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// Copyright (c) 2010 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/file_util.h"
#include "base/message_loop.h"
#include "base/message_loop_proxy.h"
#include "base/path_service.h"
#include "base/scoped_ptr.h"
#include "base/string_number_conversions.h"
#include "base/string_util.h"
#include "base/threading/thread.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/common/json_pref_store.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/pref_names.h"
#include "testing/gtest/include/gtest/gtest.h"
class JsonPrefStoreTest : public testing::Test {
protected:
virtual void SetUp() {
message_loop_proxy_ = base::MessageLoopProxy::CreateForCurrentThread();
// Name a subdirectory of the temp directory.
ASSERT_TRUE(PathService::Get(base::DIR_TEMP, &test_dir_));
test_dir_ = test_dir_.AppendASCII("JsonPrefStoreTest");
// Create a fresh, empty copy of this directory.
file_util::Delete(test_dir_, true);
file_util::CreateDirectory(test_dir_);
ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &data_dir_));
data_dir_ = data_dir_.AppendASCII("pref_service");
ASSERT_TRUE(file_util::PathExists(data_dir_));
}
virtual void TearDown() {
// Clean up test directory
ASSERT_TRUE(file_util::Delete(test_dir_, true));
ASSERT_FALSE(file_util::PathExists(test_dir_));
}
// the path to temporary directory used to contain the test operations
FilePath test_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_;
scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
};
// 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));
JsonPrefStore pref_store(bogus_input_file, message_loop_proxy_.get());
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 = test_dir_.AppendASCII("invalid.json");
ASSERT_TRUE(file_util::CopyFile(invalid_file_original, invalid_file));
JsonPrefStore pref_store(invalid_file, message_loop_proxy_.get());
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 = test_dir_.AppendASCII("invalid.bad");
EXPECT_TRUE(file_util::PathExists(moved_aside));
EXPECT_TRUE(file_util::TextContentsEqual(invalid_file_original,
moved_aside));
}
TEST_F(JsonPrefStoreTest, Basic) {
ASSERT_TRUE(file_util::CopyFile(data_dir_.AppendASCII("read.json"),
test_dir_.AppendASCII("write.json")));
// Test that the persistent value can be loaded.
FilePath input_file = test_dir_.AppendASCII("write.json");
ASSERT_TRUE(file_util::PathExists(input_file));
JsonPrefStore pref_store(input_file, message_loop_proxy_.get());
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
// }
// }
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");
Value* actual;
EXPECT_EQ(PrefStore::READ_OK,
pref_store.GetValue(prefs::kHomePage, &actual));
std::string string_value;
EXPECT_TRUE(actual->GetAsString(&string_value));
EXPECT_EQ(cnn, string_value);
const char kSomeDirectory[] = "some_directory";
EXPECT_EQ(PrefStore::READ_OK, 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,
Value::CreateStringValue(some_path.value()));
EXPECT_EQ(PrefStore::READ_OK, 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_EQ(PrefStore::READ_OK,
pref_store.GetValue(kNewWindowsInTabs, &actual));
bool boolean = false;
EXPECT_TRUE(actual->GetAsBoolean(&boolean));
EXPECT_TRUE(boolean);
pref_store.SetValue(kNewWindowsInTabs,
Value::CreateBooleanValue(false));
EXPECT_EQ(PrefStore::READ_OK,
pref_store.GetValue(kNewWindowsInTabs, &actual));
EXPECT_TRUE(actual->GetAsBoolean(&boolean));
EXPECT_FALSE(boolean);
EXPECT_EQ(PrefStore::READ_OK, pref_store.GetValue(kMaxTabs, &actual));
int integer = 0;
EXPECT_TRUE(actual->GetAsInteger(&integer));
EXPECT_EQ(20, integer);
pref_store.SetValue(kMaxTabs, Value::CreateIntegerValue(10));
EXPECT_EQ(PrefStore::READ_OK, pref_store.GetValue(kMaxTabs, &actual));
EXPECT_TRUE(actual->GetAsInteger(&integer));
EXPECT_EQ(10, integer);
pref_store.SetValue(kLongIntPref,
Value::CreateStringValue(
base::Int64ToString(214748364842LL)));
EXPECT_EQ(PrefStore::READ_OK, 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.
FilePath output_file = input_file;
FilePath golden_output_file = data_dir_.AppendASCII("write.golden.json");
ASSERT_TRUE(file_util::PathExists(golden_output_file));
ASSERT_TRUE(pref_store.WritePrefs());
MessageLoop::current()->RunAllPending();
EXPECT_TRUE(file_util::TextContentsEqual(golden_output_file, output_file));
ASSERT_TRUE(file_util::Delete(output_file, false));
}
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