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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "services/device/geolocation/wifi_data_provider_common.h"
- #include <memory>
- #include "base/callback_helpers.h"
- #include "base/memory/raw_ptr.h"
- #include "base/run_loop.h"
- #include "base/strings/utf_string_conversions.h"
- #include "base/task/single_thread_task_runner.h"
- #include "base/test/task_environment.h"
- #include "base/threading/thread_task_runner_handle.h"
- #include "services/device/geolocation/wifi_data_provider_handle.h"
- #include "testing/gmock/include/gmock/gmock.h"
- #include "testing/gtest/include/gtest/gtest.h"
- using testing::_;
- using testing::AnyNumber;
- using testing::AtLeast;
- using testing::DoAll;
- using testing::Invoke;
- using testing::InvokeWithoutArgs;
- using testing::Return;
- using testing::SetArgPointee;
- using testing::WithArgs;
- namespace device {
- class MockWlanApi : public WifiDataProviderCommon::WlanApiInterface {
- public:
- MockWlanApi() {
- ON_CALL(*this, GetAccessPointData(_))
- .WillByDefault(DoAll(SetArgPointee<0>(data_out_), Return(true)));
- }
- MOCK_METHOD1(GetAccessPointData, bool(WifiData::AccessPointDataSet* data));
- private:
- WifiData::AccessPointDataSet data_out_;
- };
- class MockPollingPolicy : public WifiPollingPolicy {
- public:
- MockPollingPolicy() {
- ON_CALL(*this, InitialInterval()).WillByDefault(Return(0));
- ON_CALL(*this, PollingInterval()).WillByDefault(Return(1));
- ON_CALL(*this, NoWifiInterval()).WillByDefault(Return(1));
- // We are not interested in calls to UpdatePollingInterval() method.
- EXPECT_CALL(*this, UpdatePollingInterval(_)).Times(AnyNumber());
- }
- // WifiPollingPolicy implementation.
- MOCK_METHOD1(UpdatePollingInterval, void(bool));
- MOCK_METHOD0(InitialInterval, int());
- MOCK_METHOD0(PollingInterval, int());
- MOCK_METHOD0(NoWifiInterval, int());
- };
- class WifiDataProviderCommonWithMock : public WifiDataProviderCommon {
- public:
- WifiDataProviderCommonWithMock() : wlan_api_(new MockWlanApi) {}
- WifiDataProviderCommonWithMock(const WifiDataProviderCommonWithMock&) =
- delete;
- WifiDataProviderCommonWithMock& operator=(
- const WifiDataProviderCommonWithMock&) = delete;
- // WifiDataProviderCommon
- std::unique_ptr<WlanApiInterface> CreateWlanApi() override {
- return std::move(wlan_api_);
- }
- std::unique_ptr<WifiPollingPolicy> CreatePollingPolicy() override {
- auto policy = std::make_unique<MockPollingPolicy>();
- // Save a pointer to the MockPollingPolicy.
- polling_policy_ = policy.get();
- return std::move(policy);
- }
- std::unique_ptr<MockWlanApi> wlan_api_;
- raw_ptr<MockPollingPolicy> polling_policy_ = nullptr;
- private:
- ~WifiDataProviderCommonWithMock() override = default;
- };
- // Main test fixture
- class GeolocationWifiDataProviderCommonTest : public testing::Test {
- public:
- GeolocationWifiDataProviderCommonTest()
- : task_environment_(
- base::test::SingleThreadTaskEnvironment::MainThreadType::UI),
- wifi_data_callback_(base::DoNothing()) {}
- void TearDownProvider() {
- provider_->RemoveCallback(&wifi_data_callback_);
- provider_->StopDataProvider();
- provider_ = nullptr;
- wlan_api_ = nullptr;
- }
- // Some usage patterns cause the provider to be created and destroyed
- // frequently. Allow tests to simulate this behavior by recreating the
- // provider without resetting WifiPollingPolicy.
- void RecreateProvider() {
- if (provider_)
- TearDownProvider();
- provider_ = new WifiDataProviderCommonWithMock;
- provider_->AddCallback(&wifi_data_callback_);
- wlan_api_ = provider_->wlan_api_.get();
- // Initialize WifiPollingPolicy early so we can watch for calls to mocked
- // functions. Normally the policy is initialized in StartDataProvider.
- //
- // The policy should be initialized only once to ensure its state is
- // retained across restarts of the provider.
- if (!polling_policy_) {
- WifiPollingPolicy::Initialize(provider_->CreatePollingPolicy());
- polling_policy_ = provider_->polling_policy_;
- }
- }
- void SetUp() override { RecreateProvider(); }
- void TearDown() override {
- TearDownProvider();
- WifiPollingPolicy::Shutdown();
- polling_policy_ = nullptr;
- }
- protected:
- const base::test::SingleThreadTaskEnvironment task_environment_;
- WifiDataProviderHandle::WifiDataUpdateCallback wifi_data_callback_;
- scoped_refptr<WifiDataProviderCommonWithMock> provider_;
- raw_ptr<MockWlanApi> wlan_api_ = nullptr;
- raw_ptr<MockPollingPolicy> polling_policy_ = nullptr;
- };
- TEST_F(GeolocationWifiDataProviderCommonTest, CreateDestroy) {
- // Test fixture members were SetUp correctly.
- EXPECT_TRUE(provider_);
- EXPECT_TRUE(wlan_api_);
- EXPECT_TRUE(polling_policy_);
- }
- TEST_F(GeolocationWifiDataProviderCommonTest, NoWifi) {
- base::RunLoop run_loop;
- EXPECT_CALL(*polling_policy_, InitialInterval()).Times(1);
- EXPECT_CALL(*polling_policy_, NoWifiInterval()).Times(AtLeast(1));
- EXPECT_CALL(*wlan_api_, GetAccessPointData(_))
- .WillOnce(InvokeWithoutArgs([&run_loop]() {
- run_loop.Quit();
- return false;
- }));
- provider_->StartDataProvider();
- run_loop.Run();
- }
- TEST_F(GeolocationWifiDataProviderCommonTest, IntermittentWifi) {
- base::RunLoop run_loop;
- EXPECT_CALL(*polling_policy_, InitialInterval()).Times(1);
- EXPECT_CALL(*polling_policy_, PollingInterval()).Times(AtLeast(1));
- EXPECT_CALL(*polling_policy_, NoWifiInterval()).Times(1);
- EXPECT_CALL(*wlan_api_, GetAccessPointData(_))
- .WillOnce(Return(true))
- .WillOnce(InvokeWithoutArgs([&run_loop]() {
- run_loop.Quit();
- return false;
- }));
- provider_->StartDataProvider();
- run_loop.Run();
- }
- // This test runs StartDataProvider() and expects that GetAccessPointData() is
- // called. The retrieved WifiData is expected to be empty.
- TEST_F(GeolocationWifiDataProviderCommonTest, DoAnEmptyScan) {
- base::RunLoop run_loop;
- EXPECT_CALL(*polling_policy_, InitialInterval()).Times(1);
- EXPECT_CALL(*polling_policy_, PollingInterval()).Times(AtLeast(1));
- EXPECT_CALL(*wlan_api_, GetAccessPointData(_))
- .WillOnce(InvokeWithoutArgs([&run_loop]() {
- run_loop.Quit();
- return true;
- }));
- provider_->StartDataProvider();
- run_loop.Run();
- WifiData data;
- EXPECT_TRUE(provider_->GetData(&data));
- EXPECT_TRUE(data.access_point_data.empty());
- }
- // This test runs StartDataProvider() and expects that GetAccessPointData() is
- // called. Some mock WifiData is returned then and expected to be retrieved.
- TEST_F(GeolocationWifiDataProviderCommonTest, DoScanWithResults) {
- base::RunLoop run_loop;
- EXPECT_CALL(*polling_policy_, InitialInterval()).Times(1);
- EXPECT_CALL(*polling_policy_, PollingInterval()).Times(AtLeast(1));
- AccessPointData single_access_point;
- single_access_point.channel = 2;
- single_access_point.mac_address = u"00:11:22:33:44:55";
- single_access_point.radio_signal_strength = 4;
- single_access_point.signal_to_noise = 5;
- single_access_point.ssid = u"foossid";
- WifiData::AccessPointDataSet data_out({single_access_point});
- EXPECT_CALL(*wlan_api_, GetAccessPointData(_))
- .WillOnce(WithArgs<0>(
- Invoke([&data_out, &run_loop](WifiData::AccessPointDataSet* data) {
- *data = data_out;
- run_loop.Quit();
- return true;
- })));
- provider_->StartDataProvider();
- run_loop.Run();
- WifiData data;
- EXPECT_TRUE(provider_->GetData(&data));
- ASSERT_EQ(1u, data.access_point_data.size());
- EXPECT_EQ(single_access_point.ssid, data.access_point_data.begin()->ssid);
- }
- TEST_F(GeolocationWifiDataProviderCommonTest, DelayedByPolicy) {
- static const int kPollingIntervalMillis = 1000;
- base::RunLoop run_loop;
- EXPECT_CALL(*polling_policy_, InitialInterval())
- // Initial scan: no delay
- .WillOnce(Return(0))
- // Third scan (after recreating the provider): scheduled after a delay
- .WillOnce(Return(kPollingIntervalMillis));
- EXPECT_CALL(*polling_policy_, PollingInterval())
- // Second scan: scheduled after a delay
- .WillOnce(Return(kPollingIntervalMillis));
- // Simulate a successful scan that found no wifi APs.
- EXPECT_CALL(*wlan_api_, GetAccessPointData(_))
- .WillOnce(InvokeWithoutArgs([&run_loop]() {
- run_loop.Quit();
- return true;
- }));
- // The initial scan is scheduled with InitialInterval and should not be
- // delayed.
- provider_->StartDataProvider();
- EXPECT_FALSE(provider_->DelayedByPolicy());
- // Allow the pending call to DoWifiScanTask to proceed. This will fetch our
- // mock wifi AP data and mark the first scan complete. It will also schedule
- // a new scan to occur after PollingInterval.
- run_loop.Run();
- EXPECT_TRUE(provider_->DelayedByPolicy());
- // Destroy the provider and recreate it, which will schedule a new scan.
- // InitialInterval is used to schedule the new scan, but unlike the first
- // scan which was scheduled immediately, it will now incur a delay.
- RecreateProvider();
- provider_->StartDataProvider();
- EXPECT_TRUE(provider_->DelayedByPolicy());
- }
- } // namespace device
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