import * as _ from 'lodash'; import * as chai from 'chai'; import {chaiSetup} from './utils/chai_setup'; import 'mocha'; import * as BigNumber from 'bignumber.js'; import * as Sinon from 'sinon'; import {ZeroEx} from '../src/0x.js'; import {constants} from './utils/constants'; import {web3Factory} from './utils/web3_factory'; import {Order} from '../src/types'; chaiSetup.configure(); const expect = chai.expect; describe('ZeroEx library', () => { describe('#setProvider', () => { it('overrides provider in nested web3s and invalidates contractInstances', async () => { const web3 = web3Factory.create(); const zeroEx = new ZeroEx(web3); // Instantiate the contract instances with the current provider await (zeroEx.exchange as any).getExchangeContractAsync(); await (zeroEx.tokenRegistry as any).getTokenRegistryContractAsync(); expect((zeroEx.exchange as any).exchangeContractIfExists).to.not.be.undefined(); expect((zeroEx.tokenRegistry as any).tokenRegistryContractIfExists).to.not.be.undefined(); const newProvider = web3Factory.getRpcProvider(); // Add property to newProvider so that we can differentiate it from old provider (newProvider as any).zeroExTestId = 1; await zeroEx.setProviderAsync(newProvider); // Check that contractInstances with old provider are removed after provider update expect((zeroEx.exchange as any).exchangeContractIfExists).to.be.undefined(); expect((zeroEx.tokenRegistry as any).tokenRegistryContractIfExists).to.be.undefined(); // Check that all nested web3 instances return the updated provider const nestedWeb3WrapperProvider = (zeroEx as any).web3Wrapper.getCurrentProvider(); expect((nestedWeb3WrapperProvider as any).zeroExTestId).to.be.a('number'); const exchangeWeb3WrapperProvider = zeroEx.exchange.web3Wrapper.getCurrentProvider(); expect((exchangeWeb3WrapperProvider as any).zeroExTestId).to.be.a('number'); const tokenRegistryWeb3WrapperProvider = zeroEx.tokenRegistry.web3Wrapper.getCurrentProvider(); expect((tokenRegistryWeb3WrapperProvider as any).zeroExTestId).to.be.a('number'); }); }); describe('#isValidSignature', () => { // This test data was borrowed from the JSON RPC documentation // Source: https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign const data = '0xdeadbeaf'; const signature = { v: 27, r: '0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a1', s: '0x2d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee', }; const address = '0x9b2055d370f73ec7d8a03e965129118dc8f5bf83'; describe('should throw if passed a malformed signature', () => { it('malformed v', () => { const malformedSignature = { v: 34, r: signature.r, s: signature.s, }; expect(() => ZeroEx.isValidSignature(data, malformedSignature, address)).to.throw(); }); it('r lacks 0x prefix', () => { const malformedR = signature.r.replace('0x', ''); const malformedSignature = { v: signature.v, r: malformedR, s: signature.s, }; expect(() => ZeroEx.isValidSignature(data, malformedSignature, address)).to.throw(); }); it('r is too short', () => { const malformedR = signature.r.substr(10); const malformedSignature = { v: signature.v, r: malformedR, s: signature.s.replace('0', 'z'), }; expect(() => ZeroEx.isValidSignature(data, malformedSignature, address)).to.throw(); }); it('s is not hex', () => { const malformedS = signature.s.replace('0', 'z'); const malformedSignature = { v: signature.v, r: signature.r, s: malformedS, }; expect(() => ZeroEx.isValidSignature(data, malformedSignature, address)).to.throw(); }); }); it('should return false if the data doesn\'t pertain to the signature & address', () => { const isValid = ZeroEx.isValidSignature('0x0', signature, address); expect(isValid).to.be.false(); }); it('should return false if the address doesn\'t pertain to the signature & data', () => { const validUnrelatedAddress = '0x8b0292B11a196601eD2ce54B665CaFEca0347D42'; const isValid = ZeroEx.isValidSignature(data, signature, validUnrelatedAddress); expect(isValid).to.be.false(); }); it('should return false if the signature doesn\'t pertain to the data & address', () => { const wrongSignature = _.assign({}, signature, {v: 28}); const isValid = ZeroEx.isValidSignature(data, wrongSignature, address); expect(isValid).to.be.false(); }); it('should return true if the signature does pertain to the data & address', () => { const isValid = ZeroEx.isValidSignature(data, signature, address); expect(isValid).to.be.true(); }); }); describe('#generateSalt', () => { it('generates different salts', () => { const equal = ZeroEx.generatePseudoRandomSalt().eq(ZeroEx.generatePseudoRandomSalt()); expect(equal).to.be.false(); }); it('generates salt in range [0..2^256)', () => { const salt = ZeroEx.generatePseudoRandomSalt(); expect(salt.greaterThanOrEqualTo(0)).to.be.true(); const twoPow256 = new BigNumber(2).pow(256); expect(salt.lessThan(twoPow256)).to.be.true(); }); }); describe('#isValidOrderHash', () => { it('returns false if the value is not a hex string', () => { const isValid = ZeroEx.isValidOrderHash('not a hex'); expect(isValid).to.be.false(); }); it('returns false if the length is wrong', () => { const isValid = ZeroEx.isValidOrderHash('0xdeadbeef'); expect(isValid).to.be.false(); }); it('returns true if order hash is correct', () => { const isValid = ZeroEx.isValidOrderHash('0x' + Array(65).join('0')); expect(isValid).to.be.true(); }); }); describe('#toUnitAmount', () => { it('Should return the expected unit amount for the decimals passed in', () => { const baseUnitAmount = new BigNumber(1000000000); const decimals = 6; const unitAmount = ZeroEx.toUnitAmount(baseUnitAmount, decimals); const expectedUnitAmount = new BigNumber(1000); expect(unitAmount).to.be.bignumber.equal(expectedUnitAmount); }); }); describe('#toBaseUnitAmount', () => { it('Should return the expected base unit amount for the decimals passed in', () => { const unitAmount = new BigNumber(1000); const decimals = 6; const baseUnitAmount = ZeroEx.toBaseUnitAmount(unitAmount, decimals); const expectedUnitAmount = new BigNumber(1000000000); expect(baseUnitAmount).to.be.bignumber.equal(expectedUnitAmount); }); }); describe('#getOrderHashAsync', () => { const exchangeContractAddress = constants.NULL_ADDRESS; const expectedOrderHash = '0x103a5e97dab5dbeb8f385636f86a7d1e458a7ccbe1bd194727f0b2f85ab116c7'; const order: Order = { maker: constants.NULL_ADDRESS, taker: constants.NULL_ADDRESS, feeRecipient: constants.NULL_ADDRESS, makerTokenAddress: constants.NULL_ADDRESS, takerTokenAddress: constants.NULL_ADDRESS, salt: new BigNumber(0), makerFee: new BigNumber(0), takerFee: new BigNumber(0), makerTokenAmount: new BigNumber(0), takerTokenAmount: new BigNumber(0), expirationUnixTimestampSec: new BigNumber(0), }; let stubs: Sinon.SinonStub[] = []; afterEach(() => { // clean up any stubs after the test has completed _.each(stubs, s => s.restore()); stubs = []; }); it('calculates the order hash', async () => { const web3 = web3Factory.create(); const zeroEx = new ZeroEx(web3); stubs = [ Sinon.stub((zeroEx as any), 'getExchangeAddressAsync') .returns(Promise.resolve(exchangeContractAddress)), ]; const orderHash = await zeroEx.getOrderHashHexAsync(order); expect(orderHash).to.be.equal(expectedOrderHash); }); }); describe('#signOrderHashAsync', () => { let stubs: Sinon.SinonStub[] = []; afterEach(() => { // clean up any stubs after the test has completed _.each(stubs, s => s.restore()); stubs = []; }); it ('Should return the correct ECSignature on TestPRC nodeVersion', async () => { const orderHash = '0x6927e990021d23b1eb7b8789f6a6feaf98fe104bb0cf8259421b79f9a34222b0'; const expectedECSignature = { v: 27, r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33', s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254', }; const web3 = web3Factory.create(); const zeroEx = new ZeroEx(web3); const ecSignature = await zeroEx.signOrderHashAsync(orderHash); expect(ecSignature).to.deep.equal(expectedECSignature); }); it ('should return the correct ECSignature on Parity > V1.6.6', async () => { const newParityNodeVersion = 'Parity//v1.6.7-beta-e128418-20170518/x86_64-macos/rustc1.17.0'; const orderHash = '0x34decbedc118904df65f379a175bb39ca18209d6ce41d5ed549d54e6e0a95004'; // tslint:disable-next-line: max-line-length const signature = '0x22109d11d79cb8bf96ed88625e1cd9558800c4073332a9a02857499883ee5ce3050aa3cc1f2c435e67e114cdce54b9527b4f50548342401bc5d2b77adbdacb021b'; const expectedECSignature = { v: 27, r: '0x22109d11d79cb8bf96ed88625e1cd9558800c4073332a9a02857499883ee5ce3', s: '0x050aa3cc1f2c435e67e114cdce54b9527b4f50548342401bc5d2b77adbdacb02', }; const web3 = web3Factory.create(); const zeroEx = new ZeroEx(web3); stubs = [ Sinon.stub((zeroEx as any).web3Wrapper, 'getNodeVersionAsync') .returns(Promise.resolve(newParityNodeVersion)), Sinon.stub((zeroEx as any).web3Wrapper, 'signTransactionAsync') .returns(Promise.resolve(signature)), Sinon.stub(ZeroEx, 'isValidSignature').returns(true), ]; const ecSignature = await zeroEx.signOrderHashAsync(orderHash); expect(ecSignature).to.deep.equal(expectedECSignature); }); it ('should return the correct ECSignature on Parity < V1.6.6', async () => { const newParityNodeVersion = 'Parity//v1.6.6-beta-8c6e3f3-20170411/x86_64-macos/rustc1.16.0'; const orderHash = '0xc793e33ffded933b76f2f48d9aa3339fc090399d5e7f5dec8d3660f5480793f7'; // tslint:disable-next-line: max-line-length const signature = '0x1bc80bedc6756722672753413efdd749b5adbd4fd552595f59c13427407ee9aee02dea66f25a608bbae457e020fb6decb763deb8b7192abab624997242da248960'; const expectedECSignature = { v: 27, r: '0xc80bedc6756722672753413efdd749b5adbd4fd552595f59c13427407ee9aee0', s: '0x2dea66f25a608bbae457e020fb6decb763deb8b7192abab624997242da248960', }; const web3 = web3Factory.create(); const zeroEx = new ZeroEx(web3); stubs = [ Sinon.stub((zeroEx as any).web3Wrapper, 'getNodeVersionAsync') .returns(Promise.resolve(newParityNodeVersion)), Sinon.stub((zeroEx as any).web3Wrapper, 'signTransactionAsync') .returns(Promise.resolve(signature)), Sinon.stub(ZeroEx, 'isValidSignature').returns(true), ]; const ecSignature = await zeroEx.signOrderHashAsync(orderHash); expect(ecSignature).to.deep.equal(expectedECSignature); }); }); });