Object.observe: Tests for __define{G,S}etter__.

test/mjsunit/harmony/object-observe.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 387 matching lines @@
   Object.defineProperty(obj, prop, {writable: false});
   obj[prop] = 7;  // ignored
   Object.defineProperty(obj, prop, {value: 8});
   Object.defineProperty(obj, prop, {value: 7, writable: true});
   Object.defineProperty(obj, prop, {get: function() {}});
   Object.defineProperty(obj, prop, {get: frozenFunction});
   Object.defineProperty(obj, prop, {get: frozenFunction});  // ignored
   Object.defineProperty(obj, prop, {get: frozenFunction, set: frozenFunction});
   Object.defineProperty(obj, prop, {set: frozenFunction});  // ignored
   Object.defineProperty(obj, prop, {get: undefined, set: frozenFunction});
+  obj.__defineSetter__(prop, frozenFunction);  // ignored
+  obj.__defineSetter__(prop, function() {});
+  obj.__defineGetter__(prop, function() {});
   delete obj[prop];
+  delete obj[prop];  // ignored
+  obj.__defineGetter__(prop, function() {});
   delete obj[prop];
   Object.defineProperty(obj, prop, {get: function() {}, configurable: true});
   Object.defineProperty(obj, prop, {value: 9, writable: true});
   obj[prop] = 10;
   delete obj[prop];
   Object.defineProperty(obj, prop, {value: 11, configurable: true});
   Object.deliverChangeRecords(observer.callback);
   observer.assertCallbackRecords([
     { object: obj, name: prop, type: "updated", oldValue: 1 },
     { object: obj, name: prop, type: "updated", oldValue: 2 },
     { object: obj, name: prop, type: "deleted", oldValue: 3 },
     { object: obj, name: prop, type: "new" },
     { object: obj, name: prop, type: "updated", oldValue: 4 },
     { object: obj, name: prop, type: "updated", oldValue: 5 },
     { object: obj, name: prop, type: "reconfigured", oldValue: 6 },
     { object: obj, name: prop, type: "updated", oldValue: 6 },
     { object: obj, name: prop, type: "reconfigured", oldValue: 8 },
     { object: obj, name: prop, type: "reconfigured", oldValue: 7 },
     { object: obj, name: prop, type: "reconfigured" },
     { object: obj, name: prop, type: "reconfigured" },
     { object: obj, name: prop, type: "reconfigured" },
+    { object: obj, name: prop, type: "reconfigured" },
+    { object: obj, name: prop, type: "reconfigured" },
     { object: obj, name: prop, type: "deleted" },
     { object: obj, name: prop, type: "new" },
+    { object: obj, name: prop, type: "deleted" },
+    { object: obj, name: prop, type: "new" },
     { object: obj, name: prop, type: "reconfigured" },
     { object: obj, name: prop, type: "updated", oldValue: 9 },
     { object: obj, name: prop, type: "deleted", oldValue: 10 },
     { object: obj, name: prop, type: "new" },
   ]);
   Object.unobserve(obj, observer.callback);
   delete obj[prop];
 }
 
 function TestObserveNonConfigurable(obj, prop) {
@@ skipping 17 matching lines @@
     { object: obj, name: prop, type: "updated", oldValue: 5 },
     { object: obj, name: prop, type: "updated", oldValue: 6 },
     { object: obj, name: prop, type: "reconfigured", oldValue: 7 },
   ]);
   Object.unobserve(obj, observer.callback);
 }
 
 function createProxy(create, x) {
   var handler = {
     getPropertyDescriptor: function(k) {
-      return Object.getOwnPropertyDescriptor(this.target, k);
+      for (var o = this.target; o; o = Object.getPrototypeOf(o)) {
+        var desc = Object.getOwnPropertyDescriptor(o, k);
+        if (desc) return desc;
+      }
+      return undefined;
     },
     getOwnPropertyDescriptor: function(k) {
       return Object.getOwnPropertyDescriptor(this.target, k);
     },
     defineProperty: function(k, desc) {
       var x = Object.defineProperty(this.target, k, desc);
       Object.deliverChangeRecords(this.callback);
       return x;
     },
     delete: function(k) {
@@ skipping 311 matching lines @@
 Object.observe(dummy, observer.callback);
 Object.unobserve(dummy, observer.callback);
 var array = [0];
 Object.observe(array, observer.callback);
 array.splice(0, 1);
 Object.deliverChangeRecords(observer.callback);
 observer.assertCallbackRecords([
   { object: array, name: '0', type: 'deleted', oldValue: 0 },
   { object: array, name: 'length', type: 'updated', oldValue: 1},
 ]);