split interceptor tests off of test-api

test/cctest/test-api.h

+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/v8.h"
+
+#include "src/cpu-profiler.h"
+#include "src/isolate.h"
+#include "src/vm-state.h"
+#include "test/cctest/cctest.h"
+
+template <typename T>
+static void CheckReturnValue(const T& t, i::Address callback) {
+  v8::ReturnValue<v8::Value> rv = t.GetReturnValue();
+  i::Object** o = *reinterpret_cast<i::Object***>(&rv);
+  CHECK_EQ(CcTest::isolate(), t.GetIsolate());
+  CHECK_EQ(t.GetIsolate(), rv.GetIsolate());
+  CHECK((*o)->IsTheHole() || (*o)->IsUndefined());
+  // Verify reset
+  bool is_runtime = (*o)->IsTheHole();
+  rv.Set(true);
+  CHECK(!(*o)->IsTheHole() && !(*o)->IsUndefined());
+  rv.Set(v8::Handle<v8::Object>());
+  CHECK((*o)->IsTheHole() || (*o)->IsUndefined());
+  CHECK_EQ(is_runtime, (*o)->IsTheHole());
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(t.GetIsolate());
+  // If CPU profiler is active check that when API callback is invoked
+  // VMState is set to EXTERNAL.
+  if (isolate->cpu_profiler()->is_profiling()) {
+    CHECK_EQ(v8::EXTERNAL, isolate->current_vm_state());
+    CHECK(isolate->external_callback_scope());
+    CHECK_EQ(callback, isolate->external_callback_scope()->callback());
+  }
+}