add traceTransaction

lib/ganacheHelper.js

@@ -17,6 +17,10 @@ const takeSnapshot = async () => {
   return await send('evm_snapshot')
 }
 
+const traceTransaction = async (tx) => {
+  return await send('debug_traceTransaction', [tx, {}])
+}
+
 const revertSnapshot = async (id) => {
   await send('evm_revert', [id])
 }
@@ -44,4 +48,5 @@ module.exports = {
   minerStop,
   minerStart,
   increaseTime,
+  traceTransaction
 }