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Issue 2192683002: Reland 2:Geolocation: move from content/browser to device/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Ignore size_t_to_int truncation warning Created 4 years, 4 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/browser/geolocation/location_arbitrator_impl.h"
6
7 #include <memory>
8
9 #include "base/bind.h"
10 #include "base/memory/ptr_util.h"
11 #include "content/browser/geolocation/fake_access_token_store.h"
12 #include "content/browser/geolocation/mock_location_provider.h"
13 #include "content/public/browser/geolocation_delegate.h"
14 #include "content/public/common/geoposition.h"
15 #include "content/test/test_content_browser_client.h"
16 #include "testing/gmock/include/gmock/gmock.h"
17 #include "testing/gtest/include/gtest/gtest.h"
18
19 using ::testing::NiceMock;
20
21 namespace content {
22
23 class MockLocationObserver {
24 public:
25 // Need a vtable for GMock.
26 virtual ~MockLocationObserver() {}
27 void InvalidateLastPosition() {
28 last_position_.latitude = 100;
29 last_position_.error_code = Geoposition::ERROR_CODE_NONE;
30 ASSERT_FALSE(last_position_.Validate());
31 }
32 // Delegate
33 void OnLocationUpdate(const Geoposition& position) {
34 last_position_ = position;
35 }
36
37 Geoposition last_position_;
38 };
39
40 double g_fake_time_now_secs = 1;
41
42 base::Time GetTimeNowForTest() {
43 return base::Time::FromDoubleT(g_fake_time_now_secs);
44 }
45
46 void AdvanceTimeNow(const base::TimeDelta& delta) {
47 g_fake_time_now_secs += delta.InSecondsF();
48 }
49
50 void SetPositionFix(MockLocationProvider* provider,
51 double latitude,
52 double longitude,
53 double accuracy) {
54 Geoposition position;
55 position.error_code = Geoposition::ERROR_CODE_NONE;
56 position.latitude = latitude;
57 position.longitude = longitude;
58 position.accuracy = accuracy;
59 position.timestamp = GetTimeNowForTest();
60 ASSERT_TRUE(position.Validate());
61 provider->HandlePositionChanged(position);
62 }
63
64 void SetReferencePosition(MockLocationProvider* provider) {
65 SetPositionFix(provider, 51.0, -0.1, 400);
66 }
67
68 namespace {
69
70 class FakeGeolocationDelegate : public GeolocationDelegate {
71 public:
72 FakeGeolocationDelegate() = default;
73
74 bool UseNetworkLocationProviders() override { return use_network_; }
75 void set_use_network(bool use_network) { use_network_ = use_network; }
76
77 std::unique_ptr<LocationProvider> OverrideSystemLocationProvider() override {
78 DCHECK(!mock_location_provider_);
79 mock_location_provider_ = new MockLocationProvider;
80 return base::WrapUnique(mock_location_provider_);
81 }
82
83 MockLocationProvider* mock_location_provider() const {
84 return mock_location_provider_;
85 }
86
87 private:
88 bool use_network_ = true;
89 MockLocationProvider* mock_location_provider_ = nullptr;
90
91 DISALLOW_COPY_AND_ASSIGN(FakeGeolocationDelegate);
92 };
93
94 } // namespace
95
96 class TestingLocationArbitrator : public LocationArbitratorImpl {
97 public:
98 TestingLocationArbitrator(
99 const LocationArbitratorImpl::LocationUpdateCallback& callback,
100 const scoped_refptr<AccessTokenStore>& access_token_store,
101 GeolocationDelegate* delegate)
102 : LocationArbitratorImpl(callback, delegate),
103 cell_(nullptr),
104 gps_(nullptr),
105 access_token_store_(access_token_store) {}
106
107 base::Time GetTimeNow() const override { return GetTimeNowForTest(); }
108
109 scoped_refptr<AccessTokenStore> NewAccessTokenStore() override {
110 return access_token_store_;
111 }
112
113 std::unique_ptr<LocationProvider> NewNetworkLocationProvider(
114 const scoped_refptr<AccessTokenStore>& access_token_store,
115 const scoped_refptr<net::URLRequestContextGetter>& context,
116 const GURL& url,
117 const base::string16& access_token) override {
118 cell_ = new MockLocationProvider;
119 return base::WrapUnique(cell_);
120 }
121
122 std::unique_ptr<LocationProvider> NewSystemLocationProvider() override {
123 gps_ = new MockLocationProvider;
124 return base::WrapUnique(gps_);
125 }
126
127 // Two location providers, with nice short names to make the tests more
128 // readable. Note |gps_| will only be set when there is a high accuracy
129 // observer registered (and |cell_| when there's at least one observer of any
130 // type).
131 // TODO(mvanouwerkerk): rename |cell_| to |network_location_provider_| and
132 // |gps_| to |gps_location_provider_|
133 MockLocationProvider* cell_;
134 MockLocationProvider* gps_;
135 const scoped_refptr<AccessTokenStore> access_token_store_;
136 };
137
138 class GeolocationLocationArbitratorTest : public testing::Test {
139 protected:
140 GeolocationLocationArbitratorTest()
141 : access_token_store_(new NiceMock<FakeAccessTokenStore>),
142 observer_(new MockLocationObserver),
143 delegate_(new GeolocationDelegate) {}
144
145 // Initializes |arbitrator_|, with the possibility of injecting a specific
146 // |delegate|, otherwise a default, no-op GeolocationDelegate is used.
147 void InitializeArbitrator(std::unique_ptr<GeolocationDelegate> delegate) {
148 if (delegate)
149 delegate_ = std::move(delegate);
150 const LocationArbitratorImpl::LocationUpdateCallback callback =
151 base::Bind(&MockLocationObserver::OnLocationUpdate,
152 base::Unretained(observer_.get()));
153 arbitrator_.reset(new TestingLocationArbitrator(
154 callback, access_token_store_, delegate_.get()));
155 }
156
157 // testing::Test
158 void TearDown() override {}
159
160 void CheckLastPositionInfo(double latitude,
161 double longitude,
162 double accuracy) {
163 Geoposition geoposition = observer_->last_position_;
164 EXPECT_TRUE(geoposition.Validate());
165 EXPECT_DOUBLE_EQ(latitude, geoposition.latitude);
166 EXPECT_DOUBLE_EQ(longitude, geoposition.longitude);
167 EXPECT_DOUBLE_EQ(accuracy, geoposition.accuracy);
168 }
169
170 base::TimeDelta SwitchOnFreshnessCliff() {
171 // Add 1, to ensure it meets any greater-than test.
172 return base::TimeDelta::FromMilliseconds(
173 LocationArbitratorImpl::kFixStaleTimeoutMilliseconds + 1);
174 }
175
176 MockLocationProvider* cell() {
177 return arbitrator_->cell_;
178 }
179
180 MockLocationProvider* gps() {
181 return arbitrator_->gps_;
182 }
183
184 const scoped_refptr<FakeAccessTokenStore> access_token_store_;
185 const std::unique_ptr<MockLocationObserver> observer_;
186 std::unique_ptr<TestingLocationArbitrator> arbitrator_;
187 std::unique_ptr<GeolocationDelegate> delegate_;
188 const base::MessageLoop loop_;
189 };
190
191 TEST_F(GeolocationLocationArbitratorTest, CreateDestroy) {
192 EXPECT_TRUE(access_token_store_.get());
193 InitializeArbitrator(nullptr);
194 EXPECT_TRUE(arbitrator_);
195 arbitrator_.reset();
196 SUCCEED();
197 }
198
199 TEST_F(GeolocationLocationArbitratorTest, OnPermissionGranted) {
200 InitializeArbitrator(nullptr);
201 EXPECT_FALSE(arbitrator_->HasPermissionBeenGranted());
202 arbitrator_->OnPermissionGranted();
203 EXPECT_TRUE(arbitrator_->HasPermissionBeenGranted());
204 // Can't check the provider has been notified without going through the
205 // motions to create the provider (see next test).
206 EXPECT_FALSE(cell());
207 EXPECT_FALSE(gps());
208 }
209
210 TEST_F(GeolocationLocationArbitratorTest, NormalUsage) {
211 InitializeArbitrator(nullptr);
212 ASSERT_TRUE(access_token_store_.get());
213 ASSERT_TRUE(arbitrator_);
214
215 EXPECT_FALSE(cell());
216 EXPECT_FALSE(gps());
217 arbitrator_->StartProviders(false);
218
219 EXPECT_TRUE(access_token_store_->access_token_map_.empty());
220
221 access_token_store_->NotifyDelegateTokensLoaded();
222 ASSERT_TRUE(cell());
223 EXPECT_TRUE(gps());
224 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY, cell()->state_);
225 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY, gps()->state_);
226 EXPECT_FALSE(observer_->last_position_.Validate());
227 EXPECT_EQ(Geoposition::ERROR_CODE_NONE,
228 observer_->last_position_.error_code);
229
230 SetReferencePosition(cell());
231
232 EXPECT_TRUE(observer_->last_position_.Validate() ||
233 observer_->last_position_.error_code !=
234 Geoposition::ERROR_CODE_NONE);
235 EXPECT_EQ(cell()->position_.latitude,
236 observer_->last_position_.latitude);
237
238 EXPECT_FALSE(cell()->is_permission_granted_);
239 EXPECT_FALSE(arbitrator_->HasPermissionBeenGranted());
240 arbitrator_->OnPermissionGranted();
241 EXPECT_TRUE(arbitrator_->HasPermissionBeenGranted());
242 EXPECT_TRUE(cell()->is_permission_granted_);
243 }
244
245 TEST_F(GeolocationLocationArbitratorTest, CustomSystemProviderOnly) {
246 FakeGeolocationDelegate* fake_delegate = new FakeGeolocationDelegate;
247 fake_delegate->set_use_network(false);
248
249 std::unique_ptr<GeolocationDelegate> delegate(fake_delegate);
250 InitializeArbitrator(std::move(delegate));
251 ASSERT_TRUE(arbitrator_);
252
253 EXPECT_FALSE(cell());
254 EXPECT_FALSE(gps());
255 arbitrator_->StartProviders(false);
256
257 ASSERT_FALSE(cell());
258 EXPECT_FALSE(gps());
259 ASSERT_TRUE(fake_delegate->mock_location_provider());
260 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY,
261 fake_delegate->mock_location_provider()->state_);
262 EXPECT_FALSE(observer_->last_position_.Validate());
263 EXPECT_EQ(Geoposition::ERROR_CODE_NONE, observer_->last_position_.error_code);
264
265 SetReferencePosition(fake_delegate->mock_location_provider());
266
267 EXPECT_TRUE(observer_->last_position_.Validate() ||
268 observer_->last_position_.error_code !=
269 Geoposition::ERROR_CODE_NONE);
270 EXPECT_EQ(fake_delegate->mock_location_provider()->position_.latitude,
271 observer_->last_position_.latitude);
272
273 EXPECT_FALSE(fake_delegate->mock_location_provider()->is_permission_granted_);
274 EXPECT_FALSE(arbitrator_->HasPermissionBeenGranted());
275 arbitrator_->OnPermissionGranted();
276 EXPECT_TRUE(arbitrator_->HasPermissionBeenGranted());
277 EXPECT_TRUE(fake_delegate->mock_location_provider()->is_permission_granted_);
278 }
279
280 TEST_F(GeolocationLocationArbitratorTest,
281 CustomSystemAndDefaultNetworkProviders) {
282 FakeGeolocationDelegate* fake_delegate = new FakeGeolocationDelegate;
283 fake_delegate->set_use_network(true);
284
285 std::unique_ptr<GeolocationDelegate> delegate(fake_delegate);
286 InitializeArbitrator(std::move(delegate));
287 ASSERT_TRUE(arbitrator_);
288
289 EXPECT_FALSE(cell());
290 EXPECT_FALSE(gps());
291 arbitrator_->StartProviders(false);
292
293 EXPECT_TRUE(access_token_store_->access_token_map_.empty());
294
295 access_token_store_->NotifyDelegateTokensLoaded();
296
297 ASSERT_TRUE(cell());
298 EXPECT_FALSE(gps());
299 ASSERT_TRUE(fake_delegate->mock_location_provider());
300 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY,
301 fake_delegate->mock_location_provider()->state_);
302 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY, cell()->state_);
303 EXPECT_FALSE(observer_->last_position_.Validate());
304 EXPECT_EQ(Geoposition::ERROR_CODE_NONE, observer_->last_position_.error_code);
305
306 SetReferencePosition(cell());
307
308 EXPECT_TRUE(observer_->last_position_.Validate() ||
309 observer_->last_position_.error_code !=
310 Geoposition::ERROR_CODE_NONE);
311 EXPECT_EQ(cell()->position_.latitude, observer_->last_position_.latitude);
312
313 EXPECT_FALSE(cell()->is_permission_granted_);
314 EXPECT_FALSE(arbitrator_->HasPermissionBeenGranted());
315 arbitrator_->OnPermissionGranted();
316 EXPECT_TRUE(arbitrator_->HasPermissionBeenGranted());
317 EXPECT_TRUE(cell()->is_permission_granted_);
318 }
319
320 TEST_F(GeolocationLocationArbitratorTest, SetObserverOptions) {
321 InitializeArbitrator(nullptr);
322 arbitrator_->StartProviders(false);
323 access_token_store_->NotifyDelegateTokensLoaded();
324 ASSERT_TRUE(cell());
325 ASSERT_TRUE(gps());
326 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY, cell()->state_);
327 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY, gps()->state_);
328 SetReferencePosition(cell());
329 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY, cell()->state_);
330 EXPECT_EQ(MockLocationProvider::LOW_ACCURACY, gps()->state_);
331 arbitrator_->StartProviders(true);
332 EXPECT_EQ(MockLocationProvider::HIGH_ACCURACY, cell()->state_);
333 EXPECT_EQ(MockLocationProvider::HIGH_ACCURACY, gps()->state_);
334 }
335
336 TEST_F(GeolocationLocationArbitratorTest, Arbitration) {
337 InitializeArbitrator(nullptr);
338 arbitrator_->StartProviders(false);
339 access_token_store_->NotifyDelegateTokensLoaded();
340 ASSERT_TRUE(cell());
341 ASSERT_TRUE(gps());
342
343 SetPositionFix(cell(), 1, 2, 150);
344
345 // First position available
346 EXPECT_TRUE(observer_->last_position_.Validate());
347 CheckLastPositionInfo(1, 2, 150);
348
349 SetPositionFix(gps(), 3, 4, 50);
350
351 // More accurate fix available
352 CheckLastPositionInfo(3, 4, 50);
353
354 SetPositionFix(cell(), 5, 6, 150);
355
356 // New fix is available but it's less accurate, older fix should be kept.
357 CheckLastPositionInfo(3, 4, 50);
358
359 // Advance time, and notify once again
360 AdvanceTimeNow(SwitchOnFreshnessCliff());
361 cell()->HandlePositionChanged(cell()->position_);
362
363 // New fix is available, less accurate but fresher
364 CheckLastPositionInfo(5, 6, 150);
365
366 // Advance time, and set a low accuracy position
367 AdvanceTimeNow(SwitchOnFreshnessCliff());
368 SetPositionFix(cell(), 5.676731, 139.629385, 1000);
369 CheckLastPositionInfo(5.676731, 139.629385, 1000);
370
371 // 15 secs later, step outside. Switches to gps signal.
372 AdvanceTimeNow(base::TimeDelta::FromSeconds(15));
373 SetPositionFix(gps(), 3.5676457, 139.629198, 50);
374 CheckLastPositionInfo(3.5676457, 139.629198, 50);
375
376 // 5 mins later switch cells while walking. Stay on gps.
377 AdvanceTimeNow(base::TimeDelta::FromMinutes(5));
378 SetPositionFix(cell(), 3.567832, 139.634648, 300);
379 SetPositionFix(gps(), 3.5677675, 139.632314, 50);
380 CheckLastPositionInfo(3.5677675, 139.632314, 50);
381
382 // Ride train and gps signal degrades slightly. Stay on fresher gps
383 AdvanceTimeNow(base::TimeDelta::FromMinutes(5));
384 SetPositionFix(gps(), 3.5679026, 139.634777, 300);
385 CheckLastPositionInfo(3.5679026, 139.634777, 300);
386
387 // 14 minutes later
388 AdvanceTimeNow(base::TimeDelta::FromMinutes(14));
389
390 // GPS reading misses a beat, but don't switch to cell yet to avoid
391 // oscillating.
392 SetPositionFix(gps(), 3.5659005, 139.682579, 300);
393
394 AdvanceTimeNow(base::TimeDelta::FromSeconds(7));
395 SetPositionFix(cell(), 3.5689579, 139.691420, 1000);
396 CheckLastPositionInfo(3.5659005, 139.682579, 300);
397
398 // 1 minute later
399 AdvanceTimeNow(base::TimeDelta::FromMinutes(1));
400
401 // Enter tunnel. Stay on fresher gps for a moment.
402 SetPositionFix(cell(), 3.5657078, 139.68922, 300);
403 SetPositionFix(gps(), 3.5657104, 139.690341, 300);
404 CheckLastPositionInfo(3.5657104, 139.690341, 300);
405
406 // 2 minutes later
407 AdvanceTimeNow(base::TimeDelta::FromMinutes(2));
408 // Arrive in station. Cell moves but GPS is stale. Switch to fresher cell.
409 SetPositionFix(cell(), 3.5658700, 139.069979, 1000);
410 CheckLastPositionInfo(3.5658700, 139.069979, 1000);
411 }
412
413 TEST_F(GeolocationLocationArbitratorTest, TwoOneShotsIsNewPositionBetter) {
414 InitializeArbitrator(nullptr);
415 arbitrator_->StartProviders(false);
416 access_token_store_->NotifyDelegateTokensLoaded();
417 ASSERT_TRUE(cell());
418 ASSERT_TRUE(gps());
419
420 // Set the initial position.
421 SetPositionFix(cell(), 3, 139, 100);
422 CheckLastPositionInfo(3, 139, 100);
423
424 // Restart providers to simulate a one-shot request.
425 arbitrator_->StopProviders();
426
427 // To test 240956, perform a throwaway alloc.
428 // This convinces the allocator to put the providers in a new memory location.
429 std::unique_ptr<MockLocationProvider> dummy_provider(
430 new MockLocationProvider);
431
432 arbitrator_->StartProviders(false);
433 access_token_store_->NotifyDelegateTokensLoaded();
434
435 // Advance the time a short while to simulate successive calls.
436 AdvanceTimeNow(base::TimeDelta::FromMilliseconds(5));
437
438 // Update with a less accurate position to verify 240956.
439 SetPositionFix(cell(), 3, 139, 150);
440 CheckLastPositionInfo(3, 139, 150);
441 }
442
443 } // namespace content
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