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import { orderFactory } from '@0x/order-utils/lib/src/order_factory';
import * as chai from 'chai';
import * as _ from 'lodash';
import 'mocha';
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));
});
});
});
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