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import { BigNumber } from '@0xproject/utils';
import * as chai from 'chai';
import 'mocha';
import { AbstractBalanceAndProxyAllowanceFetcher } from '../src/abstract/abstract_balance_and_proxy_allowance_fetcher';
import { AbstractOrderFilledCancelledFetcher } from '../src/abstract/abstract_order_filled_cancelled_fetcher';
import { OrderStateUtils } from '../src/order_state_utils';
import { chaiSetup } from './utils/chai_setup';
import { testOrderFactory } from './utils/test_order_factory';
chaiSetup.configure();
const expect = chai.expect;
describe('OrderStateUtils', () => {
describe('#getOpenOrderStateAsync', () => {
const buildMockBalanceFetcher = (takerBalance: BigNumber): AbstractBalanceAndProxyAllowanceFetcher => {
const balanceFetcher = {
async getBalanceAsync(_assetData: string, _userAddress: string): Promise<BigNumber> {
return takerBalance;
},
async getProxyAllowanceAsync(_assetData: string, _userAddress: string): Promise<BigNumber> {
return takerBalance;
},
};
return balanceFetcher;
};
const buildMockOrderFilledFetcher = (
filledAmount: BigNumber = new BigNumber(0),
cancelled: boolean = false,
): AbstractOrderFilledCancelledFetcher => {
const orderFetcher = {
async getFilledTakerAmountAsync(_orderHash: string): Promise<BigNumber> {
return filledAmount;
},
async isOrderCancelledAsync(_orderHash: string): Promise<boolean> {
return cancelled;
},
getZRXAssetData(): string {
return '';
},
};
return orderFetcher;
};
it('should have valid order state if order can be fully filled with small maker amount', async () => {
const makerAssetAmount = new BigNumber(10);
const takerAssetAmount = new BigNumber(10000000000000000);
const takerBalance = takerAssetAmount;
const orderFilledAmount = new BigNumber(0);
const mockBalanceFetcher = buildMockBalanceFetcher(takerBalance);
const mockOrderFilledFetcher = buildMockOrderFilledFetcher(orderFilledAmount);
const [signedOrder] = testOrderFactory.generateTestSignedOrders(
{
makerAssetAmount,
takerAssetAmount,
},
1,
);
const orderStateUtils = new OrderStateUtils(mockBalanceFetcher, mockOrderFilledFetcher);
const orderState = await orderStateUtils.getOpenOrderStateAsync(signedOrder);
expect(orderState.isValid).to.eq(true);
});
it('should be invalid when an order is partially filled where only a rounding error remains', async () => {
const makerAssetAmount = new BigNumber(1001);
const takerAssetAmount = new BigNumber(3);
const takerBalance = takerAssetAmount;
const orderFilledAmount = new BigNumber(2);
const mockBalanceFetcher = buildMockBalanceFetcher(takerBalance);
const mockOrderFilledFetcher = buildMockOrderFilledFetcher(orderFilledAmount);
const [signedOrder] = testOrderFactory.generateTestSignedOrders(
{
makerAssetAmount,
takerAssetAmount,
},
1,
);
const orderStateUtils = new OrderStateUtils(mockBalanceFetcher, mockOrderFilledFetcher);
const orderState = await orderStateUtils.getOpenOrderStateAsync(signedOrder);
expect(orderState.isValid).to.eq(false);
});
it('should be invalid when an order is cancelled', async () => {
const makerAssetAmount = new BigNumber(1000);
const takerAssetAmount = new BigNumber(2);
const takerBalance = takerAssetAmount;
const orderFilledAmount = new BigNumber(0);
const isCancelled = true;
const mockBalanceFetcher = buildMockBalanceFetcher(takerBalance);
const mockOrderFilledFetcher = buildMockOrderFilledFetcher(orderFilledAmount, isCancelled);
const [signedOrder] = testOrderFactory.generateTestSignedOrders(
{
makerAssetAmount,
takerAssetAmount,
},
1,
);
const orderStateUtils = new OrderStateUtils(mockBalanceFetcher, mockOrderFilledFetcher);
const orderState = await orderStateUtils.getOpenOrderStateAsync(signedOrder);
expect(orderState.isValid).to.eq(false);
});
it('should be invalid when an order is fully filled', async () => {
const makerAssetAmount = new BigNumber(1000);
const takerAssetAmount = new BigNumber(2);
const takerBalance = takerAssetAmount;
const orderFilledAmount = takerAssetAmount;
const isCancelled = false;
const mockBalanceFetcher = buildMockBalanceFetcher(takerBalance);
const mockOrderFilledFetcher = buildMockOrderFilledFetcher(orderFilledAmount, isCancelled);
const [signedOrder] = testOrderFactory.generateTestSignedOrders(
{
makerAssetAmount,
takerAssetAmount,
},
1,
);
const orderStateUtils = new OrderStateUtils(mockBalanceFetcher, mockOrderFilledFetcher);
const orderState = await orderStateUtils.getOpenOrderStateAsync(signedOrder);
expect(orderState.isValid).to.eq(false);
});
});
});
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