Add test for sorting that happens in constructor

packages/forwarder-helper/test/forwarder_helper_impl_test.ts

@@ -1,12 +1,95 @@
+import { testOrderFactory } from '@0xproject/order-utils/lib/test/utils/test_order_factory';
+import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
+import * as _ from 'lodash';
 import 'mocha';
 
+import { ForwarderHelperImpl, ForwarderHelperImplConfig } from '../src/forwarder_helper_impl';
+
 import { chaiSetup } from './utils/chai_setup';
 
 chaiSetup.configure();
 const expect = chai.expect;
 
 describe('ForwarderHelperImpl', () => {
-    describe('#getMarketBuyOrdersInfo', () => {});
-    describe('#getMarketSellOrdersInfo', () => {});
+    // rate: 2 takerAsset / makerAsset
+    const testOrder1 = testOrderFactory.generateTestSignedOrder({
+        makerAssetAmount: new BigNumber(100),
+        takerAssetAmount: new BigNumber(200),
+    });
+    // rate: 1 takerAsset / makerAsset
+    const testOrder2 = testOrderFactory.generateTestSignedOrder({
+        makerAssetAmount: new BigNumber(100),
+        takerAssetAmount: new BigNumber(100),
+    });
+    // rate: 3 takerAsset / makerAsset
+    const testOrder3 = testOrderFactory.generateTestSignedOrder({
+        makerAssetAmount: new BigNumber(100),
+        takerAssetAmount: new BigNumber(300),
+    });
+    // rate: 3 WETH / ZRX
+    const testFeeOrder1 = testOrderFactory.generateTestSignedOrder({
+        makerAssetAmount: new BigNumber(100),
+        takerAssetAmount: new BigNumber(300),
+    });
+    // rate: 2 WETH / ZRX
+    const testFeeOrder2 = testOrderFactory.generateTestSignedOrder({
+        makerAssetAmount: new BigNumber(100),
+        takerAssetAmount: new BigNumber(200),
+    });
+    // rate: 1 WETH / ZRX
+    const testFeeOrder3 = testOrderFactory.generateTestSignedOrder({
+        makerAssetAmount: new BigNumber(100),
+        takerAssetAmount: new BigNumber(100),
+    });
+    describe('#constructor', () => {
+        const inputForwarderHelperConfig: ForwarderHelperImplConfig = {
+            orders: [testOrder1, testOrder2, testOrder3],
+            feeOrders: [testFeeOrder1, testFeeOrder2, testFeeOrder3],
+            remainingFillableMakerAssetAmounts: [new BigNumber(1), new BigNumber(2), new BigNumber(3)],
+            remainingFillableFeeAmounts: [new BigNumber(4), new BigNumber(5), new BigNumber(6)],
+        };
+        const inputForwarderHelperConfigNoRemainingAmounts: ForwarderHelperImplConfig = {
+            orders: [testOrder1, testOrder2, testOrder3],
+            feeOrders: [testFeeOrder1, testFeeOrder2, testFeeOrder3],
+        };
+        it('sorts orders', () => {
+            const forwarderHelper = new ForwarderHelperImpl(inputForwarderHelperConfig);
+            expect(forwarderHelper.config.orders).deep.equals([testOrder2, testOrder1, testOrder3]);
+        });
+        it('sorts fee orders', () => {
+            const forwarderHelper = new ForwarderHelperImpl(inputForwarderHelperConfig);
+            expect(forwarderHelper.config.feeOrders).deep.equals([testFeeOrder3, testFeeOrder2, testFeeOrder1]);
+        });
+        it('sorts remainingFillableMakerAssetAmounts', () => {
+            const forwarderHelper = new ForwarderHelperImpl(inputForwarderHelperConfig);
+            expect(forwarderHelper.config.remainingFillableMakerAssetAmounts).to.be.not.undefined();
+            expect(_.nth(forwarderHelper.config.remainingFillableMakerAssetAmounts, 0)).to.bignumber.equal(
+                new BigNumber(2),
+            );
+            expect(_.nth(forwarderHelper.config.remainingFillableMakerAssetAmounts, 1)).to.bignumber.equal(
+                new BigNumber(1),
+            );
+            expect(_.nth(forwarderHelper.config.remainingFillableMakerAssetAmounts, 2)).to.bignumber.equal(
+                new BigNumber(3),
+            );
+        });
+        it('sorts remainingFillableFeeAmounts', () => {
+            const forwarderHelper = new ForwarderHelperImpl(inputForwarderHelperConfig);
+            expect(forwarderHelper.config.remainingFillableFeeAmounts).to.be.not.undefined();
+            expect(_.nth(forwarderHelper.config.remainingFillableFeeAmounts, 0)).to.bignumber.equal(new BigNumber(6));
+            expect(_.nth(forwarderHelper.config.remainingFillableFeeAmounts, 1)).to.bignumber.equal(new BigNumber(5));
+            expect(_.nth(forwarderHelper.config.remainingFillableFeeAmounts, 2)).to.bignumber.equal(new BigNumber(4));
+        });
+        it('remainingFillableMakerAssetAmounts is undefined if none provided', () => {
+            const forwarderHelper = new ForwarderHelperImpl(inputForwarderHelperConfigNoRemainingAmounts);
+            expect(forwarderHelper.config.remainingFillableMakerAssetAmounts).to.be.undefined();
+        });
+        it('remainingFillableFeeAmounts is undefined if none provided', () => {
+            const forwarderHelper = new ForwarderHelperImpl(inputForwarderHelperConfigNoRemainingAmounts);
+            expect(forwarderHelper.config.remainingFillableFeeAmounts).to.be.undefined();
+        });
+    });
+    // describe('#getMarketBuyOrdersInfo', () => {});
+    // describe('#getMarketSellOrdersInfo', () => {});
 });