187 lines
9.0 KiB
TypeScript
187 lines
9.0 KiB
TypeScript
import {
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addressUtils,
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chaiSetup,
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constants,
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OrderFactory,
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provider,
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txDefaults,
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web3Wrapper,
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} from '@0x/contracts-test-utils';
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import { BlockchainLifecycle } from '@0x/dev-utils';
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import { assetDataUtils, orderHashUtils } from '@0x/order-utils';
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import { constants as orderConstants } from '@0x/order-utils/lib/src/constants';
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import { SignedOrder } from '@0x/types';
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import { BigNumber, providerUtils } from '@0x/utils';
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import * as chai from 'chai';
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import * as ethUtil from 'ethereumjs-util';
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import { TestLibsContract } from '../generated-wrappers/test_libs';
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import { artifacts } from '../src/artifacts';
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import { stringifySchema } from './utils';
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chaiSetup.configure();
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const expect = chai.expect;
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const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
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describe('Exchange libs', () => {
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let chainId: number;
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let signedOrder: SignedOrder;
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let orderFactory: OrderFactory;
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let libs: TestLibsContract;
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let libsAlternateChain: TestLibsContract;
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before(async () => {
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await blockchainLifecycle.startAsync();
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});
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after(async () => {
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await blockchainLifecycle.revertAsync();
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});
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before(async () => {
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const accounts = await web3Wrapper.getAvailableAddressesAsync();
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const makerAddress = accounts[0];
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chainId = await providerUtils.getChainIdAsync(provider);
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libs = await TestLibsContract.deployFrom0xArtifactAsync(
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artifacts.TestLibs,
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provider,
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txDefaults,
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new BigNumber(chainId),
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);
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// Deploy a version with a different chain ID.
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const alternateChainId = chainId + 1;
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libsAlternateChain = await TestLibsContract.deployFrom0xArtifactAsync(
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artifacts.TestLibs,
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provider,
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txDefaults,
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new BigNumber(alternateChainId),
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);
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const defaultOrderParams = {
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...constants.STATIC_ORDER_PARAMS,
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exchangeAddress: libs.address,
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chainId,
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makerAddress,
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feeRecipientAddress: addressUtils.generatePseudoRandomAddress(),
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makerAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()),
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takerAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()),
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};
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const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)];
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orderFactory = new OrderFactory(privateKey, defaultOrderParams);
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});
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beforeEach(async () => {
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await blockchainLifecycle.startAsync();
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});
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afterEach(async () => {
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await blockchainLifecycle.revertAsync();
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});
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// Note(albrow): These tests are designed to be supplemental to the
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// combinatorial tests in test/exchange/internal. They test specific edge
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// cases that are not covered by the combinatorial tests.
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describe('LibMath', () => {
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describe('isRoundingError', () => {
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it('should return true if there is a rounding error of 0.1%', async () => {
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const numerator = new BigNumber(20);
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const denominator = new BigNumber(999);
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const target = new BigNumber(50);
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// rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
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const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
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expect(isRoundingError).to.be.true();
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});
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it('should return false if there is a rounding of 0.09%', async () => {
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const numerator = new BigNumber(20);
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const denominator = new BigNumber(9991);
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const target = new BigNumber(500);
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// rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
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const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
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expect(isRoundingError).to.be.false();
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});
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it('should return true if there is a rounding error of 0.11%', async () => {
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const numerator = new BigNumber(20);
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const denominator = new BigNumber(9989);
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const target = new BigNumber(500);
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// rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
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const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
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expect(isRoundingError).to.be.true();
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});
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});
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describe('isRoundingErrorCeil', () => {
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it('should return true if there is a rounding error of 0.1%', async () => {
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const numerator = new BigNumber(20);
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const denominator = new BigNumber(1001);
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const target = new BigNumber(50);
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// rounding error = (ceil(20*50/1001) - (20*50/1001)) / (20*50/1001) = 0.1%
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const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
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expect(isRoundingError).to.be.true();
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});
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it('should return false if there is a rounding of 0.09%', async () => {
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const numerator = new BigNumber(20);
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const denominator = new BigNumber(10009);
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const target = new BigNumber(500);
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// rounding error = (ceil(20*500/10009) - (20*500/10009)) / (20*500/10009) = 0.09%
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const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
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expect(isRoundingError).to.be.false();
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});
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it('should return true if there is a rounding error of 0.11%', async () => {
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const numerator = new BigNumber(20);
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const denominator = new BigNumber(10011);
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const target = new BigNumber(500);
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// rounding error = (ceil(20*500/10011) - (20*500/10011)) / (20*500/10011) = 0.11%
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const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
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expect(isRoundingError).to.be.true();
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});
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});
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});
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describe('LibOrder', () => {
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describe('getOrderHash', () => {
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it('should output the correct orderHash', async () => {
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signedOrder = await orderFactory.newSignedOrderAsync();
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const orderHashHex = await libs.publicGetOrderHash.callAsync(signedOrder);
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expect(orderHashUtils.getOrderHashHex(signedOrder)).to.be.equal(orderHashHex);
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});
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it('orderHash should differ if chainId is different', async () => {
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signedOrder = await orderFactory.newSignedOrderAsync();
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const orderHashHex1 = await libsAlternateChain.publicGetOrderHash.callAsync(signedOrder);
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const orderHashHex2 = await libs.publicGetOrderHash.callAsync(signedOrder);
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expect(orderHashHex1).to.be.not.equal(orderHashHex2);
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});
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});
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});
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describe('LibEIP712', () => {
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it('should return the correct domain separator schema hash', async () => {
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const schema = stringifySchema(orderConstants.DEFAULT_DOMAIN_SCHEMA);
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const expectedSchemaHash = ethUtil.bufferToHex(ethUtil.sha3(Buffer.from(schema)));
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const actualSchemaHash = await libs.getDomainSeparatorSchemaHash.callAsync();
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expect(actualSchemaHash).to.be.equal(expectedSchemaHash);
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});
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it('should return the correct order schema hash', async () => {
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const schema = stringifySchema(orderConstants.EXCHANGE_ORDER_SCHEMA);
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const expectedSchemaHash = ethUtil.bufferToHex(ethUtil.sha3(Buffer.from(schema)));
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const actualSchemaHash = await libs.getOrderSchemaHash.callAsync();
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expect(actualSchemaHash).to.be.equal(expectedSchemaHash);
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});
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it('should return the correct domain separator', async () => {
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const schema = stringifySchema(orderConstants.DEFAULT_DOMAIN_SCHEMA);
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const schemaHash = ethUtil.sha3(Buffer.from(schema));
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const payload = Buffer.concat([
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schemaHash,
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ethUtil.sha3(Buffer.from(orderConstants.EXCHANGE_DOMAIN_NAME)),
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ethUtil.sha3(Buffer.from(orderConstants.EXCHANGE_DOMAIN_VERSION)),
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ethUtil.setLengthLeft(ethUtil.toBuffer(chainId), 32),
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ethUtil.setLengthLeft(ethUtil.toBuffer(libs.address), 32),
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]);
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const expectedDomain = ethUtil.bufferToHex(ethUtil.sha3(payload));
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const actualDomain = await libs.getDomainSeparator.callAsync();
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expect(actualDomain).to.be.equal(expectedDomain);
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});
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it('should return a different domain separator if chainId is different', async () => {
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const domain1 = await libsAlternateChain.getDomainSeparator.callAsync();
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const domain2 = await libs.getDomainSeparator.callAsync();
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expect(domain1).to.be.not.equal(domain2);
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});
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});
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});
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