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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/performance_manager/public/user_tuning/prefs.h"
#include <utility>
#include "base/json/values_util.h"
#include "base/values.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/testing_pref_service.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace performance_manager::user_tuning::prefs {
class MemorySaverModePrefMigrationTest : public ::testing::Test {
public:
void SetUp() override { RegisterLocalStatePrefs(pref_service_.registry()); }
TestingPrefServiceSimple pref_service_;
};
TEST_F(MemorySaverModePrefMigrationTest, NoChangeToUserSetNewPref) {
// The old pref is set by the user, but so is the new pref so no migration
// should happen.
pref_service_.SetBoolean(kMemorySaverModeEnabled, true);
pref_service_.SetInteger(kMemorySaverModeState,
static_cast<int>(MemorySaverModeState::kDisabled));
MigrateMemorySaverModePref(&pref_service_);
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kDisabled));
// The old pref should be reset.
EXPECT_TRUE(
pref_service_.FindPreference(kMemorySaverModeEnabled)->IsDefaultValue());
EXPECT_FALSE(pref_service_.GetBoolean(kMemorySaverModeEnabled));
}
TEST_F(MemorySaverModePrefMigrationTest, BothPrefsDefaultNoMigration) {
// Simulate that the default enum state value is not "disabled"
pref_service_.SetDefaultPrefValue(kMemorySaverModeState, base::Value(1));
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kDeprecated));
EXPECT_TRUE(
pref_service_.FindPreference(kMemorySaverModeState)->IsDefaultValue());
MigrateMemorySaverModePref(&pref_service_);
// Both prefs were in the default state, no migration happens
EXPECT_TRUE(
pref_service_.FindPreference(kMemorySaverModeState)->IsDefaultValue());
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kDeprecated));
}
TEST_F(MemorySaverModePrefMigrationTest,
MigrateDefaultNewPrefUserSetOldPrefEnabled) {
// Set the old pref as-if set by the user.
pref_service_.SetBoolean(kMemorySaverModeEnabled, true);
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kDisabled));
EXPECT_TRUE(
pref_service_.FindPreference(kMemorySaverModeState)->IsDefaultValue());
MigrateMemorySaverModePref(&pref_service_);
EXPECT_FALSE(
pref_service_.FindPreference(kMemorySaverModeState)->IsDefaultValue());
// "true" in the boolean pref maps to `2` (enabled on timer)
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kEnabled));
// The old pref should be reset.
EXPECT_TRUE(
pref_service_.FindPreference(kMemorySaverModeEnabled)->IsDefaultValue());
EXPECT_FALSE(pref_service_.GetBoolean(kMemorySaverModeEnabled));
}
TEST_F(MemorySaverModePrefMigrationTest,
MigrateDefaultNewPrefUserSetOldPrefDisabled) {
// Set the old pref as-if set by the user.
pref_service_.SetBoolean(kMemorySaverModeEnabled, false);
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kDisabled));
EXPECT_TRUE(
pref_service_.FindPreference(kMemorySaverModeState)->IsDefaultValue());
MigrateMemorySaverModePref(&pref_service_);
EXPECT_FALSE(
pref_service_.FindPreference(kMemorySaverModeState)->IsDefaultValue());
// "false" in the boolean pref maps to `0` (disabled)
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kDisabled));
// The old pref should be reset.
EXPECT_TRUE(
pref_service_.FindPreference(kMemorySaverModeEnabled)->IsDefaultValue());
EXPECT_FALSE(pref_service_.GetBoolean(kMemorySaverModeEnabled));
}
TEST_F(MemorySaverModePrefMigrationTest, MigrateMultiStateModePref) {
// Set the old pref as-if set by the user.
pref_service_.SetInteger(kMemorySaverModeState,
static_cast<int>(MemorySaverModeState::kDeprecated));
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kDeprecated));
MigrateMultiStateMemorySaverModePref(&pref_service_);
EXPECT_EQ(pref_service_.GetInteger(kMemorySaverModeState),
static_cast<int>(MemorySaverModeState::kEnabled));
}
} // namespace performance_manager::user_tuning::prefs
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