Improve insufficient balance checking in retry loop

1 files changed, 9 insertions, 0 deletions

diff --git a/app/scripts/lib/tx-utils.js b/app/scripts/lib/tx-utils.js
index 149d93102..4e780fcc0 100644
--- a/app/scripts/lib/tx-utils.js
+++ b/app/scripts/lib/tx-utils.js
@@ -118,6 +118,15 @@ module.exports = class txProviderUtils {
     }
   }
 
+  sufficientBalance (tx, hexBalance) {
+    const balance = hexToBn(hexBalance)
+    const value = hexToBn(tx.value)
+    const gasLimit = hexToBn(tx.gas)
+    const gasPrice = hexToBn(tx.gasPrice)
+
+    const maxCost = value.add(gasLimit.mul(gasPrice))
+    return balance.gte(maxCost)
+  }
 
 }