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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/common/common_manifest_handlers.h"
#include "extensions/common/manifest_handler.h"
#include "extensions/common/scoped_testing_manifest_handler_registry.h"
#include "extensions/test/logging_timer.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
// This and the following test are used to monitor the performance
// of the manifest handler registry initialization path, since
// it was determined to be a large part of the extensions system
// startup cost. They are prefixed with "MANUAL_" since they are
// not run like regular unit tests. They can be run like this:
// extensions_unittests --gtest_filter="ManifestHandlerPerfTest.*"
// and should be run after any substantial changes to the related
// code.
TEST(ManifestHandlerPerfTest, MANUAL_CommonInitialize) {
ScopedTestingManifestHandlerRegistry scoped_registry;
static constexpr char kTimerId[] = "CommonInitialize";
for (int i = 0; i < 100000; ++i) {
{
LoggingTimer timer(kTimerId);
RegisterCommonManifestHandlers();
ManifestHandler::FinalizeRegistration();
}
ManifestHandlerRegistry::ResetForTesting();
}
LoggingTimer::Print();
}
TEST(ManifestHandlerPerfTest, MANUAL_LookupTest) {
ScopedTestingManifestHandlerRegistry scoped_registry;
RegisterCommonManifestHandlers();
ManifestHandler::FinalizeRegistration();
ManifestHandlerRegistry* registry = ManifestHandlerRegistry::Get();
ASSERT_TRUE(registry);
std::vector<std::string> handler_names;
handler_names.reserve(registry->handlers_.size());
for (const auto& entry : registry->handlers_) {
handler_names.push_back(entry.first);
}
static constexpr char kTimerId[] = "LookupTest";
for (int i = 0; i < 100000; ++i) {
LoggingTimer timer(kTimerId);
for (const auto& name : handler_names) {
registry->handlers_.find(name);
}
}
LoggingTimer::Print();
}
TEST(ManifestHandlerPerfTest, MANUAL_CommonMeasureFinalization) {
ScopedTestingManifestHandlerRegistry scoped_registry;
static constexpr char kTimerId[] = "Finalize";
for (int i = 0; i < 100000; ++i) {
{
RegisterCommonManifestHandlers();
LoggingTimer timer(kTimerId);
ManifestHandler::FinalizeRegistration();
}
ManifestHandlerRegistry::ResetForTesting();
}
LoggingTimer::Print();
}
} // namespace extensions
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