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import { BlockchainLifecycle } from '@0xproject/dev-utils';
import { assetProxyUtils, orderHashUtils } from '@0xproject/order-utils';
import { SignedOrder } from '@0xproject/types';
import * as chai from 'chai';
import ethUtil = require('ethereumjs-util');
import { TestSignatureValidatorContract } from '../../src/contract_wrappers/generated/test_signature_validator';
import { addressUtils } from '../../src/utils/address_utils';
import { artifacts } from '../../src/utils/artifacts';
import { chaiSetup } from '../../src/utils/chai_setup';
import { constants } from '../../src/utils/constants';
import { OrderFactory } from '../../src/utils/order_factory';
import { provider, txDefaults, web3Wrapper } from '../../src/utils/web3_wrapper';
chaiSetup.configure();
const expect = chai.expect;
const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
describe('MixinSignatureValidator', () => {
let signedOrder: SignedOrder;
let orderFactory: OrderFactory;
let signatureValidator: TestSignatureValidatorContract;
before(async () => {
await blockchainLifecycle.startAsync();
});
after(async () => {
await blockchainLifecycle.revertAsync();
});
before(async () => {
const accounts = await web3Wrapper.getAvailableAddressesAsync();
const makerAddress = accounts[0];
signatureValidator = await TestSignatureValidatorContract.deployFrom0xArtifactAsync(
artifacts.TestSignatureValidator,
provider,
txDefaults,
);
const defaultOrderParams = {
...constants.STATIC_ORDER_PARAMS,
exchangeAddress: signatureValidator.address,
makerAddress,
feeRecipientAddress: addressUtils.generatePseudoRandomAddress(),
makerAssetData: assetProxyUtils.encodeERC20ProxyData(addressUtils.generatePseudoRandomAddress()),
takerAssetData: assetProxyUtils.encodeERC20ProxyData(addressUtils.generatePseudoRandomAddress()),
};
const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)];
orderFactory = new OrderFactory(privateKey, defaultOrderParams);
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
});
afterEach(async () => {
await blockchainLifecycle.revertAsync();
});
describe('isValidSignature', () => {
beforeEach(async () => {
signedOrder = orderFactory.newSignedOrder();
});
it('should return true with a valid signature', async () => {
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync(
orderHashHex,
signedOrder.makerAddress,
signedOrder.signature,
);
expect(isValidSignature).to.be.true();
});
it('should return false with an invalid signature', async () => {
const v = ethUtil.toBuffer(signedOrder.signature.slice(0, 4));
const invalidR = ethUtil.sha3('invalidR');
const invalidS = ethUtil.sha3('invalidS');
const signatureType = ethUtil.toBuffer(`0x${signedOrder.signature.slice(-2)}`);
const invalidSigBuff = Buffer.concat([v, invalidR, invalidS, signatureType]);
const invalidSigHex = `0x${invalidSigBuff.toString('hex')}`;
signedOrder.signature = invalidSigHex;
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync(
orderHashHex,
signedOrder.makerAddress,
signedOrder.signature,
);
expect(isValidSignature).to.be.false();
});
});
});
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