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prettywritertest.cpp
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prettywritertest.cpp
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// Tencent is pleased to support the open source community by making RapidJSON available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip.
//
// Licensed under the MIT License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// http://opensource.org/licenses/MIT
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#include "unittest.h"
#include "rapidjson/reader.h"
#include "rapidjson/prettywriter.h"
#include "rapidjson/stringbuffer.h"
#include "rapidjson/filewritestream.h"
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
using namespace rapidjson;
static const char kJson[] = "{\"hello\":\"world\",\"t\":true,\"f\":false,\"n\":null,\"i\":123,\"pi\":3.1416,\"a\":[1,2,3,-1],\"u64\":1234567890123456789,\"i64\":-1234567890123456789}";
static const char kPrettyJson[] =
"{\n"
" \"hello\": \"world\",\n"
" \"t\": true,\n"
" \"f\": false,\n"
" \"n\": null,\n"
" \"i\": 123,\n"
" \"pi\": 3.1416,\n"
" \"a\": [\n"
" 1,\n"
" 2,\n"
" 3,\n"
" -1\n"
" ],\n"
" \"u64\": 1234567890123456789,\n"
" \"i64\": -1234567890123456789\n"
"}";
static const char kPrettyJson_FormatOptions_SLA[] =
"{\n"
" \"hello\": \"world\",\n"
" \"t\": true,\n"
" \"f\": false,\n"
" \"n\": null,\n"
" \"i\": 123,\n"
" \"pi\": 3.1416,\n"
" \"a\": [1, 2, 3, -1],\n"
" \"u64\": 1234567890123456789,\n"
" \"i64\": -1234567890123456789\n"
"}";
TEST(PrettyWriter, Basic) {
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
Reader reader;
StringStream s(kJson);
reader.Parse(s, writer);
EXPECT_STREQ(kPrettyJson, buffer.GetString());
}
TEST(PrettyWriter, FormatOptions) {
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.SetFormatOptions(kFormatSingleLineArray);
Reader reader;
StringStream s(kJson);
reader.Parse(s, writer);
EXPECT_STREQ(kPrettyJson_FormatOptions_SLA, buffer.GetString());
}
TEST(PrettyWriter, SetIndent) {
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.SetIndent('\t', 1);
Reader reader;
StringStream s(kJson);
reader.Parse(s, writer);
EXPECT_STREQ(
"{\n"
"\t\"hello\": \"world\",\n"
"\t\"t\": true,\n"
"\t\"f\": false,\n"
"\t\"n\": null,\n"
"\t\"i\": 123,\n"
"\t\"pi\": 3.1416,\n"
"\t\"a\": [\n"
"\t\t1,\n"
"\t\t2,\n"
"\t\t3,\n"
"\t\t-1\n"
"\t],\n"
"\t\"u64\": 1234567890123456789,\n"
"\t\"i64\": -1234567890123456789\n"
"}",
buffer.GetString());
}
TEST(PrettyWriter, String) {
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
EXPECT_TRUE(writer.StartArray());
EXPECT_TRUE(writer.String("Hello\n"));
EXPECT_TRUE(writer.EndArray());
EXPECT_STREQ("[\n \"Hello\\n\"\n]", buffer.GetString());
}
#if RAPIDJSON_HAS_STDSTRING
TEST(PrettyWriter, String_STDSTRING) {
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
EXPECT_TRUE(writer.StartArray());
EXPECT_TRUE(writer.String(std::string("Hello\n")));
EXPECT_TRUE(writer.EndArray());
EXPECT_STREQ("[\n \"Hello\\n\"\n]", buffer.GetString());
}
#endif
#include <sstream>
class OStreamWrapper {
public:
typedef char Ch;
OStreamWrapper(std::ostream& os) : os_(os) {}
Ch Peek() const { assert(false); return '\0'; }
Ch Take() { assert(false); return '\0'; }
size_t Tell() const { return 0; }
Ch* PutBegin() { assert(false); return 0; }
void Put(Ch c) { os_.put(c); }
void Flush() { os_.flush(); }
size_t PutEnd(Ch*) { assert(false); return 0; }
private:
OStreamWrapper(const OStreamWrapper&);
OStreamWrapper& operator=(const OStreamWrapper&);
std::ostream& os_;
};
// For covering PutN() generic version
TEST(PrettyWriter, OStreamWrapper) {
StringStream s(kJson);
std::stringstream ss;
OStreamWrapper os(ss);
PrettyWriter<OStreamWrapper> writer(os);
Reader reader;
reader.Parse(s, writer);
std::string actual = ss.str();
EXPECT_STREQ(kPrettyJson, actual.c_str());
}
// For covering FileWriteStream::PutN()
TEST(PrettyWriter, FileWriteStream) {
char filename[L_tmpnam];
FILE* fp = TempFile(filename);
ASSERT_TRUE(fp!=NULL);
char buffer[16];
FileWriteStream os(fp, buffer, sizeof(buffer));
PrettyWriter<FileWriteStream> writer(os);
Reader reader;
StringStream s(kJson);
reader.Parse(s, writer);
fclose(fp);
fp = fopen(filename, "rb");
fseek(fp, 0, SEEK_END);
size_t size = static_cast<size_t>(ftell(fp));
fseek(fp, 0, SEEK_SET);
char* json = static_cast<char*>(malloc(size + 1));
size_t readLength = fread(json, 1, size, fp);
json[readLength] = '\0';
fclose(fp);
remove(filename);
EXPECT_STREQ(kPrettyJson, json);
free(json);
}
TEST(PrettyWriter, RawValue) {
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.StartObject();
writer.Key("a");
writer.Int(1);
writer.Key("raw");
const char json[] = "[\"Hello\\nWorld\", 123.456]";
writer.RawValue(json, strlen(json), kArrayType);
writer.EndObject();
EXPECT_TRUE(writer.IsComplete());
EXPECT_STREQ(
"{\n"
" \"a\": 1,\n"
" \"raw\": [\"Hello\\nWorld\", 123.456]\n" // no indentation within raw value
"}",
buffer.GetString());
}
TEST(PrettyWriter, InvalidEventSequence) {
// {]
{
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.StartObject();
EXPECT_THROW(writer.EndArray(), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
// [}
{
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.StartArray();
EXPECT_THROW(writer.EndObject(), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
// { 1:
{
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.StartObject();
EXPECT_THROW(writer.Int(1), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
// { 'a' }
{
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.StartObject();
writer.Key("a");
EXPECT_THROW(writer.EndObject(), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
// { 'a':'b','c' }
{
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.StartObject();
writer.Key("a");
writer.String("b");
writer.Key("c");
EXPECT_THROW(writer.EndObject(), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
}
TEST(PrettyWriter, NaN) {
double nan = std::numeric_limits<double>::quiet_NaN();
EXPECT_TRUE(internal::Double(nan).IsNan());
StringBuffer buffer;
{
PrettyWriter<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.Double(nan));
}
{
PrettyWriter<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteNanAndInfFlag> writer(buffer);
EXPECT_TRUE(writer.Double(nan));
EXPECT_STREQ("NaN", buffer.GetString());
}
GenericStringBuffer<UTF16<> > buffer2;
PrettyWriter<GenericStringBuffer<UTF16<> > > writer2(buffer2);
EXPECT_FALSE(writer2.Double(nan));
}
TEST(PrettyWriter, Inf) {
double inf = std::numeric_limits<double>::infinity();
EXPECT_TRUE(internal::Double(inf).IsInf());
StringBuffer buffer;
{
PrettyWriter<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.Double(inf));
}
{
PrettyWriter<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.Double(-inf));
}
{
PrettyWriter<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteNanAndInfFlag> writer(buffer);
EXPECT_TRUE(writer.Double(inf));
}
{
PrettyWriter<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteNanAndInfFlag> writer(buffer);
EXPECT_TRUE(writer.Double(-inf));
}
EXPECT_STREQ("Infinity-Infinity", buffer.GetString());
}
TEST(PrettyWriter, Issue_889) {
char buf[100] = "Hello";
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.StartArray();
writer.String(buf);
writer.EndArray();
EXPECT_STREQ("[\n \"Hello\"\n]", buffer.GetString());
EXPECT_TRUE(writer.IsComplete()); \
}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
static PrettyWriter<StringBuffer> WriterGen(StringBuffer &target) {
PrettyWriter<StringBuffer> writer(target);
writer.StartObject();
writer.Key("a");
writer.Int(1);
return writer;
}
TEST(PrettyWriter, MoveCtor) {
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(WriterGen(buffer));
writer.EndObject();
EXPECT_TRUE(writer.IsComplete());
EXPECT_STREQ(
"{\n"
" \"a\": 1\n"
"}",
buffer.GetString());
}
#endif
TEST(PrettyWriter, Issue_1336) {
#define T(meth, val, expected) \
{ \
StringBuffer buffer; \
PrettyWriter<StringBuffer> writer(buffer); \
writer.meth(val); \
\
EXPECT_STREQ(expected, buffer.GetString()); \
EXPECT_TRUE(writer.IsComplete()); \
}
T(Bool, false, "false");
T(Bool, true, "true");
T(Int, 0, "0");
T(Uint, 0, "0");
T(Int64, 0, "0");
T(Uint64, 0, "0");
T(Double, 0, "0.0");
T(String, "Hello", "\"Hello\"");
#undef T
StringBuffer buffer;
PrettyWriter<StringBuffer> writer(buffer);
writer.Null();
EXPECT_STREQ("null", buffer.GetString());
EXPECT_TRUE(writer.IsComplete());
}
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif