Track JS allocations as they arrive with no affection on performance when tracking is switched off

test/cctest/cctest.h

Index: test/cctest/cctest.h
diff --git a/test/cctest/cctest.h b/test/cctest/cctest.h
index b9c5d00fdd15cf979fb682a98683710d3815a890..04bee6806d545d3e40342abffe1fd3df275f2bf9 100644
--- a/test/cctest/cctest.h
+++ b/test/cctest/cctest.h
@@ -78,7 +78,6 @@ typedef v8::internal::EnumSet<CcTestExtensionIds> CcTestExtensionFlags;
   EXTENSION_LIST(DEFINE_EXTENSION_FLAG)
 #undef DEFINE_EXTENSION_FLAG
 
-

[yurys, 2013/09/25 10:41:12]

revert this

[Alexandra Mikhaylova, 2013/09/25 14:33:40]

Done.

 class CcTest {
  public:
   typedef void (TestFunction)();
@@ -344,4 +343,26 @@ static inline void SimulateFullSpace(v8::internal::PagedSpace* space) {
 }
 
 
+// Helper class for new allocations tracking and checking.
+// To use checking of JS allocations tracking in a test,
+// just create an instance of this class.
+class HeapObjectsTracker {
+ public:
+  HeapObjectsTracker() {
+    heap_profiler_ = i::Isolate::Current()->heap_profiler();
+    CHECK_NE(NULL, heap_profiler_);
+    heap_profiler_->StartHeapAllocationsRecording();
+  }
+
+  virtual ~HeapObjectsTracker() {

[yurys, 2013/09/25 10:41:12]

No need to make it virtual.

[Alexandra Mikhaylova, 2013/09/25 14:33:40]

Done.

+    i::Isolate::Current()->heap()->CollectAllAvailableGarbage();
+    CHECK_EQ(0, heap_profiler_->FindUntrackedObjects());
+    heap_profiler_->StopHeapAllocationsRecording();
+  }
+
+ private:
+  i::HeapProfiler* heap_profiler_;
+};
+
+
 #endif  // ifndef CCTEST_H_