[inspector] Refactor inspector test

test/inspector/isolate-data.cc

 // Copyright 2017 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 "test/inspector/isolate-data.h"
 
 #include "test/inspector/inspector-impl.h"
 #include "test/inspector/task-runner.h"
 
 namespace {
 
 const int kIsolateDataIndex = 2;
+const int kContextGroupIdIndex = 3;
 
 v8::internal::Vector<uint16_t> ToVector(v8::Local<v8::String> str) {
   v8::internal::Vector<uint16_t> buffer =
       v8::internal::Vector<uint16_t>::New(str->Length());
   str->Write(buffer.start(), 0, str->Length());
   return buffer;
 }
 
 }  //  namespace
 
 IsolateData::IsolateData(TaskRunner* task_runner,
                          IsolateData::SetupGlobalTasks setup_global_tasks,
-                         v8::StartupData* startup_data)
+                         v8::StartupData* startup_data,
+                         InspectorClientImpl::FrontendChannel* channel)
     : task_runner_(task_runner),
       setup_global_tasks_(std::move(setup_global_tasks)) {
   v8::Isolate::CreateParams params;
   params.array_buffer_allocator =
       v8::ArrayBuffer::Allocator::NewDefaultAllocator();
   params.snapshot_blob = startup_data;
   isolate_ = v8::Isolate::New(params);
   isolate_->SetMicrotasksPolicy(v8::MicrotasksPolicy::kScoped);
+  if (channel)
+    inspector_.reset(new InspectorClientImpl(isolate_, task_runner, channel));
 }
 
 IsolateData* IsolateData::FromContext(v8::Local<v8::Context> context) {
   return static_cast<IsolateData*>(
       context->GetAlignedPointerFromEmbedderData(kIsolateDataIndex));
 }
 
 int IsolateData::CreateContextGroup() {
+  v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::ObjectTemplate> global_template =
       v8::ObjectTemplate::New(isolate_);
   for (auto it = setup_global_tasks_.begin(); it != setup_global_tasks_.end();
        ++it) {
     (*it)->Run(isolate_, global_template);
   }
   v8::Local<v8::Context> context =
       v8::Context::New(isolate_, nullptr, global_template);
   context->SetAlignedPointerInEmbedderData(kIsolateDataIndex, this);
   int context_group_id = ++last_context_group_id_;
+  // Should be 2-byte aligned.
+  context->SetAlignedPointerInEmbedderData(
+      kContextGroupIdIndex, reinterpret_cast<void*>(context_group_id * 2));
   contexts_[context_group_id].Reset(isolate_, context);
+  if (inspector_) inspector_->ContextCreated(context, context_group_id);
   return context_group_id;
 }
 
 v8::Local<v8::Context> IsolateData::GetContext(int context_group_id) {
   return contexts_[context_group_id].Get(isolate_);
 }
 
+int IsolateData::GetContextGroupId(v8::Local<v8::Context> context) {
+  return static_cast<int>(
+      reinterpret_cast<intptr_t>(
+          context->GetAlignedPointerFromEmbedderData(kContextGroupIdIndex)) /
+      2);
+}
+
 void IsolateData::RegisterModule(v8::Local<v8::Context> context,
                                  v8::internal::Vector<uint16_t> name,
                                  v8::ScriptCompiler::Source* source) {
   v8::Local<v8::Module> module;
   if (!v8::ScriptCompiler::CompileModule(isolate(), source).ToLocal(&module))
     return;
   if (!module->Instantiate(context, &IsolateData::ModuleResolveCallback))
     return;
   v8::Local<v8::Value> result;
   if (!module->Evaluate(context).ToLocal(&result)) return;
   modules_[name] = v8::Global<v8::Module>(isolate_, module);
 }
 
 v8::MaybeLocal<v8::Module> IsolateData::ModuleResolveCallback(
     v8::Local<v8::Context> context, v8::Local<v8::String> specifier,
     v8::Local<v8::Module> referrer) {
   std::string str = *v8::String::Utf8Value(specifier);
   IsolateData* data = IsolateData::FromContext(context);
   return data->modules_[ToVector(specifier)].Get(data->isolate_);
 }