From e30f8628db7f3f994407c219130255af44343142 Mon Sep 17 00:00:00 2001
From: HirokiUchikawa <hiroki.uchikawa.gb@hitachi.com>
Date: Wed, 9 May 2018 19:19:37 +0900
Subject: [PATCH] Revert runtime/util

---
 red/runtime/util.js           | 2 +-
 test/red/runtime/util_spec.js | 8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/red/runtime/util.js b/red/runtime/util.js
index 4d077c21f..257e87777 100644
--- a/red/runtime/util.js
+++ b/red/runtime/util.js
@@ -240,7 +240,7 @@ function getMessageProperty(msg,expr) {
     var msgPropParts = normalisePropertyExpression(expr);
     var m;
     msgPropParts.reduce(function(obj, key) {
-        result = ((typeof obj !== "undefined") && (typeof obj[key] !== "undefined") ? obj[key] : undefined);
+        result = (typeof obj[key] !== "undefined" ? obj[key] : undefined);
         return result;
     }, msg);
     return result;
diff --git a/test/red/runtime/util_spec.js b/test/red/runtime/util_spec.js
index c3e797d26..1b7438efd 100644
--- a/test/red/runtime/util_spec.js
+++ b/test/red/runtime/util_spec.js
@@ -153,9 +153,11 @@ describe("red/util", function() {
             var v = util.getMessageProperty({a:"foo"},"msg.b");
             should.not.exist(v);
         });
-        it('should return undefined if property parent does not exist', function() {
-            var v = util.getMessageProperty({a:"foo"},"msg.a.b.c");
-            should.not.exist(v);
+        it('should throw error if property parent does not exist', function() {
+            /*jshint immed: false */
+            (function() {
+                util.getMessageProperty({a:"foo"},"msg.a.b.c");
+            }).should.throw();
         });
         it('retrieves a property with array syntax', function() {
             var v = util.getMessageProperty({a:["foo","bar"]},"msg.a[0]");