Update tests for optional feeRate

packages/order-utils/test/rate_utils_test.ts

@@ -23,12 +23,18 @@ describe('rateUtils', () => {
                 'Expected feeRate: -1 to be greater than or equal to 0',
             );
         });
-        it('correctly calculates fee adjusted rate', async () => {
+        it('correctly calculates fee adjusted rate when feeRate is provided', async () => {
             const feeRate = new BigNumber(2); // ZRX costs 2 units of takerAsset per 1 unit of ZRX
             const feeAdjustedRate = rateUtils.getFeeAdjustedRateOfOrder(testOrder, feeRate);
             // the order actually takes 100 + (2 * 20) takerAsset units to fill 100 units of makerAsset
             expect(feeAdjustedRate).to.bignumber.equal(new BigNumber(1.4));
         });
+        it('correctly calculates fee adjusted rate when no feeRate is provided', async () => {
+            const feeAdjustedRate = rateUtils.getFeeAdjustedRateOfOrder(testOrder);
+            // because no feeRate was provided we just assume 0 fees
+            // the order actually takes 100 takerAsset units to fill 100 units of makerAsset
+            expect(feeAdjustedRate).to.bignumber.equal(new BigNumber(1));
+        });
     });
     describe('#getFeeAdjustedRateOfFeeOrder', () => {
         it('throws when takerFee exceeds makerAssetAmount', async () => {

packages/order-utils/test/sorting_utils_test.ts

@@ -13,6 +13,7 @@ const expect = chai.expect;
 
 describe('sortingUtils', () => {
     describe('#sortOrdersByFeeAdjustedRate', () => {
+        const feeRate = new BigNumber(1); // ZRX costs 1 unit of takerAsset per 1 unit of ZRX
         // rate: 2 takerAsset / makerAsset
         const testOrder1 = testOrderFactory.generateTestSignedOrder({
             makerAssetAmount: new BigNumber(100),
@@ -29,8 +30,7 @@ describe('sortingUtils', () => {
             takerAssetAmount: new BigNumber(200),
             takerFee: new BigNumber(50),
         });
-        it('correctly sorts by fee adjusted rate', async () => {
+        it('correctly sorts by fee adjusted rate when feeRate is Provided', async () => {
-            const feeRate = new BigNumber(1); // ZRX costs 1 unit of takerAsset per 1 unit of ZRX
             const orders = [testOrder1, testOrder2, testOrder3];
             const sortedOrders = sortingUtils.sortOrdersByFeeAdjustedRate(
                 [testOrder1, testOrder2, testOrder3],
@@ -38,6 +38,11 @@ describe('sortingUtils', () => {
             );
             expect(sortedOrders).to.deep.equal([testOrder2, testOrder1, testOrder3]);
         });
+        it('correctly sorts by fee adjusted rate when no feeRate is Provided', async () => {
+            const orders = [testOrder1, testOrder2, testOrder3];
+            const sortedOrders = sortingUtils.sortOrdersByFeeAdjustedRate([testOrder1, testOrder2, testOrder3]);
+            expect(sortedOrders).to.deep.equal([testOrder2, testOrder1, testOrder3]);
+        });
     });
     describe('#sortFeeOrdersByFeeAdjustedRate', () => {
         // rate: 200 takerAsset / makerAsset