chromium/base/trace_event/trace_category_unittest.cc

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40284755): Remove this and spanify to fix the errors.
#pragma allow_unsafe_buffers
#endif

#include <string.h>

#include <memory>

#include "base/containers/span.h"
#include "base/functional/bind.h"
#include "base/lazy_instance.h"
#include "base/synchronization/lock.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/thread.h"
#include "base/trace_event/category_registry.h"
#include "base/trace_event/trace_category.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace base {
namespace trace_event {

// Static initializers are generally forbidden. However, in the past we ran in
// the case of some test using tracing in a static initializer. This test checks
// That the category registry doesn't rely on static initializers itself and is
// functional even if called from another static initializer.
bool Initializer() { … }
bool g_initializer_check = …;

class TraceCategoryTest : public testing::Test { … };

TEST_F(TraceCategoryTest, Basic) { … }

// Tries to cover the case of multiple threads creating the same category
// simultaneously. Should never end up with distinct entries with the same name.
TEST_F(TraceCategoryTest, ThreadRaces) { … }

// Tests getting trace categories by name at compile-time.
TEST_F(TraceCategoryTest, GetCategoryAtCompileTime) { … }

}  // namespace trace_event
}  // namespace base