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Issue 189263013: Move extensions storage API implementation to src/extensions (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase (move_storage) Created 6 years, 9 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 "base/bind.h"
6 #include "base/file_util.h"
7 #include "base/files/scoped_temp_dir.h"
8 #include "base/memory/scoped_ptr.h"
9 #include "base/message_loop/message_loop.h"
10 #include "base/strings/stringprintf.h"
11 #include "chrome/browser/chrome_notification_types.h"
12 #include "chrome/browser/extensions/api/storage/leveldb_settings_storage_factory .h"
13 #include "chrome/browser/extensions/api/storage/settings_frontend.h"
14 #include "chrome/browser/extensions/api/storage/settings_test_util.h"
15 #include "content/public/test/test_browser_thread.h"
16 #include "extensions/browser/api/storage/settings_namespace.h"
17 #include "extensions/browser/value_store/value_store.h"
18 #include "testing/gtest/include/gtest/gtest.h"
19
20 using content::BrowserThread;
21
22 namespace extensions {
23
24 namespace settings = settings_namespace;
25 namespace util = settings_test_util;
26
27 namespace {
28
29 // To save typing ValueStore::DEFAULTS everywhere.
30 const ValueStore::WriteOptions DEFAULTS = ValueStore::DEFAULTS;
31
32 // Creates a kilobyte of data.
33 scoped_ptr<base::Value> CreateKilobyte() {
34 std::string kilobyte_string;
35 for (int i = 0; i < 1024; ++i) {
36 kilobyte_string += "a";
37 }
38 return scoped_ptr<base::Value>(new base::StringValue(kilobyte_string));
39 }
40
41 // Creates a megabyte of data.
42 scoped_ptr<base::Value> CreateMegabyte() {
43 base::ListValue* megabyte = new base::ListValue();
44 for (int i = 0; i < 1000; ++i) {
45 megabyte->Append(CreateKilobyte().release());
46 }
47 return scoped_ptr<base::Value>(megabyte);
48 }
49
50 } // namespace
51
52 class ExtensionSettingsFrontendTest : public testing::Test {
53 public:
54 ExtensionSettingsFrontendTest()
55 : storage_factory_(new util::ScopedSettingsStorageFactory()),
56 ui_thread_(BrowserThread::UI, base::MessageLoop::current()),
57 file_thread_(BrowserThread::FILE, base::MessageLoop::current()) {}
58
59 virtual void SetUp() OVERRIDE {
60 ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
61 profile_.reset(new util::MockProfile(temp_dir_.path()));
62 ResetFrontend();
63 }
64
65 virtual void TearDown() OVERRIDE {
66 frontend_.reset();
67 profile_.reset();
68 // Execute any pending deletion tasks.
69 message_loop_.RunUntilIdle();
70 }
71
72 protected:
73 Profile* profile() { return profile_.get(); }
74
75 void ResetFrontend() {
76 storage_factory_->Reset(new LeveldbSettingsStorageFactory());
77 frontend_.reset(
78 SettingsFrontend::CreateForTesting(storage_factory_, profile_.get()));
79 }
80
81 base::ScopedTempDir temp_dir_;
82 scoped_ptr<util::MockProfile> profile_;
83 scoped_ptr<SettingsFrontend> frontend_;
84 scoped_refptr<util::ScopedSettingsStorageFactory> storage_factory_;
85
86 private:
87 base::MessageLoop message_loop_;
88 content::TestBrowserThread ui_thread_;
89 content::TestBrowserThread file_thread_;
90 };
91
92 // Get a semblance of coverage for both extension and app settings by
93 // alternating in each test.
94 // TODO(kalman): explicitly test the two interact correctly.
95
96 // Tests that the frontend is set up correctly.
97 TEST_F(ExtensionSettingsFrontendTest, Basics) {
98 // Local storage is always enabled.
99 EXPECT_TRUE(frontend_->IsStorageEnabled(settings::LOCAL));
100 EXPECT_TRUE(frontend_->GetValueStoreCache(settings::LOCAL));
101
102 // Invalid storage areas are not available.
103 EXPECT_FALSE(frontend_->IsStorageEnabled(settings::INVALID));
104 EXPECT_FALSE(frontend_->GetValueStoreCache(settings::INVALID));
105 }
106
107 TEST_F(ExtensionSettingsFrontendTest, SettingsPreservedAcrossReconstruction) {
108 const std::string id = "ext";
109 scoped_refptr<const Extension> extension =
110 util::AddExtensionWithId(profile(), id, Manifest::TYPE_EXTENSION);
111
112 ValueStore* storage = util::GetStorage(extension, frontend_.get());
113
114 // The correctness of Get/Set/Remove/Clear is tested elsewhere so no need to
115 // be too rigorous.
116 {
117 base::StringValue bar("bar");
118 ValueStore::WriteResult result = storage->Set(DEFAULTS, "foo", bar);
119 ASSERT_FALSE(result->HasError());
120 }
121
122 {
123 ValueStore::ReadResult result = storage->Get();
124 ASSERT_FALSE(result->HasError());
125 EXPECT_FALSE(result->settings().empty());
126 }
127
128 ResetFrontend();
129 storage = util::GetStorage(extension, frontend_.get());
130
131 {
132 ValueStore::ReadResult result = storage->Get();
133 ASSERT_FALSE(result->HasError());
134 EXPECT_FALSE(result->settings().empty());
135 }
136 }
137
138 TEST_F(ExtensionSettingsFrontendTest, SettingsClearedOnUninstall) {
139 const std::string id = "ext";
140 scoped_refptr<const Extension> extension = util::AddExtensionWithId(
141 profile(), id, Manifest::TYPE_LEGACY_PACKAGED_APP);
142
143 ValueStore* storage = util::GetStorage(extension, frontend_.get());
144
145 {
146 base::StringValue bar("bar");
147 ValueStore::WriteResult result = storage->Set(DEFAULTS, "foo", bar);
148 ASSERT_FALSE(result->HasError());
149 }
150
151 // This would be triggered by extension uninstall via a DataDeleter.
152 frontend_->DeleteStorageSoon(id);
153 base::MessageLoop::current()->RunUntilIdle();
154
155 // The storage area may no longer be valid post-uninstall, so re-request.
156 storage = util::GetStorage(extension, frontend_.get());
157 {
158 ValueStore::ReadResult result = storage->Get();
159 ASSERT_FALSE(result->HasError());
160 EXPECT_TRUE(result->settings().empty());
161 }
162 }
163
164 TEST_F(ExtensionSettingsFrontendTest, LeveldbDatabaseDeletedFromDiskOnClear) {
165 const std::string id = "ext";
166 scoped_refptr<const Extension> extension =
167 util::AddExtensionWithId(profile(), id, Manifest::TYPE_EXTENSION);
168
169 ValueStore* storage = util::GetStorage(extension, frontend_.get());
170
171 {
172 base::StringValue bar("bar");
173 ValueStore::WriteResult result = storage->Set(DEFAULTS, "foo", bar);
174 ASSERT_FALSE(result->HasError());
175 EXPECT_TRUE(base::PathExists(temp_dir_.path()));
176 }
177
178 // Should need to both clear the database and delete the frontend for the
179 // leveldb database to be deleted from disk.
180 {
181 ValueStore::WriteResult result = storage->Clear();
182 ASSERT_FALSE(result->HasError());
183 EXPECT_TRUE(base::PathExists(temp_dir_.path()));
184 }
185
186 frontend_.reset();
187 base::MessageLoop::current()->RunUntilIdle();
188 // TODO(kalman): Figure out why this fails, despite appearing to work.
189 // Leaving this commented out rather than disabling the whole test so that the
190 // deletion code paths are at least exercised.
191 //EXPECT_FALSE(base::PathExists(temp_dir_.path()));
192 }
193
194 // Disabled (slow), http://crbug.com/322751 .
195 TEST_F(ExtensionSettingsFrontendTest,
196 DISABLED_QuotaLimitsEnforcedCorrectlyForSyncAndLocal) {
197 const std::string id = "ext";
198 scoped_refptr<const Extension> extension =
199 util::AddExtensionWithId(profile(), id, Manifest::TYPE_EXTENSION);
200
201 ValueStore* sync_storage =
202 util::GetStorage(extension, settings::SYNC, frontend_.get());
203 ValueStore* local_storage =
204 util::GetStorage(extension, settings::LOCAL, frontend_.get());
205
206 // Sync storage should run out after ~100K.
207 scoped_ptr<base::Value> kilobyte = CreateKilobyte();
208 for (int i = 0; i < 100; ++i) {
209 sync_storage->Set(
210 ValueStore::DEFAULTS, base::StringPrintf("%d", i), *kilobyte);
211 }
212
213 EXPECT_TRUE(sync_storage->Set(
214 ValueStore::DEFAULTS, "WillError", *kilobyte)->HasError());
215
216 // Local storage shouldn't run out after ~100K.
217 for (int i = 0; i < 100; ++i) {
218 local_storage->Set(
219 ValueStore::DEFAULTS, base::StringPrintf("%d", i), *kilobyte);
220 }
221
222 EXPECT_FALSE(local_storage->Set(
223 ValueStore::DEFAULTS, "WontError", *kilobyte)->HasError());
224
225 // Local storage should run out after ~5MB.
226 scoped_ptr<base::Value> megabyte = CreateMegabyte();
227 for (int i = 0; i < 5; ++i) {
228 local_storage->Set(
229 ValueStore::DEFAULTS, base::StringPrintf("%d", i), *megabyte);
230 }
231
232 EXPECT_TRUE(local_storage->Set(
233 ValueStore::DEFAULTS, "WillError", *megabyte)->HasError());
234 }
235
236 // In other tests, we assume that the result of GetStorage is a pointer to the
237 // a Storage owned by a Frontend object, but for the unlimitedStorage case, this
238 // might not be true. So, write the tests in a "callback" style.
239 // We should really rewrite all tests to be asynchronous in this way.
240
241 static void UnlimitedSyncStorageTestCallback(ValueStore* sync_storage) {
242 // Sync storage should still run out after ~100K; the unlimitedStorage
243 // permission can't apply to sync.
244 scoped_ptr<base::Value> kilobyte = CreateKilobyte();
245 for (int i = 0; i < 100; ++i) {
246 sync_storage->Set(
247 ValueStore::DEFAULTS, base::StringPrintf("%d", i), *kilobyte);
248 }
249
250 EXPECT_TRUE(sync_storage->Set(
251 ValueStore::DEFAULTS, "WillError", *kilobyte)->HasError());
252 }
253
254 static void UnlimitedLocalStorageTestCallback(ValueStore* local_storage) {
255 // Local storage should never run out.
256 scoped_ptr<base::Value> megabyte = CreateMegabyte();
257 for (int i = 0; i < 7; ++i) {
258 local_storage->Set(
259 ValueStore::DEFAULTS, base::StringPrintf("%d", i), *megabyte);
260 }
261
262 EXPECT_FALSE(local_storage->Set(
263 ValueStore::DEFAULTS, "WontError", *megabyte)->HasError());
264 }
265
266 #if defined(OS_WIN)
267 // See: http://crbug.com/227296
268 #define MAYBE_UnlimitedStorageForLocalButNotSync \
269 DISABLED_UnlimitedStorageForLocalButNotSync
270 #else
271 #define MAYBE_UnlimitedStorageForLocalButNotSync \
272 UnlimitedStorageForLocalButNotSync
273 #endif
274
275 TEST_F(ExtensionSettingsFrontendTest,
276 MAYBE_UnlimitedStorageForLocalButNotSync) {
277 const std::string id = "ext";
278 std::set<std::string> permissions;
279 permissions.insert("unlimitedStorage");
280 scoped_refptr<const Extension> extension =
281 util::AddExtensionWithIdAndPermissions(
282 profile(), id, Manifest::TYPE_EXTENSION, permissions);
283
284 frontend_->RunWithStorage(
285 extension, settings::SYNC, base::Bind(&UnlimitedSyncStorageTestCallback));
286 frontend_->RunWithStorage(extension,
287 settings::LOCAL,
288 base::Bind(&UnlimitedLocalStorageTestCallback));
289
290 base::MessageLoop::current()->RunUntilIdle();
291 }
292
293 } // namespace extensions
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