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Side by Side Diff: services/preferences/public/cpp/tests/pref_client_store_unittest.cc

Issue 2778733003: Pref service: delete old implementation (Closed)
Patch Set: Fix missed merge Created 3 years, 8 months ago
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1 // Copyright 2016 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 "services/preferences/public/cpp/pref_client_store.h"
6
7 #include "base/macros.h"
8 #include "base/memory/ptr_util.h"
9 #include "base/message_loop/message_loop.h"
10 #include "base/run_loop.h"
11 #include "base/values.h"
12 #include "components/prefs/pref_store_observer_mock.h"
13 #include "services/preferences/public/interfaces/preferences.mojom.h"
14 #include "testing/gtest/include/gtest/gtest.h"
15
16 namespace {
17
18 // Test implmentation of prefs::mojom::PreferenceManager which simply tracks
19 // calls. Allows for testing to be done in process, without mojo IPC.
20 class TestPreferenceService : public prefs::mojom::PreferencesService {
21 public:
22 TestPreferenceService(
23 mojo::InterfaceRequest<prefs::mojom::PreferencesService> request)
24 : set_preferences_called_(false), binding_(this, std::move(request)) {}
25 ~TestPreferenceService() override {}
26
27 const std::set<std::string>& last_preference_set() {
28 return last_preference_set_;
29 }
30 bool set_preferences_called() { return set_preferences_called_; }
31
32 // prefs::mojom::TestPreferenceService:
33 void SetPreferences(
34 std::unique_ptr<base::DictionaryValue> preferences) override;
35 void Subscribe(const std::vector<std::string>& preferences) override;
36
37 private:
38 std::set<std::string> last_preference_set_;
39 bool set_preferences_called_;
40 mojo::Binding<prefs::mojom::PreferencesService> binding_;
41
42 DISALLOW_COPY_AND_ASSIGN(TestPreferenceService);
43 };
44
45 void TestPreferenceService::SetPreferences(
46 std::unique_ptr<base::DictionaryValue> preferences) {
47 set_preferences_called_ = true;
48 }
49
50 void TestPreferenceService::Subscribe(
51 const std::vector<std::string>& preferences) {
52 last_preference_set_.clear();
53 last_preference_set_.insert(preferences.begin(), preferences.end());
54 }
55
56 // Test implementation of prefs::mojom::PreferencesServiceFactory which simply
57 // creates the TestPreferenceService used for testing.
58 class TestPreferenceFactory : public prefs::mojom::PreferencesServiceFactory {
59 public:
60 TestPreferenceFactory(
61 mojo::InterfaceRequest<prefs::mojom::PreferencesServiceFactory> request)
62 : binding_(this, std::move(request)) {}
63 ~TestPreferenceFactory() override {}
64
65 TestPreferenceService* service() { return service_.get(); }
66
67 void Create(prefs::mojom::PreferencesServiceClientPtr observer,
68 prefs::mojom::PreferencesServiceRequest service) override;
69
70 private:
71 mojo::Binding<prefs::mojom::PreferencesServiceFactory> binding_;
72 std::unique_ptr<TestPreferenceService> service_;
73
74 DISALLOW_COPY_AND_ASSIGN(TestPreferenceFactory);
75 };
76
77 void TestPreferenceFactory::Create(
78 prefs::mojom::PreferencesServiceClientPtr observer,
79 prefs::mojom::PreferencesServiceRequest service) {
80 service_.reset(new TestPreferenceService(std::move(service)));
81 }
82
83 } // namespace
84
85 namespace preferences {
86
87 class PrefClientStoreTest : public testing::Test {
88 public:
89 PrefClientStoreTest() {}
90 ~PrefClientStoreTest() override {}
91
92 TestPreferenceService* service() { return factory_->service(); }
93 PrefStoreObserverMock* observer() { return &observer_; }
94 PrefClientStore* store() { return store_.get(); }
95
96 bool Initialized() { return store_->initialized_; }
97 void OnPreferencesChanged(const base::DictionaryValue& preferences) {
98 store_->OnPreferencesChanged(preferences.CreateDeepCopy());
99 }
100
101 // testing::Test:
102 void SetUp() override;
103 void TearDown() override;
104
105 private:
106 scoped_refptr<PrefClientStore> store_;
107 prefs::mojom::PreferencesServiceFactoryPtr factory_proxy_;
108 std::unique_ptr<TestPreferenceFactory> factory_;
109 PrefStoreObserverMock observer_;
110 // Required by mojo binding code within PrefClientStore.
111 base::MessageLoop message_loop_;
112
113 DISALLOW_COPY_AND_ASSIGN(PrefClientStoreTest);
114 };
115
116 void PrefClientStoreTest::SetUp() {
117 factory_.reset(new TestPreferenceFactory(mojo::MakeRequest(&factory_proxy_)));
118 store_ = new PrefClientStore(std::move(factory_proxy_));
119 base::RunLoop().RunUntilIdle();
120 store_->AddObserver(&observer_);
121 }
122
123 void PrefClientStoreTest::TearDown() {
124 store_->RemoveObserver(&observer_);
125 }
126
127 // Tests that observers are notified upon the completion of initialization, and
128 // that values become available.
129 TEST_F(PrefClientStoreTest, Initialization) {
130 std::set<std::string> keys;
131 const std::string key("hey");
132 keys.insert(key);
133 store()->Subscribe(keys);
134
135 EXPECT_FALSE(Initialized());
136 EXPECT_FALSE(observer()->initialized);
137
138 const int kValue = 42;
139 base::Value pref(kValue);
140 base::DictionaryValue prefs;
141 prefs.Set(key, pref.CreateDeepCopy());
142
143 // PreferenceManager notifies of PreferencesChanged, completing
144 // initialization.
145 OnPreferencesChanged(prefs);
146 EXPECT_TRUE(Initialized());
147 EXPECT_TRUE(observer()->initialized);
148 EXPECT_TRUE(observer()->initialization_success);
149 observer()->VerifyAndResetChangedKey(key);
150
151 const base::Value* value = nullptr;
152 int actual_value;
153 EXPECT_TRUE(store()->GetValue(key, &value));
154 EXPECT_NE(nullptr, value);
155 EXPECT_TRUE(value->GetAsInteger(&actual_value));
156 EXPECT_EQ(kValue, actual_value);
157 EXPECT_FALSE(service()->set_preferences_called());
158 }
159
160 // Tests that values set silently are also set on the preference service, but
161 // that no observers are notified.
162 TEST_F(PrefClientStoreTest, SetValueSilently) {
163 std::set<std::string> keys;
164 const std::string key("hey");
165 keys.insert(key);
166 store()->Subscribe(keys);
167
168 const int kValue = 42;
169 base::Value pref(kValue);
170 store()->SetValueSilently(key, pref.CreateDeepCopy(), 0);
171 base::RunLoop().RunUntilIdle();
172 EXPECT_TRUE(service()->set_preferences_called());
173 EXPECT_TRUE(observer()->changed_keys.empty());
174 }
175
176 // Test that reporting values changed notifies observers, and the preference
177 // service.
178 TEST_F(PrefClientStoreTest, ReportValueChanged) {
179 std::set<std::string> keys;
180 const std::string key("hey");
181 keys.insert(key);
182 store()->Subscribe(keys);
183
184 const int kValue = 42;
185 base::Value pref(kValue);
186 base::DictionaryValue prefs;
187 prefs.Set(key, pref.CreateDeepCopy());
188 OnPreferencesChanged(prefs);
189 observer()->changed_keys.clear();
190
191 store()->ReportValueChanged(key, 0);
192 base::RunLoop().RunUntilIdle();
193 EXPECT_TRUE(service()->set_preferences_called());
194 observer()->VerifyAndResetChangedKey(key);
195 }
196
197 // Test that when initialized with multiple keys, that observers receive a
198 // notification for each key.
199 TEST_F(PrefClientStoreTest, MultipleKeyInitialization) {
200 std::set<std::string> keys;
201 const std::string key1("hey");
202 const std::string key2("listen");
203 keys.insert(key1);
204 keys.insert(key2);
205 store()->Subscribe(keys);
206
207 EXPECT_FALSE(Initialized());
208 EXPECT_FALSE(observer()->initialized);
209
210 const int kValue = 42;
211 base::Value pref1(kValue);
212 const std::string kStringValue("look");
213 base::Value pref2(kStringValue);
214
215 base::DictionaryValue prefs;
216 prefs.Set(key1, pref1.CreateDeepCopy());
217 prefs.Set(key2, pref2.CreateDeepCopy());
218
219 // The observer should be notified of all keys set.
220 OnPreferencesChanged(prefs);
221 EXPECT_TRUE(Initialized());
222 EXPECT_TRUE(observer()->initialized);
223 EXPECT_EQ(2u, observer()->changed_keys.size());
224 EXPECT_NE(observer()->changed_keys.end(),
225 std::find(observer()->changed_keys.begin(),
226 observer()->changed_keys.end(), key1));
227 EXPECT_NE(observer()->changed_keys.end(),
228 std::find(observer()->changed_keys.begin(),
229 observer()->changed_keys.end(), key2));
230 }
231
232 // Tests that if OnPreferencesChanged is received with invalid keys, that they
233 // are ignored.
234 TEST_F(PrefClientStoreTest, InvalidInitialization) {
235 std::set<std::string> keys;
236 const std::string key("hey");
237 keys.insert(key);
238 store()->Subscribe(keys);
239
240 const std::string kInvalidKey("look");
241 const int kValue = 42;
242 base::Value pref(kValue);
243 base::DictionaryValue prefs;
244 prefs.Set(kInvalidKey, pref.CreateDeepCopy());
245
246 OnPreferencesChanged(prefs);
247 EXPECT_TRUE(observer()->changed_keys.empty());
248 }
249
250 // Tests that when tracking preferences which nest other DictionaryValues, that
251 // modifications to the nested values properly notify the observer.
252 TEST_F(PrefClientStoreTest, WriteToNestedPrefs) {
253 std::set<std::string> keys;
254 const std::string key1("hey");
255 const std::string key2("listen");
256 keys.insert(key1);
257 keys.insert(key2);
258 store()->Subscribe(keys);
259
260 EXPECT_FALSE(Initialized());
261 EXPECT_FALSE(observer()->initialized);
262
263 const std::string sub_key1("look");
264 const int kValue1 = 42;
265 base::Value pref1(kValue1);
266 base::DictionaryValue sub_dictionary1;
267 sub_dictionary1.Set(sub_key1, pref1.CreateDeepCopy());
268
269 const std::string sub_key2("Watch out!\n");
270 const int kValue2 = 1337;
271 base::Value pref2(kValue2);
272 base::DictionaryValue sub_dictionary2;
273 sub_dictionary2.Set(sub_key2, pref2.CreateDeepCopy());
274
275 base::DictionaryValue prefs;
276 prefs.Set(key1, sub_dictionary1.CreateDeepCopy());
277 prefs.Set(key2, sub_dictionary2.CreateDeepCopy());
278
279 // Initialize with the nested dictionaries
280 OnPreferencesChanged(prefs);
281 EXPECT_TRUE(Initialized());
282 EXPECT_TRUE(observer()->initialized);
283 EXPECT_EQ(2u, observer()->changed_keys.size());
284 EXPECT_NE(observer()->changed_keys.end(),
285 std::find(observer()->changed_keys.begin(),
286 observer()->changed_keys.end(), key1));
287 EXPECT_NE(observer()->changed_keys.end(),
288 std::find(observer()->changed_keys.begin(),
289 observer()->changed_keys.end(), key2));
290
291 // Change an item within the nested dictionary
292 base::Value* result = nullptr;
293 store()->GetMutableValue(key1, &result);
294 EXPECT_EQ(base::Value::Type::DICTIONARY, result->GetType());
295 EXPECT_TRUE(result->Equals(&sub_dictionary1));
296
297 base::DictionaryValue* dictionary_result = nullptr;
298 result->GetAsDictionary(&dictionary_result);
299 EXPECT_NE(nullptr, dictionary_result);
300
301 const std::string sub_key3("????");
302 const int kValue3 = 9001;
303 base::Value pref3(kValue3);
304 dictionary_result->Set(sub_key3, pref3.CreateDeepCopy());
305
306 observer()->changed_keys.clear();
307 store()->ReportValueChanged(key1, 0);
308 EXPECT_EQ(1u, observer()->changed_keys.size());
309 }
310
311 // Tests that when tracking preferences that nest other DictionaryValues, that
312 // changes to the tracked keys properly notify the service and observer.
313 TEST_F(PrefClientStoreTest, UpdateOuterNestedPrefs) {
314 std::set<std::string> keys;
315 const std::string key1("hey");
316 const std::string key2("listen");
317 keys.insert(key1);
318 keys.insert(key2);
319 store()->Subscribe(keys);
320
321 EXPECT_FALSE(Initialized());
322 EXPECT_FALSE(observer()->initialized);
323
324 const std::string sub_key1("look");
325 const int kValue1 = 42;
326 base::Value pref1(kValue1);
327 base::DictionaryValue sub_dictionary1;
328 sub_dictionary1.Set(sub_key1, pref1.CreateDeepCopy());
329
330 const std::string sub_key2("Watch out!\n");
331 const int kValue2 = 1337;
332 base::Value pref2(kValue2);
333 base::DictionaryValue sub_dictionary2;
334 sub_dictionary2.Set(sub_key2, pref2.CreateDeepCopy());
335
336 base::DictionaryValue prefs;
337 prefs.Set(key1, sub_dictionary1.CreateDeepCopy());
338 prefs.Set(key2, sub_dictionary2.CreateDeepCopy());
339
340 // Initialize with the nested dictionaries
341 OnPreferencesChanged(prefs);
342 EXPECT_TRUE(Initialized());
343 EXPECT_TRUE(observer()->initialized);
344 EXPECT_EQ(2u, observer()->changed_keys.size());
345 EXPECT_NE(observer()->changed_keys.end(),
346 std::find(observer()->changed_keys.begin(),
347 observer()->changed_keys.end(), key1));
348 EXPECT_NE(observer()->changed_keys.end(),
349 std::find(observer()->changed_keys.begin(),
350 observer()->changed_keys.end(), key2));
351
352 observer()->changed_keys.clear();
353 const int kValue3 = 9001;
354 base::Value pref3(kValue3);
355 store()->SetValue(key1, pref3.CreateDeepCopy(), 0);
356 base::RunLoop().RunUntilIdle();
357 EXPECT_EQ(1u, observer()->changed_keys.size());
358 EXPECT_TRUE(service()->set_preferences_called());
359 }
360
361 // Tests that a PrefClientStore can subscribe multiple times to different
362 // keys.
363 TEST_F(PrefClientStoreTest, MultipleSubscriptions) {
364 std::set<std::string> keys1;
365 const std::string key1("hey");
366 keys1.insert(key1);
367 store()->Subscribe(keys1);
368 base::RunLoop().RunUntilIdle();
369 EXPECT_NE(service()->last_preference_set().end(),
370 service()->last_preference_set().find(key1));
371
372 std::set<std::string> keys2;
373 const std::string key2("listen");
374 keys2.insert(key2);
375 store()->Subscribe(keys2);
376 base::RunLoop().RunUntilIdle();
377 EXPECT_NE(service()->last_preference_set().end(),
378 service()->last_preference_set().find(key2));
379 }
380
381 // Tests that multiple PrefStore::Observers can be added to a PrefClientStore
382 // and that they are each notified of changes.
383 TEST_F(PrefClientStoreTest, MultipleObservers) {
384 PrefStoreObserverMock observer2;
385 store()->AddObserver(&observer2);
386
387 std::set<std::string> keys;
388 const std::string key("hey");
389 keys.insert(key);
390 store()->Subscribe(keys);
391
392 const int kValue = 42;
393 base::Value pref(kValue);
394 base::DictionaryValue prefs;
395 prefs.Set(key, pref.CreateDeepCopy());
396
397 // PreferenceManager notifies of PreferencesChanged, completing
398 // initialization.
399 OnPreferencesChanged(prefs);
400 EXPECT_TRUE(observer()->initialized);
401 EXPECT_TRUE(observer2.initialized);
402 EXPECT_TRUE(observer()->initialization_success);
403 EXPECT_TRUE(observer2.initialization_success);
404 observer()->VerifyAndResetChangedKey(key);
405 observer2.VerifyAndResetChangedKey(key);
406
407 store()->RemoveObserver(&observer2);
408 }
409
410 } // namespace preferences
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