From 8b7caef0db337a5f1b9bf41ee5f8a9157eda4d1d Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Wed, 4 Oct 2017 14:21:39 +0300
Subject: Fix an issue when validation failed, but contract call will succeed

---
 src/utils/order_validation_utils.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/utils')

diff --git a/src/utils/order_validation_utils.ts b/src/utils/order_validation_utils.ts
index 6f7522c41..de20cf06d 100644
--- a/src/utils/order_validation_utils.ts
+++ b/src/utils/order_validation_utils.ts
@@ -121,7 +121,11 @@ export class OrderValidationUtils {
         }
 
         if (!isMakerTokenZRX) {
-            const makerZRXBalance = await this.tokenWrapper.getBalanceAsync(zrxTokenAddress, signedOrder.maker);
+            const isTakerTokenZRX = signedOrder.takerTokenAddress === zrxTokenAddress;
+            let makerZRXBalance = await this.tokenWrapper.getBalanceAsync(zrxTokenAddress, signedOrder.maker);
+            if (isTakerTokenZRX) {
+                makerZRXBalance = makerZRXBalance.plus(fillTakerAmount);
+            }
             const makerZRXAllowance = await this.tokenWrapper.getProxyAllowanceAsync(
                 zrxTokenAddress, signedOrder.maker);
 
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