () => {
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const args = getRandomTransformERC20Args();
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const mtx = getRandomMetaTransaction({
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feeAmount: ZERO_AMOUNT,
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feeToken: randomAddress(),
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callData: transformERC20Feature
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.transformERC20(
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args.inputToken,
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args.outputToken,
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args.inputTokenAmount,
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args.minOutputTokenAmount,
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args.transformations,
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)
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.getABIEncodedTransactionData(),
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});
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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};
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const rawResult = await feature.executeMetaTransaction(mtx, signature).callAsync(callOpts);
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expect(rawResult).to.eq(RAW_TRANSFORM_SUCCESS_RESULT);
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});
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it('fails if the translated call fails', async () => {
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const args = getRandomTransformERC20Args();
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const mtx = getRandomMetaTransaction({
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value: new BigNumber(TRANSFORM_ERC20_FAILING_VALUE),
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callData: transformERC20Feature
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.transformERC20(
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args.inputToken,
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args.outputToken,
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args.inputTokenAmount,
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args.minOutputTokenAmount,
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args.transformations,
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)
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.getABIEncodedTransactionData(),
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});
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const mtxHash = mtx.getHash();
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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};
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const tx = feature.executeMetaTransaction(mtx, signature).callAsync(callOpts);
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const actualCallData = transformERC20Feature
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._transformERC20({
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taker: mtx.signer,
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inputToken: args.inputToken,
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outputToken: args.outputToken,
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inputTokenAmount: args.inputTokenAmount,
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minOutputTokenAmount: args.minOutputTokenAmount,
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transformations: args.transformations,
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useSelfBalance: false,
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recipient: mtx.signer,
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})
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.getABIEncodedTransactionData();
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return expect(tx).to.revertWith(
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new ZeroExRevertErrors.MetaTransactions.MetaTransactionCallFailedError(
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mtxHash,
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actualCallData,
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new StringRevertError('FAIL').encode(),
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),
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);
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});
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it('fails with unsupported function', async () => {
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const mtx = getRandomMetaTransaction({
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callData: transformERC20Feature.createTransformWallet().getABIEncodedTransactionData(),
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});
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const mtxHash = mtx.getHash();
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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};
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const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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return expect(tx).to.revertWith(
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new ZeroExRevertErrors.MetaTransactions.MetaTransactionUnsupportedFunctionError(
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mtxHash,
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hexUtils.slice(mtx.callData, 0, 4),
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),
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);
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});
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it('cannot execute the same mtx twice', async () => {
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const args = getRandomTransformERC20Args();
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const mtx = getRandomMetaTransaction({
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callData: transformERC20Feature
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.transformERC20(
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args.inputToken,
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args.outputToken,
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args.inputTokenAmount,
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args.minOutputTokenAmount,
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args.transformations,
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)
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.getABIEncodedTransactionData(),
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});
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const mtxHash = mtx.getHash();
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value,
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};
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const receipt = await feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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return expect(tx).to.revertWith(
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new ZeroExRevertErrors.MetaTransactions.MetaTransactionAlreadyExecutedError(
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mtxHash,
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receipt.blockNumber,
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),
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);
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});
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it('fails if not enough ETH provided', async () => {
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const mtx = getRandomMetaTransaction();
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const mtxHash = mtx.getHash();
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice,
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value: mtx.value.minus(1),
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};
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const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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return expect(tx).to.revertWith(
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new ZeroExRevertErrors.MetaTransactions.MetaTransactionInsufficientEthError(
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mtxHash,
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callOpts.value,
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mtx.value,
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),
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);
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});
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it('fails if gas price too low', async () => {
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const mtx = getRandomMetaTransaction();
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const mtxHash = mtx.getHash();
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.minGasPrice.minus(1),
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value: mtx.value,
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};
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const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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return expect(tx).to.revertWith(
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new ZeroExRevertErrors.MetaTransactions.MetaTransactionGasPriceError(
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mtxHash,
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callOpts.gasPrice,
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mtx.minGasPrice,
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mtx.maxGasPrice,
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),
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);
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});
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it('fails if gas price too high', async () => {
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const mtx = getRandomMetaTransaction();
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const mtxHash = mtx.getHash();
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.maxGasPrice.plus(1),
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value: mtx.value,
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};
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const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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return expect(tx).to.revertWith(
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new ZeroExRevertErrors.MetaTransactions.MetaTransactionGasPriceError(
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mtxHash,
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callOpts.gasPrice,
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mtx.minGasPrice,
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mtx.maxGasPrice,
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),
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);
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});
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it('fails if expired', async () => {
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const mtx = getRandomMetaTransaction({
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expirationTimeSeconds: new BigNumber(Math.floor(_.now() / 1000 - 60)),
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});
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const mtxHash = mtx.getHash();
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const signature = await mtx.getSignatureWithProviderAsync(env.provider);
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const callOpts = {
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gasPrice: mtx.maxGasPrice,
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value: mtx.value,
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};
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const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
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return expect(tx).to.revertWith(
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new ZeroExRevertErrors.MetaTransactions.MetaTransactionExpiredError(
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mtxHash,
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undefined,
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mtx.expirationTimeSeconds,
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),
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);
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});
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it('fails if wrong sender', async () => {
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const requiredSender = randomAddress();
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const mtx = getRandomMetaTransaction({
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sender: requiredSender,
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});
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const mtxHash = mtx.getHash();
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.MetaTransactions.MetaTransactionWrongSenderError(
|
|
mtxHash,
|
|
sender,
|
|
requiredSender,
|
|
),
|
|
);
|
|
});
|
|
|
|
it('fails if signature is wrong', async () => {
|
|
const mtx = getRandomMetaTransaction({ signer: signers[0] });
|
|
const mtxHash = mtx.getHash();
|
|
const signature = await mtx.clone({ signer: notSigner }).getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.SignatureValidator.SignatureValidationError(
|
|
ZeroExRevertErrors.SignatureValidator.SignatureValidationErrorCodes.WrongSigner,
|
|
mtxHash,
|
|
signers[0],
|
|
'0x',
|
|
),
|
|
);
|
|
});
|
|
|
|
it('cannot reenter `executeMetaTransaction()`', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
value: TRANSFORM_ERC20_REENTER_VALUE,
|
|
});
|
|
const mtxHash = mtx.getHash();
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.MetaTransactions.MetaTransactionCallFailedError(
|
|
mtxHash,
|
|
undefined,
|
|
new ZeroExRevertErrors.Common.IllegalReentrancyError(
|
|
feature.getSelector('executeMetaTransaction'),
|
|
REENTRANCY_FLAG_MTX,
|
|
).encode(),
|
|
),
|
|
);
|
|
});
|
|
|
|
it('cannot reenter `batchExecuteMetaTransactions()`', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
value: TRANSFORM_ERC20_BATCH_REENTER_VALUE,
|
|
});
|
|
const mtxHash = mtx.getHash();
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.MetaTransactions.MetaTransactionCallFailedError(
|
|
mtxHash,
|
|
undefined,
|
|
new ZeroExRevertErrors.Common.IllegalReentrancyError(
|
|
feature.getSelector('batchExecuteMetaTransactions'),
|
|
REENTRANCY_FLAG_MTX,
|
|
).encode(),
|
|
),
|
|
);
|
|
});
|
|
|
|
it('cannot reduce initial ETH balance', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
value: TRANSFORM_ERC20_ONE_WEI_VALUE,
|
|
});
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
// Send pre-existing ETH to the EP.
|
|
await env.web3Wrapper.awaitTransactionSuccessAsync(
|
|
await env.web3Wrapper.sendTransactionAsync({
|
|
from: owner,
|
|
to: zeroEx.address,
|
|
value: new BigNumber(1),
|
|
}),
|
|
);
|
|
const tx = feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith('MetaTransactionsFeature/ETH_LEAK');
|
|
});
|
|
});
|
|
|
|
describe('batchExecuteMetaTransactions()', () => {
|
|
it('can execute multiple transactions', async () => {
|
|
const mtxs = _.times(2, i => {
|
|
const args = getRandomTransformERC20Args();
|
|
return getRandomMetaTransaction({
|
|
signer: signers[i],
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
});
|
|
});
|
|
const signatures = await Promise.all(
|
|
mtxs.map(async mtx => mtx.getSignatureWithProviderAsync(env.provider)),
|
|
);
|
|
const callOpts = {
|
|
gasPrice: BigNumber.max(...mtxs.map(mtx => mtx.minGasPrice)),
|
|
value: BigNumber.sum(...mtxs.map(mtx => mtx.value)),
|
|
};
|
|
const rawResults = await feature.batchExecuteMetaTransactions(mtxs, signatures).callAsync(callOpts);
|
|
expect(rawResults).to.eql(mtxs.map(() => RAW_TRANSFORM_SUCCESS_RESULT));
|
|
});
|
|
|
|
it('cannot execute the same transaction twice', async () => {
|
|
const mtx = (() => {
|
|
const args = getRandomTransformERC20Args();
|
|
return getRandomMetaTransaction({
|
|
signer: _.sampleSize(signers, 1)[0],
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
});
|
|
})();
|
|
const mtxHash = mtx.getHash();
|
|
const mtxs = _.times(2, () => mtx);
|
|
const signatures = await Promise.all(mtxs.map(async m => m.getSignatureWithProviderAsync(env.provider)));
|
|
const callOpts = {
|
|
gasPrice: BigNumber.max(...mtxs.map(m => m.minGasPrice)),
|
|
value: BigNumber.sum(...mtxs.map(m => m.value)),
|
|
};
|
|
const block = await env.web3Wrapper.getBlockNumberAsync();
|
|
const tx = feature.batchExecuteMetaTransactions(mtxs, signatures).callAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.MetaTransactions.MetaTransactionAlreadyExecutedError(mtxHash, block),
|
|
);
|
|
});
|
|
|
|
it('fails if a meta-transaction fails', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
value: new BigNumber(TRANSFORM_ERC20_FAILING_VALUE),
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
});
|
|
const mtxHash = mtx.getHash();
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.minGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const tx = feature.batchExecuteMetaTransactions([mtx], [signature]).callAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.MetaTransactions.MetaTransactionCallFailedError(
|
|
mtxHash,
|
|
undefined,
|
|
new StringRevertError('FAIL').encode(),
|
|
),
|
|
);
|
|
});
|
|
|
|
it('cannot reenter `executeMetaTransaction()`', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
value: TRANSFORM_ERC20_REENTER_VALUE,
|
|
});
|
|
const mtxHash = mtx.getHash();
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const tx = feature.batchExecuteMetaTransactions([mtx], [signature]).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.MetaTransactions.MetaTransactionCallFailedError(
|
|
mtxHash,
|
|
undefined,
|
|
new ZeroExRevertErrors.Common.IllegalReentrancyError(
|
|
feature.getSelector('executeMetaTransaction'),
|
|
REENTRANCY_FLAG_MTX,
|
|
).encode(),
|
|
),
|
|
);
|
|
});
|
|
|
|
it('cannot reenter `batchExecuteMetaTransactions()`', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
value: TRANSFORM_ERC20_BATCH_REENTER_VALUE,
|
|
});
|
|
const mtxHash = mtx.getHash();
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const tx = feature.batchExecuteMetaTransactions([mtx], [signature]).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith(
|
|
new ZeroExRevertErrors.MetaTransactions.MetaTransactionCallFailedError(
|
|
mtxHash,
|
|
undefined,
|
|
new ZeroExRevertErrors.Common.IllegalReentrancyError(
|
|
feature.getSelector('batchExecuteMetaTransactions'),
|
|
REENTRANCY_FLAG_MTX,
|
|
).encode(),
|
|
),
|
|
);
|
|
});
|
|
|
|
it('cannot reduce initial ETH balance', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
value: TRANSFORM_ERC20_ONE_WEI_VALUE,
|
|
});
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.maxGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
// Send pre-existing ETH to the EP.
|
|
await env.web3Wrapper.awaitTransactionSuccessAsync(
|
|
await env.web3Wrapper.sendTransactionAsync({
|
|
from: owner,
|
|
to: zeroEx.address,
|
|
value: new BigNumber(1),
|
|
}),
|
|
);
|
|
const tx = feature.batchExecuteMetaTransactions([mtx], [signature]).awaitTransactionSuccessAsync(callOpts);
|
|
return expect(tx).to.revertWith('MetaTransactionsFeature/ETH_LEAK');
|
|
});
|
|
});
|
|
|
|
describe('getMetaTransactionExecutedBlock()', () => {
|
|
it('returns zero for an unexecuted mtx', async () => {
|
|
const mtx = getRandomMetaTransaction();
|
|
const block = await feature.getMetaTransactionExecutedBlock(mtx).callAsync();
|
|
expect(block).to.bignumber.eq(0);
|
|
});
|
|
|
|
it('returns the block it was executed in', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
});
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.minGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const receipt = await feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
|
|
const block = await feature.getMetaTransactionExecutedBlock(mtx).callAsync();
|
|
expect(block).to.bignumber.eq(receipt.blockNumber);
|
|
});
|
|
});
|
|
|
|
describe('getMetaTransactionHashExecutedBlock()', () => {
|
|
it('returns zero for an unexecuted mtx', async () => {
|
|
const mtx = getRandomMetaTransaction();
|
|
const mtxHash = mtx.getHash();
|
|
const block = await feature.getMetaTransactionHashExecutedBlock(mtxHash).callAsync();
|
|
expect(block).to.bignumber.eq(0);
|
|
});
|
|
|
|
it('returns the block it was executed in', async () => {
|
|
const args = getRandomTransformERC20Args();
|
|
const mtx = getRandomMetaTransaction({
|
|
callData: transformERC20Feature
|
|
.transformERC20(
|
|
args.inputToken,
|
|
args.outputToken,
|
|
args.inputTokenAmount,
|
|
args.minOutputTokenAmount,
|
|
args.transformations,
|
|
)
|
|
.getABIEncodedTransactionData(),
|
|
});
|
|
const signature = await mtx.getSignatureWithProviderAsync(env.provider);
|
|
const callOpts = {
|
|
gasPrice: mtx.minGasPrice,
|
|
value: mtx.value,
|
|
};
|
|
const receipt = await feature.executeMetaTransaction(mtx, signature).awaitTransactionSuccessAsync(callOpts);
|
|
const mtxHash = mtx.getHash();
|
|
const block = await feature.getMetaTransactionHashExecutedBlock(mtxHash).callAsync();
|
|
expect(block).to.bignumber.eq(receipt.blockNumber);
|
|
});
|
|
});
|
|
});
|