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(); }); }); });