[fsp] Separate logic for saving/restoring state to a separate class.

chrome/browser/chromeos/file_system_provider/registry_unittest.cc

+// Copyright 2014 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 "chrome/browser/chromeos/file_system_provider/registry.h"
+
+#include <string>
+#include <vector>
+
+#include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
+#include "chrome/browser/chromeos/file_system_provider/registry.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/testing_browser_process.h"
+#include "chrome/test/base/testing_pref_service_syncable.h"
+#include "chrome/test/base/testing_profile.h"
+#include "chrome/test/base/testing_profile_manager.h"
+#include "components/user_prefs/user_prefs.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace chromeos {
+namespace file_system_provider {
+namespace {
+
+const char kExtensionId[] = "mbflcebpggnecokmikipoihdbecnjfoj";
+const char kDisplayName[] = "Camera Pictures";
+
+// The dot in the file system ID is there in order to check that saving to
+// preferences works correctly. File System ID is used as a key in
+// a base::DictionaryValue, so it has to be stored without path expansion.
+const char kFileSystemId[] = "camera/pictures/id .!@#$%^&*()_+";
+
+// Stores a provided file system information in preferences together with a
+// fake observed entry.
+void RememberFakeFileSystem(TestingProfile* profile,
+                            const std::string& extension_id,
+                            const std::string& file_system_id,
+                            const std::string& display_name,
+                            bool writable,
+                            bool supports_notify_tag,
+                            const ObservedEntry& observed_entry) {
+  TestingPrefServiceSyncable* const pref_service =
+      profile->GetTestingPrefService();
+  ASSERT_TRUE(pref_service);
+
+  base::DictionaryValue extensions;
+  base::DictionaryValue* const file_systems = new base::DictionaryValue();
+  base::DictionaryValue* const file_system = new base::DictionaryValue();
+  file_system->SetStringWithoutPathExpansion(kPrefKeyFileSystemId,
+                                             kFileSystemId);
+  file_system->SetStringWithoutPathExpansion(kPrefKeyDisplayName, kDisplayName);
+  file_system->SetBooleanWithoutPathExpansion(kPrefKeyWritable, writable);
+  file_system->SetBooleanWithoutPathExpansion(kPrefKeySupportsNotifyTag,
+                                              supports_notify_tag);
+  file_systems->SetWithoutPathExpansion(kFileSystemId, file_system);
+  extensions.SetWithoutPathExpansion(kExtensionId, file_systems);
+
+  // Remember observed entries.
+  base::DictionaryValue* const observed_entries = new base::DictionaryValue();
+  file_system->SetWithoutPathExpansion(kPrefKeyObservedEntries,
+                                       observed_entries);
+  base::DictionaryValue* const observed_entry_value =
+      new base::DictionaryValue();
+  observed_entries->SetWithoutPathExpansion(observed_entry.entry_path.value(),
+                                            observed_entry_value);
+  observed_entry_value->SetStringWithoutPathExpansion(
+      kPrefKeyObservedEntryEntryPath, observed_entry.entry_path.value());
+  observed_entry_value->SetBooleanWithoutPathExpansion(
+      kPrefKeyObservedEntryRecursive, observed_entry.recursive);
+  observed_entry_value->SetStringWithoutPathExpansion(
+      kPrefKeyObservedEntryLastTag, observed_entry.last_tag);
+
+  pref_service->Set(prefs::kFileSystemProviderMounted, extensions);
+}
+
+}  // namespace
+
+class FileSystemProviderRegistryTest : public testing::Test {
+ protected:
+  FileSystemProviderRegistryTest() : profile_(NULL) {}
+
+  virtual ~FileSystemProviderRegistryTest() {}
+
+  virtual void SetUp() override {
+    profile_manager_.reset(
+        new TestingProfileManager(TestingBrowserProcess::GetGlobal()));
+    ASSERT_TRUE(profile_manager_->SetUp());
+    profile_ = profile_manager_->CreateTestingProfile("test-user@example.com");
+    registry_.reset(new Registry(profile_));
+    fake_observed_entry_.entry_path =
+        base::FilePath(FILE_PATH_LITERAL("/a/b/c"));
+    fake_observed_entry_.recursive = true;
+    fake_observed_entry_.last_tag = "hello-world";
+  }
+
+  content::TestBrowserThreadBundle thread_bundle_;
+  scoped_ptr<TestingProfileManager> profile_manager_;
+  TestingProfile* profile_;
+  scoped_ptr<RegistryInterface> registry_;
+  ObservedEntry fake_observed_entry_;
+};
+
+TEST_F(FileSystemProviderRegistryTest, RestoreFileSystems) {
+  // Create a fake entry in the preferences.
+  RememberFakeFileSystem(profile_,
+                         kExtensionId,
+                         kFileSystemId,
+                         kDisplayName,
+                         true /* writable */,
+                         true /* supports_notify_tag */,
+                         fake_observed_entry_);
+
+  scoped_ptr<RegistryInterface::RestoredFileSystems> restored_file_systems =
+      registry_->RestoreFileSystems(kExtensionId);
+
+  ASSERT_EQ(1u, restored_file_systems->size());
+  const RegistryInterface::RestoredFileSystem& restored_file_system =
+      restored_file_systems->at(0);
+  EXPECT_EQ(kExtensionId, restored_file_system.extension_id);
+  EXPECT_EQ(kFileSystemId, restored_file_system.options.file_system_id);
+  EXPECT_EQ(kDisplayName, restored_file_system.options.display_name);
+  EXPECT_TRUE(restored_file_system.options.writable);
+  EXPECT_TRUE(restored_file_system.options.supports_notify_tag);
+
+  ASSERT_EQ(1u, restored_file_system.observed_entries.size());
+  const auto& restored_observed_entry_it =
+      restored_file_system.observed_entries.find(
+          fake_observed_entry_.entry_path);
+  ASSERT_NE(restored_file_system.observed_entries.end(),
+            restored_observed_entry_it);
+
+  EXPECT_EQ(fake_observed_entry_.entry_path,
+            restored_observed_entry_it->second.entry_path);
+  EXPECT_EQ(fake_observed_entry_.recursive,
+            restored_observed_entry_it->second.recursive);
+  EXPECT_EQ(fake_observed_entry_.last_tag,
+            restored_observed_entry_it->second.last_tag);
+}
+
+TEST_F(FileSystemProviderRegistryTest, RememberFileSystem) {
+  MountOptions options(kFileSystemId, kDisplayName);
+  options.writable = true;
+  options.supports_notify_tag = true;
+
+  ProvidedFileSystemInfo file_system_info(
+      kExtensionId, options, base::FilePath(FILE_PATH_LITERAL("/a/b/c")));
+
+  ObservedEntries observed_entries;
+  observed_entries[fake_observed_entry_.entry_path] = fake_observed_entry_;
+
+  registry_->RememberFileSystem(file_system_info, observed_entries);
+
+  TestingPrefServiceSyncable* const pref_service =
+      profile_->GetTestingPrefService();
+  ASSERT_TRUE(pref_service);
+
+  const base::DictionaryValue* const extensions =
+      pref_service->GetDictionary(prefs::kFileSystemProviderMounted);
+  ASSERT_TRUE(extensions);
+
+  const base::DictionaryValue* file_systems = NULL;
+  ASSERT_TRUE(extensions->GetDictionaryWithoutPathExpansion(kExtensionId,
+                                                            &file_systems));
+  EXPECT_EQ(1u, file_systems->size());
+
+  const base::Value* file_system_value = NULL;
+  const base::DictionaryValue* file_system = NULL;
+  ASSERT_TRUE(
+      file_systems->GetWithoutPathExpansion(kFileSystemId, &file_system_value));
+  ASSERT_TRUE(file_system_value->GetAsDictionary(&file_system));
+
+  std::string file_system_id;
+  EXPECT_TRUE(file_system->GetStringWithoutPathExpansion(kPrefKeyFileSystemId,
+                                                         &file_system_id));
+  EXPECT_EQ(kFileSystemId, file_system_id);
+
+  std::string display_name;
+  EXPECT_TRUE(file_system->GetStringWithoutPathExpansion(kPrefKeyDisplayName,
+                                                         &display_name));
+  EXPECT_EQ(kDisplayName, display_name);
+
+  bool writable = false;
+  EXPECT_TRUE(
+      file_system->GetBooleanWithoutPathExpansion(kPrefKeyWritable, &writable));
+  EXPECT_TRUE(writable);
+
+  bool supports_notify_tag = false;
+  EXPECT_TRUE(file_system->GetBooleanWithoutPathExpansion(
+      kPrefKeySupportsNotifyTag, &supports_notify_tag));
+  EXPECT_TRUE(supports_notify_tag);
+
+  const base::DictionaryValue* observed_entries_value = NULL;
+  ASSERT_TRUE(file_system->GetDictionaryWithoutPathExpansion(
+      kPrefKeyObservedEntries, &observed_entries_value));
+
+  const base::DictionaryValue* observed_entry = NULL;
+  ASSERT_TRUE(observed_entries_value->GetDictionaryWithoutPathExpansion(
+      fake_observed_entry_.entry_path.value(), &observed_entry));
+
+  std::string entry_path;
+  EXPECT_TRUE(observed_entry->GetStringWithoutPathExpansion(
+      kPrefKeyObservedEntryEntryPath, &entry_path));
+  EXPECT_EQ(fake_observed_entry_.entry_path.value(), entry_path);
+
+  bool recursive = false;
+  EXPECT_TRUE(observed_entry->GetBooleanWithoutPathExpansion(
+      kPrefKeyObservedEntryRecursive, &recursive));
+  EXPECT_EQ(fake_observed_entry_.recursive, recursive);
+
+  std::string last_tag;
+  EXPECT_TRUE(observed_entry->GetStringWithoutPathExpansion(
+      kPrefKeyObservedEntryLastTag, &last_tag));
+  EXPECT_EQ(fake_observed_entry_.last_tag, last_tag);
+}
+
+TEST_F(FileSystemProviderRegistryTest, ForgetFileSystem) {
+  // Create a fake file systems in the preferences.
+  RememberFakeFileSystem(profile_,
+                         kExtensionId,
+                         kFileSystemId,
+                         kDisplayName,
+                         true /* writable */,
+                         true /* supports_notify_tag */,
+                         fake_observed_entry_);
+
+  registry_->ForgetFileSystem(kExtensionId, kFileSystemId);
+
+  TestingPrefServiceSyncable* const pref_service =
+      profile_->GetTestingPrefService();
+  ASSERT_TRUE(pref_service);
+
+  const base::DictionaryValue* const extensions =
+      pref_service->GetDictionary(prefs::kFileSystemProviderMounted);
+  ASSERT_TRUE(extensions);
+
+  const base::DictionaryValue* file_systems = NULL;
+  EXPECT_FALSE(extensions->GetDictionaryWithoutPathExpansion(kExtensionId,
+                                                             &file_systems));
+}
+
+TEST_F(FileSystemProviderRegistryTest, UpdateObservedEntryTag) {
+  MountOptions options(kFileSystemId, kDisplayName);
+  options.writable = true;
+  options.supports_notify_tag = true;
+
+  ProvidedFileSystemInfo file_system_info(
+      kExtensionId, options, base::FilePath(FILE_PATH_LITERAL("/a/b/c")));
+
+  ObservedEntries observed_entries;
+  observed_entries[fake_observed_entry_.entry_path] = fake_observed_entry_;
+
+  registry_->RememberFileSystem(file_system_info, observed_entries);
+
+  fake_observed_entry_.last_tag = "updated-tag";
+  registry_->UpdateObservedEntryTag(file_system_info, fake_observed_entry_);
+
+  TestingPrefServiceSyncable* const pref_service =
+      profile_->GetTestingPrefService();
+  ASSERT_TRUE(pref_service);
+
+  const base::DictionaryValue* const extensions =
+      pref_service->GetDictionary(prefs::kFileSystemProviderMounted);
+  ASSERT_TRUE(extensions);
+
+  const base::DictionaryValue* file_systems = NULL;
+  ASSERT_TRUE(extensions->GetDictionaryWithoutPathExpansion(kExtensionId,
+                                                            &file_systems));
+  EXPECT_EQ(1u, file_systems->size());
+
+  const base::Value* file_system_value = NULL;
+  const base::DictionaryValue* file_system = NULL;
+  ASSERT_TRUE(
+      file_systems->GetWithoutPathExpansion(kFileSystemId, &file_system_value));
+  ASSERT_TRUE(file_system_value->GetAsDictionary(&file_system));
+
+  std::string file_system_id;
+  EXPECT_TRUE(file_system->GetStringWithoutPathExpansion(kPrefKeyFileSystemId,
+                                                         &file_system_id));
+  EXPECT_EQ(kFileSystemId, file_system_id);
+
+  std::string display_name;
+  EXPECT_TRUE(file_system->GetStringWithoutPathExpansion(kPrefKeyDisplayName,
+                                                         &display_name));
+  EXPECT_EQ(kDisplayName, display_name);
+
+  bool writable = false;
+  EXPECT_TRUE(
+      file_system->GetBooleanWithoutPathExpansion(kPrefKeyWritable, &writable));
+  EXPECT_TRUE(writable);
+
+  bool supports_notify_tag = false;
+  EXPECT_TRUE(file_system->GetBooleanWithoutPathExpansion(
+      kPrefKeySupportsNotifyTag, &supports_notify_tag));
+  EXPECT_TRUE(supports_notify_tag);
+
+  const base::DictionaryValue* observed_entries_value = NULL;
+  ASSERT_TRUE(file_system->GetDictionaryWithoutPathExpansion(
+      kPrefKeyObservedEntries, &observed_entries_value));
+
+  const base::DictionaryValue* observed_entry = NULL;
+  ASSERT_TRUE(observed_entries_value->GetDictionaryWithoutPathExpansion(
+      fake_observed_entry_.entry_path.value(), &observed_entry));
+
+  std::string entry_path;
+  EXPECT_TRUE(observed_entry->GetStringWithoutPathExpansion(
+      kPrefKeyObservedEntryEntryPath, &entry_path));
+  EXPECT_EQ(fake_observed_entry_.entry_path.value(), entry_path);
+
+  bool recursive = false;
+  EXPECT_TRUE(observed_entry->GetBooleanWithoutPathExpansion(
+      kPrefKeyObservedEntryRecursive, &recursive));
+  EXPECT_EQ(fake_observed_entry_.recursive, recursive);
+
+  std::string last_tag;
+  EXPECT_TRUE(observed_entry->GetStringWithoutPathExpansion(
+      kPrefKeyObservedEntryLastTag, &last_tag));
+  EXPECT_EQ(fake_observed_entry_.last_tag, last_tag);
+}
+
+}  // namespace file_system_provider
+}  // namespace chromeos