Make amountAvailableToFill required

2 files changed, 3 insertions, 7 deletions

diff --git a/packages/asset-buyer/src/errors.ts b/packages/asset-buyer/src/errors.ts
index 68e9a684b..ec5fe548c 100644
--- a/packages/asset-buyer/src/errors.ts
+++ b/packages/asset-buyer/src/errors.ts
@@ -9,11 +9,11 @@ export class InsufficientAssetLiquidityError extends Error {
     /**
      * The amount availabe to fill (in base units) factoring in slippage.
      */
-    public amountAvailableToFill?: BigNumber;
+    public amountAvailableToFill: BigNumber;
     /**
      * @param amountAvailableToFill The amount availabe to fill (in base units) factoring in slippage
      */
-    constructor(amountAvailableToFill?: BigNumber) {
+    constructor(amountAvailableToFill: BigNumber) {
         super(AssetBuyerError.InsufficientAssetLiquidity);
         this.amountAvailableToFill = amountAvailableToFill;
         // Setting prototype so instanceof works.  See https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#extending-built-ins-like-error-array-and-map-may-no-longer-work
diff --git a/packages/asset-buyer/src/utils/buy_quote_calculator.ts b/packages/asset-buyer/src/utils/buy_quote_calculator.ts
index 59293d1b7..ceeee93d3 100644
--- a/packages/asset-buyer/src/utils/buy_quote_calculator.ts
+++ b/packages/asset-buyer/src/utils/buy_quote_calculator.ts
@@ -47,11 +47,7 @@ export const buyQuoteCalculator = {
                 .div(multiplerNeededWithSlippage)
                 .round(0, BigNumber.ROUND_DOWN);
 
-            throw new InsufficientAssetLiquidityError(
-                amountAvailableToFillConsideringSlippage.gt(constants.ZERO_AMOUNT)
-                    ? amountAvailableToFillConsideringSlippage
-                    : undefined,
-            );
+            throw new InsufficientAssetLiquidityError(amountAvailableToFillConsideringSlippage);
         }
         // if we are not buying ZRX:
         // given the orders calculated above, find the fee-orders that cover the desired assetBuyAmount (with slippage)