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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 "ash/quick_pair/repository/fast_pair/device_address_map.h"
#include <optional>
#include "ash/quick_pair/common/device.h"
#include "ash/quick_pair/common/protocol.h"
#include "ash/shell.h"
#include "ash/test/ash_test_base.h"
#include "base/memory/scoped_refptr.h"
#include "base/strings/string_number_conversions.h"
#include "device/bluetooth/bluetooth_adapter_factory.h"
#include "device/bluetooth/test/mock_bluetooth_adapter.h"
#include "device/bluetooth/test/mock_bluetooth_device.h"
namespace {
constexpr char kTestModelId[] = "test_model_id";
constexpr char kTestClassicAddress[] = "test_classic_address";
constexpr char kTestClassicAddress2[] = "test_classic_address_2";
} // namespace
namespace ash::quick_pair {
// For convenience.
using ::testing::Return;
class DeviceAddressMapTest : public AshTestBase {
public:
DeviceAddressMapTest() {}
void SetUp() override {
AshTestBase::SetUp();
// Initialize device_ with no classic address.
device_ = base::MakeRefCounted<Device>(kTestModelId, "address",
Protocol::kFastPairInitial);
device_address_map_ = std::make_unique<DeviceAddressMap>();
}
protected:
scoped_refptr<Device> device_;
std::unique_ptr<DeviceAddressMap> device_address_map_;
};
TEST_F(DeviceAddressMapTest, SaveModelIdForDeviceValid) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
std::optional<const std::string> model_id =
device_address_map_->GetModelIdForMacAddress(kTestClassicAddress);
EXPECT_TRUE(model_id);
EXPECT_EQ(model_id.value(), kTestModelId);
}
TEST_F(DeviceAddressMapTest, SaveModelIdForDeviceInvalidDeviceNotFound) {
// Device has no classic address set.
EXPECT_FALSE(device_address_map_->SaveModelIdForDevice(device_));
std::optional<const std::string> model_id =
device_address_map_->GetModelIdForMacAddress(kTestClassicAddress);
EXPECT_FALSE(model_id);
}
TEST_F(DeviceAddressMapTest, PersistRecordsForDeviceValid) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// First, save the mac address to model ID records to memory.
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
// Validate that the ID records are persisted to prefs.
PrefService* local_state = Shell::Get()->local_state();
const base::Value::Dict& device_address_map_dict =
local_state->GetDict(DeviceAddressMap::kDeviceAddressMapPref);
const std::string* model_id =
device_address_map_dict.FindString(kTestClassicAddress);
EXPECT_TRUE(model_id);
EXPECT_EQ(*model_id, kTestModelId);
}
TEST_F(DeviceAddressMapTest, PersistRecordsForDeviceValidDoublePersist) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// First, save the mac address records to memory.
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
// When persisting a second time, should overwrite record and
// still return true.
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
}
TEST_F(DeviceAddressMapTest, PersistRecordsForDeviceInvalidNotSaved) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// Don't save the mac address record to memory.
EXPECT_FALSE(device_address_map_->PersistRecordsForDevice(device_));
}
TEST_F(DeviceAddressMapTest, EvictMacAddressRecordValid) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// First, persist the mac address record to disk.
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
EXPECT_TRUE(device_address_map_->EvictMacAddressRecord(kTestClassicAddress));
// Validate that the ID records are evicted from prefs.
PrefService* local_state = Shell::Get()->local_state();
const base::Value::Dict& device_address_map_dict =
local_state->GetDict(DeviceAddressMap::kDeviceAddressMapPref);
const std::string* model_id =
device_address_map_dict.FindString(kTestClassicAddress);
EXPECT_FALSE(model_id);
}
TEST_F(DeviceAddressMapTest, EvictMacAddressRecordInvalidDeviceAddress) {
// Don't save the mac address records to disk.
EXPECT_FALSE(device_address_map_->EvictMacAddressRecord(kTestClassicAddress));
}
TEST_F(DeviceAddressMapTest, EvictMacAddressRecordInvalidDoubleFree) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// First, persist the mac address records to disk.
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
EXPECT_TRUE(device_address_map_->EvictMacAddressRecord(kTestClassicAddress));
// The second evict should fail.
EXPECT_FALSE(device_address_map_->EvictMacAddressRecord(kTestClassicAddress));
}
TEST_F(DeviceAddressMapTest, GetModelIdForMacAddressValid) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
std::optional<const std::string> model_id =
device_address_map_->GetModelIdForMacAddress(kTestClassicAddress);
EXPECT_TRUE(model_id);
EXPECT_EQ(model_id.value(), kTestModelId);
}
TEST_F(DeviceAddressMapTest, GetModelIdForMacAddressInvalidUninitialized) {
// Don't initialize the dictionary with any results.
std::optional<const std::string> model_id =
device_address_map_->GetModelIdForMacAddress(kTestClassicAddress);
EXPECT_FALSE(model_id);
}
TEST_F(DeviceAddressMapTest, GetModelIdForMacAddressInvalidNotAdded) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
std::optional<const std::string> model_id =
device_address_map_->GetModelIdForMacAddress("not found id");
EXPECT_FALSE(model_id);
}
TEST_F(DeviceAddressMapTest, HasPersistedRecordsForModelIdTrueAfterPersist) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// First, persist the mac address records to disk.
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
EXPECT_TRUE(device_address_map_->HasPersistedRecordsForModelId(kTestModelId));
}
TEST_F(DeviceAddressMapTest,
HasPersistedRecordsForModelIdTrueAfterOneEviction) {
// Set a valid classic address and persist the mac address records to disk.
device_->set_classic_address(kTestClassicAddress);
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
// Set a different classic address, as if a second device with the samel model
// ID was paired, and persist the mac address records to disk.
device_->set_classic_address(kTestClassicAddress2);
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
// Evict one of the records that points to this model ID.
EXPECT_TRUE(device_address_map_->EvictMacAddressRecord(kTestClassicAddress));
// There is still one mac address to model ID for record for this model ID.
EXPECT_TRUE(device_address_map_->HasPersistedRecordsForModelId(kTestModelId));
}
TEST_F(DeviceAddressMapTest,
HasPersistedRecordsForModelIdFalseAfterAllEvictions) {
// Set a valid classic address and persist the mac address records to disk.
device_->set_classic_address(kTestClassicAddress);
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
// Set a different classic address, as if a second device with the samel model
// ID was paired, and persist the mac address records to disk.
device_->set_classic_address(kTestClassicAddress2);
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
// Evict both of the records that point to this model ID.
EXPECT_TRUE(device_address_map_->EvictMacAddressRecord(kTestClassicAddress));
EXPECT_TRUE(device_address_map_->EvictMacAddressRecord(kTestClassicAddress2));
// There are no more mac address to model ID records for this model ID.
EXPECT_FALSE(
device_address_map_->HasPersistedRecordsForModelId(kTestModelId));
}
TEST_F(DeviceAddressMapTest, HasPersistedRecordsForModelIdFalseNoPersist) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// Don't persist the mac address records to disk.
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_FALSE(
device_address_map_->HasPersistedRecordsForModelId(kTestModelId));
}
TEST_F(DeviceAddressMapTest, LoadPersistedIdRecordFromPrefs) {
// Set a valid classic address.
device_->set_classic_address(kTestClassicAddress);
// First, persist the mac address records to disk.
EXPECT_TRUE(device_address_map_->SaveModelIdForDevice(device_));
EXPECT_TRUE(device_address_map_->PersistRecordsForDevice(device_));
// A new/restarted DeviceAddressMap instance should load persisted ID records
// from prefs.
DeviceAddressMap new_device_address_map = DeviceAddressMap();
std::optional<const std::string> model_id =
new_device_address_map.GetModelIdForMacAddress(kTestClassicAddress);
EXPECT_TRUE(model_id);
EXPECT_EQ(model_id.value(), kTestModelId);
}
} // namespace ash::quick_pair
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