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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/child/child_performance_coordinator.h"
#include <memory>
#include <utility>
#include "base/functional/callback.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "base/task/sequenced_task_runner.h"
#include "base/test/task_environment.h"
#include "components/performance_manager/public/mojom/coordination_unit.mojom.h"
#include "components/performance_manager/scenario_api/performance_scenario_test_support.h"
#include "components/performance_manager/scenario_api/performance_scenarios.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
using performance_manager::mojom::ChildProcessCoordinationUnit;
using performance_scenarios::PerformanceScenarioTestHelper;
using performance_scenarios::ScenarioScope;
using ::testing::_;
using ::testing::Invoke;
using InitializeChildProcessCoordinationCallback =
ChildProcessCoordinationUnit::InitializeChildProcessCoordinationCallback;
class MockChildProcessCoordinationUnit : public ChildProcessCoordinationUnit {
public:
MOCK_METHOD(void,
InitializeChildProcessCoordination,
(uint64_t, InitializeChildProcessCoordinationCallback),
(override));
void Bind(mojo::PendingReceiver<ChildProcessCoordinationUnit> receiver) {
receiver_.Bind(std::move(receiver));
}
private:
mojo::Receiver<ChildProcessCoordinationUnit> receiver_{this};
};
using StrictMockChildProcessCoordinationUnit =
::testing::StrictMock<MockChildProcessCoordinationUnit>;
class ChildPerformanceCoordinatorTest : public ::testing::Test {
public:
void SetUp() override {
scenario_test_helper_ =
PerformanceScenarioTestHelper::CreateWithoutMapping();
ASSERT_TRUE(scenario_test_helper_);
}
// Initializes the ChildPerformanceCoordinator and waits for a mock
// ChildProcessCoordinationUnit to send it `global_region` and
// `process_region`.
void InitializeAndWaitForScenarioRegions(
base::ReadOnlySharedMemoryRegion global_region,
base::ReadOnlySharedMemoryRegion process_region) {
base::OnceClosure quit_closure = task_env_.QuitClosure();
StrictMockChildProcessCoordinationUnit mock_coordination_unit;
EXPECT_CALL(mock_coordination_unit,
InitializeChildProcessCoordination(_, _))
.WillOnce(Invoke(
[&](uint64_t, InitializeChildProcessCoordinationCallback callback) {
std::move(callback).Run(std::move(global_region),
std::move(process_region));
// `callback` will post to ChildPerformanceCoordinator. Quit the
// runloop after the posted task.
task_env_.GetMainThreadTaskRunner()->PostTask(
FROM_HERE, std::move(quit_closure));
}));
mock_coordination_unit.Bind(coordinator_.InitializeAndPassReceiver());
task_env_.RunUntilQuit();
}
PerformanceScenarioTestHelper& scenario_test_helper() {
return *scenario_test_helper_;
}
private:
base::test::TaskEnvironment task_env_;
std::unique_ptr<PerformanceScenarioTestHelper> scenario_test_helper_;
ChildPerformanceCoordinator coordinator_;
};
TEST_F(ChildPerformanceCoordinatorTest, NoScenarioRegion) {
InitializeAndWaitForScenarioRegions(base::ReadOnlySharedMemoryRegion(),
base::ReadOnlySharedMemoryRegion());
EXPECT_FALSE(performance_scenarios::GetScenarioMappingForScope(
ScenarioScope::kGlobal));
EXPECT_FALSE(performance_scenarios::GetScenarioMappingForScope(
ScenarioScope::kCurrentProcess));
}
TEST_F(ChildPerformanceCoordinatorTest, GlobalScenarioRegion) {
InitializeAndWaitForScenarioRegions(
scenario_test_helper().GetReadOnlyScenarioRegion(ScenarioScope::kGlobal),
base::ReadOnlySharedMemoryRegion());
EXPECT_TRUE(performance_scenarios::GetScenarioMappingForScope(
ScenarioScope::kGlobal));
EXPECT_FALSE(performance_scenarios::GetScenarioMappingForScope(
ScenarioScope::kCurrentProcess));
}
TEST_F(ChildPerformanceCoordinatorTest, ProcessScenarioRegion) {
InitializeAndWaitForScenarioRegions(
base::ReadOnlySharedMemoryRegion(),
scenario_test_helper().GetReadOnlyScenarioRegion(
ScenarioScope::kCurrentProcess));
EXPECT_FALSE(performance_scenarios::GetScenarioMappingForScope(
ScenarioScope::kGlobal));
EXPECT_TRUE(performance_scenarios::GetScenarioMappingForScope(
ScenarioScope::kCurrentProcess));
}
} // namespace
} // namespace content
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