third_party/v8/test/cctest/test-trace-event.cc - cobalt - Git at Google

 // 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 <stdlib.h>
 #include <string.h>

 #include "src/init/v8.h"

 #include "test/cctest/cctest.h"

 #include "src/tracing/trace-event.h"

 namespace {

 struct MockTraceObject {
   char phase;
   std::string name;
   uint64_t id;
   uint64_t bind_id;
   int num_args;
   unsigned int flags;
   int64_t timestamp;
   MockTraceObject(char phase, std::string name, uint64_t id, uint64_t bind_id,
                   int num_args, int flags, int64_t timestamp)
       : phase(phase),
         name(name),
         id(id),
         bind_id(bind_id),
         num_args(num_args),
         flags(flags),
         timestamp(timestamp) {}
 };

 class MockTracingController : public v8::TracingController {
  public:
   MockTracingController() = default;
   MockTracingController(const MockTracingController&) = delete;
   MockTracingController& operator=(const MockTracingController&) = delete;

   uint64_t AddTraceEvent(
       char phase, const uint8_t* category_enabled_flag, const char* name,
       const char* scope, uint64_t id, uint64_t bind_id, int num_args,
       const char** arg_names, const uint8_t* arg_types,
       const uint64_t* arg_values,
       std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
       unsigned int flags) override {
     return AddTraceEventWithTimestamp(
         phase, category_enabled_flag, name, scope, id, bind_id, num_args,
         arg_names, arg_types, arg_values, arg_convertables, flags, 0);
   }

   uint64_t AddTraceEventWithTimestamp(
       char phase, const uint8_t* category_enabled_flag, const char* name,
       const char* scope, uint64_t id, uint64_t bind_id, int num_args,
       const char** arg_names, const uint8_t* arg_types,
       const uint64_t* arg_values,
       std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
       unsigned int flags, int64_t timestamp) override {
     std::unique_ptr<MockTraceObject> to = std::make_unique<MockTraceObject>(
         phase, std::string(name), id, bind_id, num_args, flags, timestamp);
     trace_objects_.push_back(std::move(to));
     return 0;
   }

   void UpdateTraceEventDuration(const uint8_t* category_enabled_flag,
                                 const char* name, uint64_t handle) override {}

   const uint8_t* GetCategoryGroupEnabled(const char* name) override {
     if (strncmp(name, "v8-cat", 6)) {
       static uint8_t no = 0;
       return &no;
     } else {
       static uint8_t yes = 0x7;
       return &yes;
     }
   }

   const std::vector<std::unique_ptr<MockTraceObject>>& GetMockTraceObjects()
       const {
     return trace_objects_;
   }

  private:
   std::vector<std::unique_ptr<MockTraceObject>> trace_objects_;
 };

 class MockTracingPlatform : public TestPlatform {
  public:
   MockTracingPlatform() {
     // Now that it's completely constructed, make this the current platform.
     i::V8::SetPlatformForTesting(this);
   }
   ~MockTracingPlatform() override = default;

   v8::TracingController* GetTracingController() override {
     return &tracing_controller_;
   }

   size_t NumberOfTraceObjects() {
     return tracing_controller_.GetMockTraceObjects().size();
   }

   MockTraceObject* GetTraceObject(size_t index) {
     return tracing_controller_.GetMockTraceObjects().at(index).get();
   }

  private:
   MockTracingController tracing_controller_;
 };

 }  // namespace

 TEST(TraceEventDisabledCategory) {
   MockTracingPlatform platform;

   // Disabled category, will not add events.
   TRACE_EVENT_BEGIN0("cat", "e1");
   TRACE_EVENT_END0("cat", "e1");
   CHECK_EQ(0, platform.NumberOfTraceObjects());
 }

 TEST(TraceEventNoArgs) {
   MockTracingPlatform platform;

   // Enabled category will add 2 events.
   TRACE_EVENT_BEGIN0("v8-cat", "e1");
   TRACE_EVENT_END0("v8-cat", "e1");

   CHECK_EQ(2, platform.NumberOfTraceObjects());
   CHECK_EQ('B', platform.GetTraceObject(0)->phase);
   CHECK_EQ("e1", platform.GetTraceObject(0)->name);
   CHECK_EQ(0, platform.GetTraceObject(0)->num_args);

   CHECK_EQ('E', platform.GetTraceObject(1)->phase);
   CHECK_EQ("e1", platform.GetTraceObject(1)->name);
   CHECK_EQ(0, platform.GetTraceObject(1)->num_args);
 }

 TEST(TraceEventWithOneArg) {
   MockTracingPlatform platform;

   TRACE_EVENT_BEGIN1("v8-cat", "e1", "arg1", 42);
   TRACE_EVENT_END1("v8-cat", "e1", "arg1", 42);
   TRACE_EVENT_BEGIN1("v8-cat", "e2", "arg1", "abc");
   TRACE_EVENT_END1("v8-cat", "e2", "arg1", "abc");

   CHECK_EQ(4, platform.NumberOfTraceObjects());

   CHECK_EQ(1, platform.GetTraceObject(0)->num_args);
   CHECK_EQ(1, platform.GetTraceObject(1)->num_args);
   CHECK_EQ(1, platform.GetTraceObject(2)->num_args);
   CHECK_EQ(1, platform.GetTraceObject(3)->num_args);
 }

 TEST(TraceEventWithTwoArgs) {
   MockTracingPlatform platform;

   TRACE_EVENT_BEGIN2("v8-cat", "e1", "arg1", 42, "arg2", "abc");
   TRACE_EVENT_END2("v8-cat", "e1", "arg1", 42, "arg2", "abc");
   TRACE_EVENT_BEGIN2("v8-cat", "e2", "arg1", "abc", "arg2", 43);
   TRACE_EVENT_END2("v8-cat", "e2", "arg1", "abc", "arg2", 43);

   CHECK_EQ(4, platform.NumberOfTraceObjects());

   CHECK_EQ(2, platform.GetTraceObject(0)->num_args);
   CHECK_EQ(2, platform.GetTraceObject(1)->num_args);
   CHECK_EQ(2, platform.GetTraceObject(2)->num_args);
   CHECK_EQ(2, platform.GetTraceObject(3)->num_args);
 }

 TEST(ScopedTraceEvent) {
   MockTracingPlatform platform;

   { TRACE_EVENT0("v8-cat", "e"); }

   CHECK_EQ(1, platform.NumberOfTraceObjects());
   CHECK_EQ(0, platform.GetTraceObject(0)->num_args);

   { TRACE_EVENT1("v8-cat", "e1", "arg1", "abc"); }

   CHECK_EQ(2, platform.NumberOfTraceObjects());
   CHECK_EQ(1, platform.GetTraceObject(1)->num_args);

   { TRACE_EVENT2("v8-cat", "e1", "arg1", "abc", "arg2", 42); }

   CHECK_EQ(3, platform.NumberOfTraceObjects());
   CHECK_EQ(2, platform.GetTraceObject(2)->num_args);
 }

 TEST(TestEventWithFlow) {
   MockTracingPlatform platform;

   static uint64_t bind_id = 21;
   {
     TRACE_EVENT_WITH_FLOW0("v8-cat", "f1", bind_id, TRACE_EVENT_FLAG_FLOW_OUT);
   }
   {
     TRACE_EVENT_WITH_FLOW0(
         "v8-cat", "f2", bind_id,
         TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT);
   }
   { TRACE_EVENT_WITH_FLOW0("v8-cat", "f3", bind_id, TRACE_EVENT_FLAG_FLOW_IN); }

   CHECK_EQ(3, platform.NumberOfTraceObjects());
   CHECK_EQ(bind_id, platform.GetTraceObject(0)->bind_id);
   CHECK_EQ(TRACE_EVENT_FLAG_FLOW_OUT, platform.GetTraceObject(0)->flags);
   CHECK_EQ(bind_id, platform.GetTraceObject(1)->bind_id);
   CHECK_EQ(TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT,
            platform.GetTraceObject(1)->flags);
   CHECK_EQ(bind_id, platform.GetTraceObject(2)->bind_id);
   CHECK_EQ(TRACE_EVENT_FLAG_FLOW_IN, platform.GetTraceObject(2)->flags);
 }

 TEST(TestEventWithId) {
   MockTracingPlatform platform;

   static uint64_t event_id = 21;
   TRACE_EVENT_ASYNC_BEGIN0("v8-cat", "a1", event_id);
   TRACE_EVENT_ASYNC_END0("v8-cat", "a1", event_id);

   CHECK_EQ(2, platform.NumberOfTraceObjects());
   CHECK_EQ(TRACE_EVENT_PHASE_ASYNC_BEGIN, platform.GetTraceObject(0)->phase);
   CHECK_EQ(event_id, platform.GetTraceObject(0)->id);
   CHECK_EQ(TRACE_EVENT_PHASE_ASYNC_END, platform.GetTraceObject(1)->phase);
   CHECK_EQ(event_id, platform.GetTraceObject(1)->id);
 }

 TEST(TestEventWithTimestamp) {
   MockTracingPlatform platform;

   TRACE_EVENT_INSTANT_WITH_TIMESTAMP0("v8-cat", "0arg",
                                       TRACE_EVENT_SCOPE_GLOBAL, 1729);
   TRACE_EVENT_INSTANT_WITH_TIMESTAMP1("v8-cat", "1arg",
                                       TRACE_EVENT_SCOPE_GLOBAL, 4104, "val", 1);
   TRACE_EVENT_MARK_WITH_TIMESTAMP2("v8-cat", "mark", 13832, "a", 1, "b", 2);

   TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP0("v8-cat", "begin", 5,
                                                         20683);
   TRACE_EVENT_COPY_NESTABLE_ASYNC_END_WITH_TIMESTAMP0("v8-cat", "end", 5,
                                                       32832);

   CHECK_EQ(5, platform.NumberOfTraceObjects());

   CHECK_EQ(1729, platform.GetTraceObject(0)->timestamp);
   CHECK_EQ(0, platform.GetTraceObject(0)->num_args);

   CHECK_EQ(4104, platform.GetTraceObject(1)->timestamp);
   CHECK_EQ(1, platform.GetTraceObject(1)->num_args);

   CHECK_EQ(13832, platform.GetTraceObject(2)->timestamp);
   CHECK_EQ(2, platform.GetTraceObject(2)->num_args);

   CHECK_EQ(20683, platform.GetTraceObject(3)->timestamp);
   CHECK_EQ(32832, platform.GetTraceObject(4)->timestamp);
 }

 TEST(BuiltinsIsTraceCategoryEnabled) {
   CcTest::InitializeVM();
   MockTracingPlatform platform;

   v8::Isolate* isolate = CcTest::isolate();
   v8::HandleScope handle_scope(isolate);
   LocalContext env;

   v8::Local<v8::Object> binding = env->GetExtrasBindingObject();
   CHECK(!binding.IsEmpty());

   auto undefined = v8::Undefined(isolate);
   auto isTraceCategoryEnabled =
       binding->Get(env.local(), v8_str("isTraceCategoryEnabled"))
           .ToLocalChecked()
           .As<v8::Function>();

   {
     // Test with an enabled category
     v8::Local<v8::Value> argv[] = {v8_str("v8-cat")};
     auto result = isTraceCategoryEnabled->Call(env.local(), undefined, 1, argv)
                       .ToLocalChecked()
                       .As<v8::Boolean>();

     CHECK(result->BooleanValue(isolate));
   }

   {
     // Test with a disabled category
     v8::Local<v8::Value> argv[] = {v8_str("cat")};
     auto result = isTraceCategoryEnabled->Call(env.local(), undefined, 1, argv)
                       .ToLocalChecked()
                       .As<v8::Boolean>();

     CHECK(!result->BooleanValue(isolate));
   }

   {
     // Test with an enabled utf8 category
     v8::Local<v8::Value> argv[] = {v8_str("v8-cat\u20ac")};
     auto result = isTraceCategoryEnabled->Call(env.local(), undefined, 1, argv)
                       .ToLocalChecked()
                       .As<v8::Boolean>();

     CHECK(result->BooleanValue(isolate));
   }
 }

 TEST(BuiltinsTrace) {
   CcTest::InitializeVM();
   MockTracingPlatform platform;

   v8::Isolate* isolate = CcTest::isolate();
   v8::HandleScope handle_scope(isolate);
   v8::Local<v8::Context> context = isolate->GetCurrentContext();
   LocalContext env;

   v8::Local<v8::Object> binding = env->GetExtrasBindingObject();
   CHECK(!binding.IsEmpty());

   auto undefined = v8::Undefined(isolate);
   auto trace = binding->Get(env.local(), v8_str("trace"))
                    .ToLocalChecked()
                    .As<v8::Function>();

   // Test with disabled category
   {
     v8::Local<v8::String> category = v8_str("cat");
     v8::Local<v8::String> name = v8_str("name");
     v8::Local<v8::Value> argv[] = {
         v8::Integer::New(isolate, 'b'),                // phase
         category, name, v8::Integer::New(isolate, 0),  // id
         undefined                                      // data
     };
     auto result = trace->Call(env.local(), undefined, 5, argv)
                       .ToLocalChecked()
                       .As<v8::Boolean>();

     CHECK(!result->BooleanValue(isolate));
     CHECK_EQ(0, platform.NumberOfTraceObjects());
   }

   // Test with enabled category
   {
     v8::Local<v8::String> category = v8_str("v8-cat");
     v8::Local<v8::String> name = v8_str("name");
     v8::Local<v8::Object> data = v8::Object::New(isolate);
     data->Set(context, v8_str("foo"), v8_str("bar")).FromJust();
     v8::Local<v8::Value> argv[] = {
         v8::Integer::New(isolate, 'b'),                  // phase
         category, name, v8::Integer::New(isolate, 123),  // id
         data                                             // data arg
     };
     auto result = trace->Call(env.local(), undefined, 5, argv)
                       .ToLocalChecked()
                       .As<v8::Boolean>();

     CHECK(result->BooleanValue(isolate));
     CHECK_EQ(1, platform.NumberOfTraceObjects());

     CHECK_EQ(123, platform.GetTraceObject(0)->id);
     CHECK_EQ('b', platform.GetTraceObject(0)->phase);
     CHECK_EQ("name", platform.GetTraceObject(0)->name);
     CHECK_EQ(1, platform.GetTraceObject(0)->num_args);
   }

   // Test with enabled utf8 category
   {
     v8::Local<v8::String> category = v8_str("v8-cat\u20ac");
     v8::Local<v8::String> name = v8_str("name\u20ac");
     v8::Local<v8::Object> data = v8::Object::New(isolate);
     data->Set(context, v8_str("foo"), v8_str("bar")).FromJust();
     v8::Local<v8::Value> argv[] = {
         v8::Integer::New(isolate, 'b'),                  // phase
         category, name, v8::Integer::New(isolate, 123),  // id
         data                                             // data arg
     };
     auto result = trace->Call(env.local(), undefined, 5, argv)
                       .ToLocalChecked()
                       .As<v8::Boolean>();

     CHECK(result->BooleanValue(isolate));
     CHECK_EQ(2, platform.NumberOfTraceObjects());

     CHECK_EQ(123, platform.GetTraceObject(1)->id);
     CHECK_EQ('b', platform.GetTraceObject(1)->phase);
     CHECK_EQ("name\u20ac", platform.GetTraceObject(1)->name);
     CHECK_EQ(1, platform.GetTraceObject(1)->num_args);
   }
 }
	// 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 <stdlib.h>
	#include <string.h>

	#include "src/init/v8.h"

	#include "test/cctest/cctest.h"

	#include "src/tracing/trace-event.h"

	namespace {

	struct MockTraceObject {
	char phase;
	std::string name;
	uint64_t id;
	uint64_t bind_id;
	int num_args;
	unsigned int flags;
	int64_t timestamp;
	MockTraceObject(char phase, std::string name, uint64_t id, uint64_t bind_id,
	int num_args, int flags, int64_t timestamp)
	: phase(phase),
	name(name),
	id(id),
	bind_id(bind_id),
	num_args(num_args),
	flags(flags),
	timestamp(timestamp) {}
	};

	class MockTracingController : public v8::TracingController {
	public:
	MockTracingController() = default;
	MockTracingController(const MockTracingController&) = delete;
	MockTracingController& operator=(const MockTracingController&) = delete;

	uint64_t AddTraceEvent(
	char phase, const uint8_t* category_enabled_flag, const char* name,
	const char* scope, uint64_t id, uint64_t bind_id, int num_args,
	const char** arg_names, const uint8_t* arg_types,
	const uint64_t* arg_values,
	std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
	unsigned int flags) override {
	return AddTraceEventWithTimestamp(
	phase, category_enabled_flag, name, scope, id, bind_id, num_args,
	arg_names, arg_types, arg_values, arg_convertables, flags, 0);
	}

	uint64_t AddTraceEventWithTimestamp(
	char phase, const uint8_t* category_enabled_flag, const char* name,
	const char* scope, uint64_t id, uint64_t bind_id, int num_args,
	const char** arg_names, const uint8_t* arg_types,
	const uint64_t* arg_values,
	std::unique_ptr<v8::ConvertableToTraceFormat>* arg_convertables,
	unsigned int flags, int64_t timestamp) override {
	std::unique_ptr<MockTraceObject> to = std::make_unique<MockTraceObject>(
	phase, std::string(name), id, bind_id, num_args, flags, timestamp);
	trace_objects_.push_back(std::move(to));
	return 0;
	}

	void UpdateTraceEventDuration(const uint8_t* category_enabled_flag,
	const char* name, uint64_t handle) override {}

	const uint8_t* GetCategoryGroupEnabled(const char* name) override {
	if (strncmp(name, "v8-cat", 6)) {
	static uint8_t no = 0;
	return &no;
	} else {
	static uint8_t yes = 0x7;
	return &yes;
	}
	}

	const std::vector<std::unique_ptr<MockTraceObject>>& GetMockTraceObjects()
	const {
	return trace_objects_;
	}

	private:
	std::vector<std::unique_ptr<MockTraceObject>> trace_objects_;
	};

	class MockTracingPlatform : public TestPlatform {
	public:
	MockTracingPlatform() {
	// Now that it's completely constructed, make this the current platform.
	i::V8::SetPlatformForTesting(this);
	}
	~MockTracingPlatform() override = default;

	v8::TracingController* GetTracingController() override {
	return &tracing_controller_;
	}

	size_t NumberOfTraceObjects() {
	return tracing_controller_.GetMockTraceObjects().size();
	}

	MockTraceObject* GetTraceObject(size_t index) {
	return tracing_controller_.GetMockTraceObjects().at(index).get();
	}

	private:
	MockTracingController tracing_controller_;
	};

	} // namespace

	TEST(TraceEventDisabledCategory) {
	MockTracingPlatform platform;

	// Disabled category, will not add events.
	TRACE_EVENT_BEGIN0("cat", "e1");
	TRACE_EVENT_END0("cat", "e1");
	CHECK_EQ(0, platform.NumberOfTraceObjects());
	}

	TEST(TraceEventNoArgs) {
	MockTracingPlatform platform;

	// Enabled category will add 2 events.
	TRACE_EVENT_BEGIN0("v8-cat", "e1");
	TRACE_EVENT_END0("v8-cat", "e1");

	CHECK_EQ(2, platform.NumberOfTraceObjects());
	CHECK_EQ('B', platform.GetTraceObject(0)->phase);
	CHECK_EQ("e1", platform.GetTraceObject(0)->name);
	CHECK_EQ(0, platform.GetTraceObject(0)->num_args);

	CHECK_EQ('E', platform.GetTraceObject(1)->phase);
	CHECK_EQ("e1", platform.GetTraceObject(1)->name);
	CHECK_EQ(0, platform.GetTraceObject(1)->num_args);
	}

	TEST(TraceEventWithOneArg) {
	MockTracingPlatform platform;

	TRACE_EVENT_BEGIN1("v8-cat", "e1", "arg1", 42);
	TRACE_EVENT_END1("v8-cat", "e1", "arg1", 42);
	TRACE_EVENT_BEGIN1("v8-cat", "e2", "arg1", "abc");
	TRACE_EVENT_END1("v8-cat", "e2", "arg1", "abc");

	CHECK_EQ(4, platform.NumberOfTraceObjects());

	CHECK_EQ(1, platform.GetTraceObject(0)->num_args);
	CHECK_EQ(1, platform.GetTraceObject(1)->num_args);
	CHECK_EQ(1, platform.GetTraceObject(2)->num_args);
	CHECK_EQ(1, platform.GetTraceObject(3)->num_args);
	}

	TEST(TraceEventWithTwoArgs) {
	MockTracingPlatform platform;

	TRACE_EVENT_BEGIN2("v8-cat", "e1", "arg1", 42, "arg2", "abc");
	TRACE_EVENT_END2("v8-cat", "e1", "arg1", 42, "arg2", "abc");
	TRACE_EVENT_BEGIN2("v8-cat", "e2", "arg1", "abc", "arg2", 43);
	TRACE_EVENT_END2("v8-cat", "e2", "arg1", "abc", "arg2", 43);

	CHECK_EQ(4, platform.NumberOfTraceObjects());

	CHECK_EQ(2, platform.GetTraceObject(0)->num_args);
	CHECK_EQ(2, platform.GetTraceObject(1)->num_args);
	CHECK_EQ(2, platform.GetTraceObject(2)->num_args);
	CHECK_EQ(2, platform.GetTraceObject(3)->num_args);
	}

	TEST(ScopedTraceEvent) {
	MockTracingPlatform platform;

	{ TRACE_EVENT0("v8-cat", "e"); }

	CHECK_EQ(1, platform.NumberOfTraceObjects());
	CHECK_EQ(0, platform.GetTraceObject(0)->num_args);

	{ TRACE_EVENT1("v8-cat", "e1", "arg1", "abc"); }

	CHECK_EQ(2, platform.NumberOfTraceObjects());
	CHECK_EQ(1, platform.GetTraceObject(1)->num_args);

	{ TRACE_EVENT2("v8-cat", "e1", "arg1", "abc", "arg2", 42); }

	CHECK_EQ(3, platform.NumberOfTraceObjects());
	CHECK_EQ(2, platform.GetTraceObject(2)->num_args);
	}

	TEST(TestEventWithFlow) {
	MockTracingPlatform platform;

	static uint64_t bind_id = 21;
	{
	TRACE_EVENT_WITH_FLOW0("v8-cat", "f1", bind_id, TRACE_EVENT_FLAG_FLOW_OUT);
	}
	{
	TRACE_EVENT_WITH_FLOW0(
	"v8-cat", "f2", bind_id,
	TRACE_EVENT_FLAG_FLOW_IN \| TRACE_EVENT_FLAG_FLOW_OUT);
	}
	{ TRACE_EVENT_WITH_FLOW0("v8-cat", "f3", bind_id, TRACE_EVENT_FLAG_FLOW_IN); }

	CHECK_EQ(3, platform.NumberOfTraceObjects());
	CHECK_EQ(bind_id, platform.GetTraceObject(0)->bind_id);
	CHECK_EQ(TRACE_EVENT_FLAG_FLOW_OUT, platform.GetTraceObject(0)->flags);
	CHECK_EQ(bind_id, platform.GetTraceObject(1)->bind_id);
	CHECK_EQ(TRACE_EVENT_FLAG_FLOW_IN \| TRACE_EVENT_FLAG_FLOW_OUT,
	platform.GetTraceObject(1)->flags);
	CHECK_EQ(bind_id, platform.GetTraceObject(2)->bind_id);
	CHECK_EQ(TRACE_EVENT_FLAG_FLOW_IN, platform.GetTraceObject(2)->flags);
	}

	TEST(TestEventWithId) {
	MockTracingPlatform platform;

	static uint64_t event_id = 21;
	TRACE_EVENT_ASYNC_BEGIN0("v8-cat", "a1", event_id);
	TRACE_EVENT_ASYNC_END0("v8-cat", "a1", event_id);

	CHECK_EQ(2, platform.NumberOfTraceObjects());
	CHECK_EQ(TRACE_EVENT_PHASE_ASYNC_BEGIN, platform.GetTraceObject(0)->phase);
	CHECK_EQ(event_id, platform.GetTraceObject(0)->id);
	CHECK_EQ(TRACE_EVENT_PHASE_ASYNC_END, platform.GetTraceObject(1)->phase);
	CHECK_EQ(event_id, platform.GetTraceObject(1)->id);
	}

	TEST(TestEventWithTimestamp) {
	MockTracingPlatform platform;

	TRACE_EVENT_INSTANT_WITH_TIMESTAMP0("v8-cat", "0arg",
	TRACE_EVENT_SCOPE_GLOBAL, 1729);
	TRACE_EVENT_INSTANT_WITH_TIMESTAMP1("v8-cat", "1arg",
	TRACE_EVENT_SCOPE_GLOBAL, 4104, "val", 1);
	TRACE_EVENT_MARK_WITH_TIMESTAMP2("v8-cat", "mark", 13832, "a", 1, "b", 2);

	TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP0("v8-cat", "begin", 5,
	20683);
	TRACE_EVENT_COPY_NESTABLE_ASYNC_END_WITH_TIMESTAMP0("v8-cat", "end", 5,
	32832);

	CHECK_EQ(5, platform.NumberOfTraceObjects());

	CHECK_EQ(1729, platform.GetTraceObject(0)->timestamp);
	CHECK_EQ(0, platform.GetTraceObject(0)->num_args);

	CHECK_EQ(4104, platform.GetTraceObject(1)->timestamp);
	CHECK_EQ(1, platform.GetTraceObject(1)->num_args);

	CHECK_EQ(13832, platform.GetTraceObject(2)->timestamp);
	CHECK_EQ(2, platform.GetTraceObject(2)->num_args);

	CHECK_EQ(20683, platform.GetTraceObject(3)->timestamp);
	CHECK_EQ(32832, platform.GetTraceObject(4)->timestamp);
	}

	TEST(BuiltinsIsTraceCategoryEnabled) {
	CcTest::InitializeVM();
	MockTracingPlatform platform;

	v8::Isolate* isolate = CcTest::isolate();
	v8::HandleScope handle_scope(isolate);
	LocalContext env;

	v8::Local<v8::Object> binding = env->GetExtrasBindingObject();
	CHECK(!binding.IsEmpty());

	auto undefined = v8::Undefined(isolate);
	auto isTraceCategoryEnabled =
	binding->Get(env.local(), v8_str("isTraceCategoryEnabled"))
	.ToLocalChecked()
	.As<v8::Function>();

	{
	// Test with an enabled category
	v8::Local<v8::Value> argv[] = {v8_str("v8-cat")};
	auto result = isTraceCategoryEnabled->Call(env.local(), undefined, 1, argv)
	.ToLocalChecked()
	.As<v8::Boolean>();

	CHECK(result->BooleanValue(isolate));
	}

	{
	// Test with a disabled category
	v8::Local<v8::Value> argv[] = {v8_str("cat")};
	auto result = isTraceCategoryEnabled->Call(env.local(), undefined, 1, argv)
	.ToLocalChecked()
	.As<v8::Boolean>();

	CHECK(!result->BooleanValue(isolate));
	}

	{
	// Test with an enabled utf8 category
	v8::Local<v8::Value> argv[] = {v8_str("v8-cat\u20ac")};
	auto result = isTraceCategoryEnabled->Call(env.local(), undefined, 1, argv)
	.ToLocalChecked()
	.As<v8::Boolean>();

	CHECK(result->BooleanValue(isolate));
	}
	}

	TEST(BuiltinsTrace) {
	CcTest::InitializeVM();
	MockTracingPlatform platform;

	v8::Isolate* isolate = CcTest::isolate();
	v8::HandleScope handle_scope(isolate);
	v8::Local<v8::Context> context = isolate->GetCurrentContext();
	LocalContext env;

	v8::Local<v8::Object> binding = env->GetExtrasBindingObject();
	CHECK(!binding.IsEmpty());

	auto undefined = v8::Undefined(isolate);
	auto trace = binding->Get(env.local(), v8_str("trace"))
	.ToLocalChecked()
	.As<v8::Function>();

	// Test with disabled category
	{
	v8::Local<v8::String> category = v8_str("cat");
	v8::Local<v8::String> name = v8_str("name");
	v8::Local<v8::Value> argv[] = {
	v8::Integer::New(isolate, 'b'), // phase
	category, name, v8::Integer::New(isolate, 0), // id
	undefined // data
	};
	auto result = trace->Call(env.local(), undefined, 5, argv)
	.ToLocalChecked()
	.As<v8::Boolean>();

	CHECK(!result->BooleanValue(isolate));
	CHECK_EQ(0, platform.NumberOfTraceObjects());
	}

	// Test with enabled category
	{
	v8::Local<v8::String> category = v8_str("v8-cat");
	v8::Local<v8::String> name = v8_str("name");
	v8::Local<v8::Object> data = v8::Object::New(isolate);
	data->Set(context, v8_str("foo"), v8_str("bar")).FromJust();
	v8::Local<v8::Value> argv[] = {
	v8::Integer::New(isolate, 'b'), // phase
	category, name, v8::Integer::New(isolate, 123), // id
	data // data arg
	};
	auto result = trace->Call(env.local(), undefined, 5, argv)
	.ToLocalChecked()
	.As<v8::Boolean>();

	CHECK(result->BooleanValue(isolate));
	CHECK_EQ(1, platform.NumberOfTraceObjects());

	CHECK_EQ(123, platform.GetTraceObject(0)->id);
	CHECK_EQ('b', platform.GetTraceObject(0)->phase);
	CHECK_EQ("name", platform.GetTraceObject(0)->name);
	CHECK_EQ(1, platform.GetTraceObject(0)->num_args);
	}

	// Test with enabled utf8 category
	{
	v8::Local<v8::String> category = v8_str("v8-cat\u20ac");
	v8::Local<v8::String> name = v8_str("name\u20ac");
	v8::Local<v8::Object> data = v8::Object::New(isolate);
	data->Set(context, v8_str("foo"), v8_str("bar")).FromJust();
	v8::Local<v8::Value> argv[] = {
	v8::Integer::New(isolate, 'b'), // phase
	category, name, v8::Integer::New(isolate, 123), // id
	data // data arg
	};
	auto result = trace->Call(env.local(), undefined, 5, argv)
	.ToLocalChecked()
	.As<v8::Boolean>();

	CHECK(result->BooleanValue(isolate));
	CHECK_EQ(2, platform.NumberOfTraceObjects());

	CHECK_EQ(123, platform.GetTraceObject(1)->id);
	CHECK_EQ('b', platform.GetTraceObject(1)->phase);
	CHECK_EQ("name\u20ac", platform.GetTraceObject(1)->name);
	CHECK_EQ(1, platform.GetTraceObject(1)->num_args);
	}
	}