2019-07-23 15:51:43 -07:00

213 lines
11 KiB
TypeScript

import { addressUtils, chaiSetup, constants, provider, txDefaults, web3Wrapper } from '@0x/contracts-test-utils';
import { BlockchainLifecycle } from '@0x/dev-utils';
import { assetDataUtils, orderHashUtils, transactionHashUtils } from '@0x/order-utils';
import { constants as orderConstants } from '@0x/order-utils/lib/src/constants';
import { Order, ZeroExTransaction } from '@0x/types';
import { BigNumber, providerUtils } from '@0x/utils';
import * as chai from 'chai';
import * as ethUtil from 'ethereumjs-util';
import { TestLibsContract } from '../src';
import { artifacts } from '../src/artifacts';
import { stringifySchema } from './utils';
chaiSetup.configure();
const expect = chai.expect;
const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
describe('Exchange libs', () => {
let chainId: number;
let order: Order;
let transaction: ZeroExTransaction;
let libs: TestLibsContract;
let libsAlternateChain: TestLibsContract;
before(async () => {
await blockchainLifecycle.startAsync();
});
after(async () => {
await blockchainLifecycle.revertAsync();
});
before(async () => {
const accounts = await web3Wrapper.getAvailableAddressesAsync();
const [makerAddress, takerAddress, senderAddress, feeRecipientAddress, signerAddress] = accounts.slice(0, 5);
chainId = await providerUtils.getChainIdAsync(provider);
libs = await TestLibsContract.deployFrom0xArtifactAsync(
artifacts.TestLibs,
provider,
txDefaults,
new BigNumber(chainId),
);
// Deploy a version with a different chain ID.
const alternateChainId = chainId + 1;
libsAlternateChain = await TestLibsContract.deployFrom0xArtifactAsync(
artifacts.TestLibs,
provider,
txDefaults,
new BigNumber(alternateChainId),
);
const domain = {
verifyingContractAddress: libs.address,
chainId,
};
order = {
...constants.STATIC_ORDER_PARAMS,
makerAddress,
takerAddress,
senderAddress,
feeRecipientAddress,
makerAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()),
takerAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()),
makerFeeAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()),
takerFeeAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()),
salt: new BigNumber(0),
expirationTimeSeconds: new BigNumber(0),
domain,
};
transaction = {
signerAddress,
salt: new BigNumber(0),
expirationTimeSeconds: new BigNumber(0),
data: constants.NULL_BYTES,
domain,
};
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
});
afterEach(async () => {
await blockchainLifecycle.revertAsync();
});
// Note(albrow): These tests are designed to be supplemental to the
// combinatorial tests in test/exchange/internal. They test specific edge
// cases that are not covered by the combinatorial tests.
describe('LibMath', () => {
describe('isRoundingError', () => {
it('should return true if there is a rounding error of 0.1%', async () => {
const numerator = new BigNumber(20);
const denominator = new BigNumber(999);
const target = new BigNumber(50);
// rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
const isRoundingError = await libs.isRoundingErrorFloor.callAsync(numerator, denominator, target);
expect(isRoundingError).to.be.true();
});
it('should return false if there is a rounding of 0.09%', async () => {
const numerator = new BigNumber(20);
const denominator = new BigNumber(9991);
const target = new BigNumber(500);
// rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
const isRoundingError = await libs.isRoundingErrorFloor.callAsync(numerator, denominator, target);
expect(isRoundingError).to.be.false();
});
it('should return true if there is a rounding error of 0.11%', async () => {
const numerator = new BigNumber(20);
const denominator = new BigNumber(9989);
const target = new BigNumber(500);
// rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
const isRoundingError = await libs.isRoundingErrorFloor.callAsync(numerator, denominator, target);
expect(isRoundingError).to.be.true();
});
});
describe('isRoundingErrorCeil', () => {
it('should return true if there is a rounding error of 0.1%', async () => {
const numerator = new BigNumber(20);
const denominator = new BigNumber(1001);
const target = new BigNumber(50);
// rounding error = (ceil(20*50/1001) - (20*50/1001)) / (20*50/1001) = 0.1%
const isRoundingError = await libs.isRoundingErrorCeil.callAsync(numerator, denominator, target);
expect(isRoundingError).to.be.true();
});
it('should return false if there is a rounding of 0.09%', async () => {
const numerator = new BigNumber(20);
const denominator = new BigNumber(10009);
const target = new BigNumber(500);
// rounding error = (ceil(20*500/10009) - (20*500/10009)) / (20*500/10009) = 0.09%
const isRoundingError = await libs.isRoundingErrorCeil.callAsync(numerator, denominator, target);
expect(isRoundingError).to.be.false();
});
it('should return true if there is a rounding error of 0.11%', async () => {
const numerator = new BigNumber(20);
const denominator = new BigNumber(10011);
const target = new BigNumber(500);
// rounding error = (ceil(20*500/10011) - (20*500/10011)) / (20*500/10011) = 0.11%
const isRoundingError = await libs.isRoundingErrorCeil.callAsync(numerator, denominator, target);
expect(isRoundingError).to.be.true();
});
});
});
describe('LibOrder', () => {
describe('getOrderHash', () => {
it('should return the correct orderHash', async () => {
const orderHashHex = await libs.getOrderHash.callAsync(order);
expect(orderHashUtils.getOrderHashHex(order)).to.be.equal(orderHashHex);
});
it('orderHash should differ if chainId is different', async () => {
const orderHashHex1 = await libsAlternateChain.getOrderHash.callAsync(order);
const orderHashHex2 = await libs.getOrderHash.callAsync(order);
expect(orderHashHex1).to.be.not.equal(orderHashHex2);
});
});
});
describe('LibZeroExTransaction', () => {
describe('EIP712ZeroExTransactionSchemaHash', () => {
it('should return the correct schema hash', async () => {
const schemaHash = await libs.EIP712_ZEROEX_TRANSACTION_SCHEMA_HASH.callAsync();
const schemaString =
'ZeroExTransaction(uint256 salt,uint256 expirationTimeSeconds,address signerAddress,bytes data)';
const expectedSchemaHash = ethUtil.addHexPrefix(ethUtil.bufferToHex(ethUtil.sha3(schemaString)));
expect(schemaHash).to.equal(expectedSchemaHash);
});
});
describe('getTransactionHash', () => {
it('should return the correct transactionHash', async () => {
const transactionHash = await libs.getTransactionHash.callAsync(transaction);
const expectedTransactionHash = transactionHashUtils.getTransactionHashHex(transaction);
expect(transactionHash).to.equal(expectedTransactionHash);
});
it('transactionHash should differ if chainId is different', async () => {
const transactionHash1 = await libsAlternateChain.getTransactionHash.callAsync(transaction);
const transactionHash2 = await libs.getTransactionHash.callAsync(transaction);
expect(transactionHash1).to.not.equal(transactionHash2);
});
});
});
describe('LibEIP712', () => {
it('should return the correct domain separator schema hash', async () => {
const schema = stringifySchema(orderConstants.DEFAULT_DOMAIN_SCHEMA);
const expectedSchemaHash = ethUtil.bufferToHex(ethUtil.sha3(Buffer.from(schema)));
const actualSchemaHash = await libs.getDomainSeparatorSchemaHash.callAsync();
expect(actualSchemaHash).to.be.equal(expectedSchemaHash);
});
it('should return the correct order schema hash', async () => {
const schema = stringifySchema(orderConstants.EXCHANGE_ORDER_SCHEMA);
const expectedSchemaHash = ethUtil.bufferToHex(ethUtil.sha3(Buffer.from(schema)));
const actualSchemaHash = await libs.getOrderSchemaHash.callAsync();
expect(actualSchemaHash).to.be.equal(expectedSchemaHash);
});
it('should return the correct domain separator', async () => {
const schema = stringifySchema(orderConstants.DEFAULT_DOMAIN_SCHEMA);
const schemaHash = ethUtil.sha3(Buffer.from(schema));
const payload = Buffer.concat([
schemaHash,
ethUtil.sha3(Buffer.from(orderConstants.EXCHANGE_DOMAIN_NAME)),
ethUtil.sha3(Buffer.from(orderConstants.EXCHANGE_DOMAIN_VERSION)),
ethUtil.setLengthLeft(ethUtil.toBuffer(chainId), 32),
ethUtil.setLengthLeft(ethUtil.toBuffer(libs.address), 32),
]);
const expectedDomain = ethUtil.bufferToHex(ethUtil.sha3(payload));
const actualDomain = await libs.getDomainSeparator.callAsync();
expect(actualDomain).to.be.equal(expectedDomain);
});
it('should return a different domain separator if chainId is different', async () => {
const domain1 = await libsAlternateChain.getDomainSeparator.callAsync();
const domain2 = await libs.getDomainSeparator.callAsync();
expect(domain1).to.be.not.equal(domain2);
});
});
});