From 58839390c3001a90e387c4211620e38ca8c53717 Mon Sep 17 00:00:00 2001
From: Adam Klein <adamk@chromium.org>
Date: Mon, 17 Nov 2014 12:29:00 -0800
Subject: [PATCH] Add a cctest for using a C++ FunctionCallback as an
 Object.observe observer

R=rossberg@chromium.org
BUG=v8:3076
LOG=n

Review URL: https://codereview.chromium.org/733483003

Cr-Commit-Position: refs/heads/master@{#25384}
---
 test/cctest/test-object-observe.cc | 43 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/test/cctest/test-object-observe.cc b/test/cctest/test-object-observe.cc
index 8851d88..7e9992c 100644
--- a/test/cctest/test-object-observe.cc
+++ b/test/cctest/test-object-observe.cc
@@ -762,3 +762,46 @@ TEST(DontLeakContextOnNotifierPerformChange) {
   CcTest::isolate()->ContextDisposedNotification();
   CheckSurvivingGlobalObjectsCount(1);
 }
+
+
+static void ObserverCallback(const FunctionCallbackInfo<Value>& args) {
+  *static_cast<int*>(Handle<External>::Cast(args.Data())->Value()) =
+      Handle<Array>::Cast(args[0])->Length();
+}
+
+
+TEST(ObjectObserveCallsCppFunction) {
+  Isolate* isolate = CcTest::isolate();
+  HandleScope scope(isolate);
+  LocalContext context(isolate);
+  int numRecordsSent = 0;
+  Handle<Function> observer =
+      Function::New(CcTest::isolate(), ObserverCallback,
+                    External::New(isolate, &numRecordsSent));
+  context->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "observer"),
+                         observer);
+  CompileRun(
+      "var obj = {};"
+      "Object.observe(obj, observer);"
+      "obj.foo = 1;"
+      "obj.bar = 2;");
+  CHECK_EQ(2, numRecordsSent);
+}
+
+
+TEST(ObjectObserveCallsFunctionTemplateInstance) {
+  Isolate* isolate = CcTest::isolate();
+  HandleScope scope(isolate);
+  LocalContext context(isolate);
+  int numRecordsSent = 0;
+  Handle<FunctionTemplate> tmpl = FunctionTemplate::New(
+      isolate, ObserverCallback, External::New(isolate, &numRecordsSent));
+  context->Global()->Set(String::NewFromUtf8(CcTest::isolate(), "observer"),
+                         tmpl->GetFunction());
+  CompileRun(
+      "var obj = {};"
+      "Object.observe(obj, observer);"
+      "obj.foo = 1;"
+      "obj.bar = 2;");
+  CHECK_EQ(2, numRecordsSent);
+}
-- 
2.7.4