Improve error handling

Author: Ruben Bridgewater

lib/parser.js

@@ -223,7 +223,10 @@ function parseType (parser, type) {
     case 45: // -
       return parseError(parser)
     default:
-      return handleError(parser, new ReplyError('Protocol error, got ' + JSON.stringify(String.fromCharCode(type)) + ' as reply type byte'))
+      const err = new ReplyError('Protocol error, got ' + JSON.stringify(String.fromCharCode(type)) + ' as reply type byte', 20)
+      err.offset = parser.offset
+      err.buffer = JSON.stringify(parser.buffer)
+      return handleError(parser, err)
   }
 }
 

lib/replyError.js

@@ -2,9 +2,10 @@
 
 var util = require('util')
 
-function ReplyError (message) {
+function ReplyError (message, newLimit) {
   var limit = Error.stackTraceLimit
-  Error.stackTraceLimit = 2
+  Error.stackTraceLimit = newLimit || 2
+  Error.call(this, message)
   Error.captureStackTrace(this, this.constructor)
   Error.stackTraceLimit = limit
   Object.defineProperty(this, 'message', {

test/parsers.spec.js

@@ -722,7 +722,7 @@ describe('parsers', function () {
       })
 
       it('handle big data 2 with buffers', function (done) {
-        this.timeout(4000)
+        this.timeout(5000)
         var lorem = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, ' +
           'sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ' +
           'Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ' +