import { orderFactory } from '@0xproject/order-utils'; import * as chai from 'chai'; import * as _ from 'lodash'; import 'mocha'; import { assert } from '../src/utils/assert'; import { calldataOptimizationUtils } from '../src/utils/calldata_optimization_utils'; import { constants } from '../src/utils/constants'; import { chaiSetup } from './utils/chai_setup'; chaiSetup.configure(); const expect = chai.expect; // utility for generating a set of order objects with mostly NULL values // except for a specified makerAssetData and takerAssetData const FAKE_ORDERS_COUNT = 5; const generateFakeOrders = (makerAssetData: string, takerAssetData: string) => _.map(_.range(FAKE_ORDERS_COUNT), index => { const order = orderFactory.createOrder( constants.NULL_ADDRESS, constants.ZERO_AMOUNT, makerAssetData, constants.ZERO_AMOUNT, takerAssetData, constants.NULL_ADDRESS, ); return { ...order, signature: 'dummy signature', }; }); describe('calldataOptimizationUtils', () => { const fakeMakerAssetData = 'fakeMakerAssetData'; const fakeTakerAssetData = 'fakeTakerAssetData'; const orders = generateFakeOrders(fakeMakerAssetData, fakeTakerAssetData); describe('#optimizeForwarderOrders', () => { it('should make makerAssetData `0x` unless first order', () => { const optimizedOrders = calldataOptimizationUtils.optimizeForwarderOrders(orders); expect(optimizedOrders[0].makerAssetData).to.equal(fakeMakerAssetData); const ordersWithoutHead = _.slice(optimizedOrders, 1); _.forEach(ordersWithoutHead, order => expect(order.makerAssetData).to.equal(constants.NULL_BYTES)); }); it('should make all takerAssetData `0x`', () => { const optimizedOrders = calldataOptimizationUtils.optimizeForwarderOrders(orders); _.forEach(optimizedOrders, order => expect(order.takerAssetData).to.equal(constants.NULL_BYTES)); }); }); describe('#optimizeForwarderFeeOrders', () => { it('should make all makerAssetData `0x`', () => { const optimizedOrders = calldataOptimizationUtils.optimizeForwarderFeeOrders(orders); _.forEach(optimizedOrders, order => expect(order.makerAssetData).to.equal(constants.NULL_BYTES)); }); it('should make all takerAssetData `0x`', () => { const optimizedOrders = calldataOptimizationUtils.optimizeForwarderFeeOrders(orders); _.forEach(optimizedOrders, order => expect(order.takerAssetData).to.equal(constants.NULL_BYTES)); }); }); });