blob: 959007a4472ea0b80428ebc31a667a3101e4ba66 [file] [log] [blame]
// 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 "base/prefs/json_pref_store.h"
#include "base/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/path_service.h"
#include "base/string_number_conversions.h"
#include "base/string_util.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/threading/thread.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
const char kHomePage[] = "homepage";
class MockPrefStoreObserver : public PrefStore::Observer {
public:
MOCK_METHOD1(OnPrefValueChanged, void (const std::string&));
MOCK_METHOD1(OnInitializationCompleted, void (bool));
};
class MockReadErrorDelegate : public PersistentPrefStore::ReadErrorDelegate {
public:
MOCK_METHOD1(OnError, void(PersistentPrefStore::PrefReadError));
};
} // namespace
class JsonPrefStoreTest : public testing::Test {
protected:
virtual void SetUp() override {
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &data_dir_));
data_dir_ = data_dir_.AppendASCII("base");
data_dir_ = data_dir_.AppendASCII("prefs");
data_dir_ = data_dir_.AppendASCII("test");
data_dir_ = data_dir_.AppendASCII("data");
data_dir_ = data_dir_.AppendASCII("pref_service");
LOG(WARNING) << data_dir_.value().c_str();
ASSERT_TRUE(file_util::PathExists(data_dir_));
}
// The path to temporary directory used to contain the test operations.
base::ScopedTempDir temp_dir_;
// The path to the directory where the test data is stored.
FilePath data_dir_;
// A message loop that we can use as the file thread message loop.
MessageLoop message_loop_;
};
// Test fallback behavior for a nonexistent file.
TEST_F(JsonPrefStoreTest, NonExistentFile) {
FilePath bogus_input_file = data_dir_.AppendASCII("read.txt");
ASSERT_FALSE(file_util::PathExists(bogus_input_file));
scoped_refptr<JsonPrefStore> pref_store =
new JsonPrefStore(
bogus_input_file, message_loop_.message_loop_proxy());
EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_NO_FILE,
pref_store->ReadPrefs());
EXPECT_FALSE(pref_store->ReadOnly());
}
// Test fallback behavior for an invalid file.
TEST_F(JsonPrefStoreTest, InvalidFile) {
FilePath invalid_file_original = data_dir_.AppendASCII("invalid.json");
FilePath invalid_file = temp_dir_.path().AppendASCII("invalid.json");
ASSERT_TRUE(file_util::CopyFile(invalid_file_original, invalid_file));
scoped_refptr<JsonPrefStore> pref_store =
new JsonPrefStore(
invalid_file, message_loop_.message_loop_proxy());
EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_JSON_PARSE,
pref_store->ReadPrefs());
EXPECT_FALSE(pref_store->ReadOnly());
// The file should have been moved aside.
EXPECT_FALSE(file_util::PathExists(invalid_file));
FilePath moved_aside = temp_dir_.path().AppendASCII("invalid.bad");
EXPECT_TRUE(file_util::PathExists(moved_aside));
EXPECT_TRUE(file_util::TextContentsEqual(invalid_file_original,
moved_aside));
}
// This function is used to avoid code duplication while testing synchronous and
// asynchronous version of the JsonPrefStore loading.
void RunBasicJsonPrefStoreTest(JsonPrefStore* pref_store,
const FilePath& output_file,
const FilePath& golden_output_file) {
const char kNewWindowsInTabs[] = "tabs.new_windows_in_tabs";
const char kMaxTabs[] = "tabs.max_tabs";
const char kLongIntPref[] = "long_int.pref";
std::string cnn("http://www.cnn.com");
const Value* actual;
EXPECT_TRUE(pref_store->GetValue(kHomePage, &actual));
std::string string_value;
EXPECT_TRUE(actual->GetAsString(&string_value));
EXPECT_EQ(cnn, string_value);
const char kSomeDirectory[] = "some_directory";
EXPECT_TRUE(pref_store->GetValue(kSomeDirectory, &actual));
FilePath::StringType path;
EXPECT_TRUE(actual->GetAsString(&path));
EXPECT_EQ(FilePath::StringType(FILE_PATH_LITERAL("/usr/local/")), path);
FilePath some_path(FILE_PATH_LITERAL("/usr/sbin/"));
pref_store->SetValue(kSomeDirectory, new StringValue(some_path.value()));
EXPECT_TRUE(pref_store->GetValue(kSomeDirectory, &actual));
EXPECT_TRUE(actual->GetAsString(&path));
EXPECT_EQ(some_path.value(), path);
// Test reading some other data types from sub-dictionaries.
EXPECT_TRUE(pref_store->GetValue(kNewWindowsInTabs, &actual));
bool boolean = false;
EXPECT_TRUE(actual->GetAsBoolean(&boolean));
EXPECT_TRUE(boolean);
pref_store->SetValue(kNewWindowsInTabs, new FundamentalValue(false));
EXPECT_TRUE(pref_store->GetValue(kNewWindowsInTabs, &actual));
EXPECT_TRUE(actual->GetAsBoolean(&boolean));
EXPECT_FALSE(boolean);
EXPECT_TRUE(pref_store->GetValue(kMaxTabs, &actual));
int integer = 0;
EXPECT_TRUE(actual->GetAsInteger(&integer));
EXPECT_EQ(20, integer);
pref_store->SetValue(kMaxTabs, new FundamentalValue(10));
EXPECT_TRUE(pref_store->GetValue(kMaxTabs, &actual));
EXPECT_TRUE(actual->GetAsInteger(&integer));
EXPECT_EQ(10, integer);
pref_store->SetValue(kLongIntPref,
new StringValue(base::Int64ToString(214748364842LL)));
EXPECT_TRUE(pref_store->GetValue(kLongIntPref, &actual));
EXPECT_TRUE(actual->GetAsString(&string_value));
int64 value;
base::StringToInt64(string_value, &value);
EXPECT_EQ(214748364842LL, value);
// Serialize and compare to expected output.
ASSERT_TRUE(file_util::PathExists(golden_output_file));
pref_store->CommitPendingWrite();
MessageLoop::current()->RunUntilIdle();
EXPECT_TRUE(file_util::TextContentsEqual(golden_output_file, output_file));
ASSERT_TRUE(file_util::Delete(output_file, false));
}
TEST_F(JsonPrefStoreTest, Basic) {
ASSERT_TRUE(file_util::CopyFile(data_dir_.AppendASCII("read.json"),
temp_dir_.path().AppendASCII("write.json")));
// Test that the persistent value can be loaded.
FilePath input_file = temp_dir_.path().AppendASCII("write.json");
ASSERT_TRUE(file_util::PathExists(input_file));
scoped_refptr<JsonPrefStore> pref_store =
new JsonPrefStore(
input_file, message_loop_.message_loop_proxy());
ASSERT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, pref_store->ReadPrefs());
ASSERT_FALSE(pref_store->ReadOnly());
// The JSON file looks like this:
// {
// "homepage": "http://www.cnn.com",
// "some_directory": "/usr/local/",
// "tabs": {
// "new_windows_in_tabs": true,
// "max_tabs": 20
// }
// }
RunBasicJsonPrefStoreTest(pref_store,
input_file,
data_dir_.AppendASCII("write.golden.json"));
}
TEST_F(JsonPrefStoreTest, BasicAsync) {
ASSERT_TRUE(file_util::CopyFile(data_dir_.AppendASCII("read.json"),
temp_dir_.path().AppendASCII("write.json")));
// Test that the persistent value can be loaded.
FilePath input_file = temp_dir_.path().AppendASCII("write.json");
ASSERT_TRUE(file_util::PathExists(input_file));
scoped_refptr<JsonPrefStore> pref_store =
new JsonPrefStore(
input_file, message_loop_.message_loop_proxy());
{
MockPrefStoreObserver mock_observer;
pref_store->AddObserver(&mock_observer);
MockReadErrorDelegate* mock_error_delegate = new MockReadErrorDelegate;
pref_store->ReadPrefsAsync(mock_error_delegate);
EXPECT_CALL(mock_observer, OnInitializationCompleted(true)).Times(1);
EXPECT_CALL(*mock_error_delegate,
OnError(PersistentPrefStore::PREF_READ_ERROR_NONE)).Times(0);
message_loop_.RunUntilIdle();
pref_store->RemoveObserver(&mock_observer);
ASSERT_FALSE(pref_store->ReadOnly());
}
// The JSON file looks like this:
// {
// "homepage": "http://www.cnn.com",
// "some_directory": "/usr/local/",
// "tabs": {
// "new_windows_in_tabs": true,
// "max_tabs": 20
// }
// }
RunBasicJsonPrefStoreTest(pref_store,
input_file,
data_dir_.AppendASCII("write.golden.json"));
}
// Tests asynchronous reading of the file when there is no file.
TEST_F(JsonPrefStoreTest, AsyncNonExistingFile) {
FilePath bogus_input_file = data_dir_.AppendASCII("read.txt");
ASSERT_FALSE(file_util::PathExists(bogus_input_file));
scoped_refptr<JsonPrefStore> pref_store =
new JsonPrefStore(
bogus_input_file, message_loop_.message_loop_proxy());
MockPrefStoreObserver mock_observer;
pref_store->AddObserver(&mock_observer);
MockReadErrorDelegate *mock_error_delegate = new MockReadErrorDelegate;
pref_store->ReadPrefsAsync(mock_error_delegate);
EXPECT_CALL(mock_observer, OnInitializationCompleted(true)).Times(1);
EXPECT_CALL(*mock_error_delegate,
OnError(PersistentPrefStore::PREF_READ_ERROR_NO_FILE)).Times(1);
message_loop_.RunUntilIdle();
pref_store->RemoveObserver(&mock_observer);
EXPECT_FALSE(pref_store->ReadOnly());
}
TEST_F(JsonPrefStoreTest, NeedsEmptyValue) {
FilePath pref_file = temp_dir_.path().AppendASCII("write.json");
ASSERT_TRUE(file_util::CopyFile(
data_dir_.AppendASCII("read.need_empty_value.json"),
pref_file));
// Test that the persistent value can be loaded.
ASSERT_TRUE(file_util::PathExists(pref_file));
scoped_refptr<JsonPrefStore> pref_store =
new JsonPrefStore(
pref_file, message_loop_.message_loop_proxy());
ASSERT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, pref_store->ReadPrefs());
ASSERT_FALSE(pref_store->ReadOnly());
// The JSON file looks like this:
// {
// "list": [ 1 ],
// "list_needs_empty_value": [ 2 ],
// "dict": {
// "dummy": true,
// },
// "dict_needs_empty_value": {
// "dummy": true,
// },
// }
// Set flag to preserve empty values for the following keys.
pref_store->MarkNeedsEmptyValue("list_needs_empty_value");
pref_store->MarkNeedsEmptyValue("dict_needs_empty_value");
// Set all keys to empty values.
pref_store->SetValue("list", new base::ListValue);
pref_store->SetValue("list_needs_empty_value", new base::ListValue);
pref_store->SetValue("dict", new base::DictionaryValue);
pref_store->SetValue("dict_needs_empty_value", new base::DictionaryValue);
// Write to file.
pref_store->CommitPendingWrite();
MessageLoop::current()->RunUntilIdle();
// Compare to expected output.
FilePath golden_output_file =
data_dir_.AppendASCII("write.golden.need_empty_value.json");
ASSERT_TRUE(file_util::PathExists(golden_output_file));
EXPECT_TRUE(file_util::TextContentsEqual(golden_output_file, pref_file));
}
} // namespace base