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// Copyright 2015 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/files/file_util.h"
#include "base/values.h"
#include "chromecast/base/serializers.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace chromecast {
namespace {
const char kEmptyJsonString[] = "{}";
const char kEmptyJsonFileString[] = "{\n\n}\n";
const char kProperJsonString[] =
"{\n"
" \"compound\": {\n"
" \"a\": 1,\n"
" \"b\": 2\n"
" },\n"
" \"some_String\": \"1337\",\n"
" \"some_int\": 42,\n"
" \"the_list\": [ \"val1\", \"val2\" ]\n"
"}\n";
const char kPoorlyFormedJsonString[] = "{\"key\":";
const char kTestKey[] = "test_key";
const char kTestValue[] = "test_value";
const char kTempfileName[] = "temp";
} // namespace
TEST(DeserializeFromJson, EmptyString) {
std::string str;
scoped_ptr<base::Value> value = DeserializeFromJson(str);
EXPECT_EQ(nullptr, value.get());
}
TEST(DeserializeFromJson, EmptyJsonObject) {
std::string str = kEmptyJsonString;
scoped_ptr<base::Value> value = DeserializeFromJson(str);
EXPECT_NE(nullptr, value.get());
}
TEST(DeserializeFromJson, ProperJsonObject) {
std::string str = kProperJsonString;
scoped_ptr<base::Value> value = DeserializeFromJson(str);
EXPECT_NE(nullptr, value.get());
}
TEST(DeserializeFromJson, PoorlyFormedJsonObject) {
std::string str = kPoorlyFormedJsonString;
scoped_ptr<base::Value> value = DeserializeFromJson(str);
EXPECT_EQ(nullptr, value.get());
}
TEST(SerializeToJson, BadValue) {
base::BinaryValue value(scoped_ptr<char[]>(new char[12]), 12);
scoped_ptr<std::string> str = SerializeToJson(value);
EXPECT_EQ(nullptr, str.get());
}
TEST(SerializeToJson, EmptyValue) {
base::DictionaryValue value;
scoped_ptr<std::string> str = SerializeToJson(value);
ASSERT_NE(nullptr, str.get());
EXPECT_EQ(kEmptyJsonString, *str);
}
TEST(SerializeToJson, PopulatedValue) {
base::DictionaryValue orig_value;
orig_value.SetString(kTestKey, kTestValue);
scoped_ptr<std::string> str = SerializeToJson(orig_value);
ASSERT_NE(nullptr, str.get());
scoped_ptr<base::Value> new_value = DeserializeFromJson(*str);
ASSERT_NE(nullptr, new_value.get());
EXPECT_TRUE(new_value->Equals(&orig_value));
}
class ScopedTempFile {
public:
ScopedTempFile() {
// Create a temporary file
base::CreateNewTempDirectory("", &dir_);
file_ = dir_.Append(kTempfileName);
}
~ScopedTempFile() {
// Remove the temp directory.
base::DeleteFile(dir_, true);
}
const base::FilePath& file() const { return file_; }
const base::FilePath& dir() const { return dir_; }
std::size_t Write(const char* str) {
return static_cast<std::size_t>(base::WriteFile(file_, str, strlen(str)));
}
std::string Read() {
std::string result;
ReadFileToString(file_, &result);
return result;
}
private:
base::FilePath file_;
base::FilePath dir_;
DISALLOW_COPY_AND_ASSIGN(ScopedTempFile);
};
TEST(DeserializeJsonFromFile, NoFile) {
ScopedTempFile temp;
ASSERT_TRUE(base::IsDirectoryEmpty(temp.dir()));
scoped_ptr<base::Value> value = DeserializeJsonFromFile(temp.file());
EXPECT_EQ(nullptr, value.get());
}
TEST(DeserializeJsonFromFile, EmptyString) {
ScopedTempFile temp;
EXPECT_EQ(strlen(""), temp.Write(""));
scoped_ptr<base::Value> value = DeserializeJsonFromFile(temp.file());
EXPECT_EQ(nullptr, value.get());
}
TEST(DeserializeJsonFromFile, EmptyJsonObject) {
ScopedTempFile temp;
EXPECT_EQ(strlen(kEmptyJsonString), temp.Write(kEmptyJsonString));
scoped_ptr<base::Value> value = DeserializeJsonFromFile(temp.file());
EXPECT_NE(nullptr, value.get());
}
TEST(DeserializeJsonFromFile, ProperJsonObject) {
ScopedTempFile temp;
EXPECT_EQ(strlen(kProperJsonString), temp.Write(kProperJsonString));
scoped_ptr<base::Value> value = DeserializeJsonFromFile(temp.file());
EXPECT_NE(nullptr, value.get());
}
TEST(DeserializeJsonFromFile, PoorlyFormedJsonObject) {
ScopedTempFile temp;
EXPECT_EQ(strlen(kPoorlyFormedJsonString),
temp.Write(kPoorlyFormedJsonString));
scoped_ptr<base::Value> value = DeserializeJsonFromFile(temp.file());
EXPECT_EQ(nullptr, value.get());
}
TEST(SerializeJsonToFile, BadValue) {
ScopedTempFile temp;
base::BinaryValue value(scoped_ptr<char[]>(new char[12]), 12);
ASSERT_FALSE(SerializeJsonToFile(temp.file(), value));
std::string str(temp.Read());
EXPECT_TRUE(str.empty());
}
TEST(SerializeJsonToFile, EmptyValue) {
ScopedTempFile temp;
base::DictionaryValue value;
ASSERT_TRUE(SerializeJsonToFile(temp.file(), value));
std::string str(temp.Read());
ASSERT_FALSE(str.empty());
EXPECT_EQ(kEmptyJsonFileString, str);
}
TEST(SerializeJsonToFile, PopulatedValue) {
ScopedTempFile temp;
base::DictionaryValue orig_value;
orig_value.SetString(kTestKey, kTestValue);
ASSERT_TRUE(SerializeJsonToFile(temp.file(), orig_value));
std::string str(temp.Read());
ASSERT_FALSE(str.empty());
scoped_ptr<base::Value> new_value = DeserializeJsonFromFile(temp.file());
ASSERT_NE(nullptr, new_value.get());
EXPECT_TRUE(new_value->Equals(&orig_value));
}
} // namespace chromecast
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