additional test to cover last line in encodeObject

test/unit/@node-red/util/lib/util_spec.js

@@ -868,7 +868,20 @@ describe("@node-red/util/util", function() {
                 success.should.eql(true);
                 done();
             });
-
+            it('test bad object constructor', function(done) {
+                var msg = {
+                    msg: {
+                        mystrangeobj:"hello",
+                        constructor: { 
+                            get name(){
+                                throw new Error('Exception in constructor name');
+                            }
+                        }                      
+                    },
+                };
+                var result = util.encodeObject(msg);
+                done();
+            });
 
         });
     });