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osrm-backend/third_party/rapidjson/test/unittest/writertest.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. All rights reserved.
//
// 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/document.h"
#include "rapidjson/reader.h"
#include "rapidjson/writer.h"
#include "rapidjson/stringbuffer.h"
#include "rapidjson/memorybuffer.h"
using namespace rapidjson;
TEST(Writer, Compact) {
StringStream s("{ \"hello\" : \"world\", \"t\" : true , \"f\" : false, \"n\": null, \"i\":123, \"pi\": 3.1416, \"a\":[1, 2, 3] } ");
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
buffer.ShrinkToFit();
Reader reader;
reader.Parse<0>(s, writer);
EXPECT_STREQ("{\"hello\":\"world\",\"t\":true,\"f\":false,\"n\":null,\"i\":123,\"pi\":3.1416,\"a\":[1,2,3]}", buffer.GetString());
EXPECT_EQ(77u, buffer.GetSize());
EXPECT_TRUE(writer.IsComplete());
}
// json -> parse -> writer -> json
#define TEST_ROUNDTRIP(json) \
{ \
StringStream s(json); \
StringBuffer buffer; \
Writer<StringBuffer> writer(buffer); \
Reader reader; \
reader.Parse<kParseFullPrecisionFlag>(s, writer); \
EXPECT_STREQ(json, buffer.GetString()); \
EXPECT_TRUE(writer.IsComplete()); \
}
TEST(Writer, Root) {
TEST_ROUNDTRIP("null");
TEST_ROUNDTRIP("true");
TEST_ROUNDTRIP("false");
TEST_ROUNDTRIP("0");
TEST_ROUNDTRIP("\"foo\"");
TEST_ROUNDTRIP("[]");
TEST_ROUNDTRIP("{}");
}
TEST(Writer, Int) {
TEST_ROUNDTRIP("[-1]");
TEST_ROUNDTRIP("[-123]");
TEST_ROUNDTRIP("[-2147483648]");
}
TEST(Writer, UInt) {
TEST_ROUNDTRIP("[0]");
TEST_ROUNDTRIP("[1]");
TEST_ROUNDTRIP("[123]");
TEST_ROUNDTRIP("[2147483647]");
TEST_ROUNDTRIP("[4294967295]");
}
TEST(Writer, Int64) {
TEST_ROUNDTRIP("[-1234567890123456789]");
TEST_ROUNDTRIP("[-9223372036854775808]");
}
TEST(Writer, Uint64) {
TEST_ROUNDTRIP("[1234567890123456789]");
TEST_ROUNDTRIP("[9223372036854775807]");
}
TEST(Writer, String) {
TEST_ROUNDTRIP("[\"Hello\"]");
TEST_ROUNDTRIP("[\"Hello\\u0000World\"]");
TEST_ROUNDTRIP("[\"\\\"\\\\/\\b\\f\\n\\r\\t\"]");
#if RAPIDJSON_HAS_STDSTRING
{
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.String(std::string("Hello\n"));
EXPECT_STREQ("\"Hello\\n\"", buffer.GetString());
}
#endif
}
TEST(Writer, ScanWriteUnescapedString) {
const char json[] = "[\" \\\"0123456789ABCDEF\"]";
// ^ scanning stops here.
char buffer2[sizeof(json) + 32];
// Use different offset to test different alignments
for (int i = 0; i < 32; i++) {
char* p = buffer2 + i;
memcpy(p, json, sizeof(json));
TEST_ROUNDTRIP(p);
}
}
TEST(Writer, Double) {
TEST_ROUNDTRIP("[1.2345,1.2345678,0.123456789012,1234567.8]");
TEST_ROUNDTRIP("0.0");
TEST_ROUNDTRIP("-0.0"); // Issue #289
TEST_ROUNDTRIP("1e30");
TEST_ROUNDTRIP("1.0");
TEST_ROUNDTRIP("5e-324"); // Min subnormal positive double
TEST_ROUNDTRIP("2.225073858507201e-308"); // Max subnormal positive double
TEST_ROUNDTRIP("2.2250738585072014e-308"); // Min normal positive double
TEST_ROUNDTRIP("1.7976931348623157e308"); // Max double
}
// UTF8 -> TargetEncoding -> UTF8
template <typename TargetEncoding>
void TestTranscode(const char* json) {
StringStream s(json);
GenericStringBuffer<TargetEncoding> buffer;
Writer<GenericStringBuffer<TargetEncoding>, UTF8<>, TargetEncoding> writer(buffer);
Reader reader;
reader.Parse(s, writer);
StringBuffer buffer2;
Writer<StringBuffer> writer2(buffer2);
GenericReader<TargetEncoding, UTF8<> > reader2;
GenericStringStream<TargetEncoding> s2(buffer.GetString());
reader2.Parse(s2, writer2);
EXPECT_STREQ(json, buffer2.GetString());
}
TEST(Writer, Transcode) {
const char json[] = "{\"hello\":\"world\",\"t\":true,\"f\":false,\"n\":null,\"i\":123,\"pi\":3.1416,\"a\":[1,2,3],\"dollar\":\"\x24\",\"cents\":\"\xC2\xA2\",\"euro\":\"\xE2\x82\xAC\",\"gclef\":\"\xF0\x9D\x84\x9E\"}";
// UTF8 -> UTF16 -> UTF8
TestTranscode<UTF8<> >(json);
// UTF8 -> ASCII -> UTF8
TestTranscode<ASCII<> >(json);
// UTF8 -> UTF16 -> UTF8
TestTranscode<UTF16<> >(json);
// UTF8 -> UTF32 -> UTF8
TestTranscode<UTF32<> >(json);
// UTF8 -> AutoUTF -> UTF8
UTFType types[] = { kUTF8, kUTF16LE , kUTF16BE, kUTF32LE , kUTF32BE };
for (size_t i = 0; i < 5; i++) {
StringStream s(json);
MemoryBuffer buffer;
AutoUTFOutputStream<unsigned, MemoryBuffer> os(buffer, types[i], true);
Writer<AutoUTFOutputStream<unsigned, MemoryBuffer>, UTF8<>, AutoUTF<unsigned> > writer(os);
Reader reader;
reader.Parse(s, writer);
StringBuffer buffer2;
Writer<StringBuffer> writer2(buffer2);
GenericReader<AutoUTF<unsigned>, UTF8<> > reader2;
MemoryStream s2(buffer.GetBuffer(), buffer.GetSize());
AutoUTFInputStream<unsigned, MemoryStream> is(s2);
reader2.Parse(is, writer2);
EXPECT_STREQ(json, buffer2.GetString());
}
}
#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_;
};
TEST(Writer, OStreamWrapper) {
StringStream s("{ \"hello\" : \"world\", \"t\" : true , \"f\" : false, \"n\": null, \"i\":123, \"pi\": 3.1416, \"a\":[1, 2, 3], \"u64\": 1234567890123456789, \"i64\":-1234567890123456789 } ");
std::stringstream ss;
OStreamWrapper os(ss);
Writer<OStreamWrapper> writer(os);
Reader reader;
reader.Parse<0>(s, writer);
std::string actual = ss.str();
EXPECT_STREQ("{\"hello\":\"world\",\"t\":true,\"f\":false,\"n\":null,\"i\":123,\"pi\":3.1416,\"a\":[1,2,3],\"u64\":1234567890123456789,\"i64\":-1234567890123456789}", actual.c_str());
}
TEST(Writer, AssertRootMayBeAnyValue) {
#define T(x)\
{\
StringBuffer buffer;\
Writer<StringBuffer> writer(buffer);\
EXPECT_TRUE(x);\
}
T(writer.Bool(false));
T(writer.Bool(true));
T(writer.Null());
T(writer.Int(0));
T(writer.Uint(0));
T(writer.Int64(0));
T(writer.Uint64(0));
T(writer.Double(0));
T(writer.String("foo"));
#undef T
}
TEST(Writer, AssertIncorrectObjectLevel) {
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartObject();
writer.EndObject();
ASSERT_THROW(writer.EndObject(), AssertException);
}
TEST(Writer, AssertIncorrectArrayLevel) {
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartArray();
writer.EndArray();
ASSERT_THROW(writer.EndArray(), AssertException);
}
TEST(Writer, AssertIncorrectEndObject) {
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartObject();
ASSERT_THROW(writer.EndArray(), AssertException);
}
TEST(Writer, AssertIncorrectEndArray) {
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartObject();
ASSERT_THROW(writer.EndArray(), AssertException);
}
TEST(Writer, AssertObjectKeyNotString) {
#define T(x)\
{\
StringBuffer buffer;\
Writer<StringBuffer> writer(buffer);\
writer.StartObject();\
ASSERT_THROW(x, AssertException); \
}
T(writer.Bool(false));
T(writer.Bool(true));
T(writer.Null());
T(writer.Int(0));
T(writer.Uint(0));
T(writer.Int64(0));
T(writer.Uint64(0));
T(writer.Double(0));
T(writer.StartObject());
T(writer.StartArray());
#undef T
}
TEST(Writer, AssertMultipleRoot) {
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartObject();
writer.EndObject();
ASSERT_THROW(writer.StartObject(), AssertException);
writer.Reset(buffer);
writer.Null();
ASSERT_THROW(writer.Int(0), AssertException);
writer.Reset(buffer);
writer.String("foo");
ASSERT_THROW(writer.StartArray(), AssertException);
writer.Reset(buffer);
writer.StartArray();
writer.EndArray();
//ASSERT_THROW(writer.Double(3.14), AssertException);
}
TEST(Writer, RootObjectIsComplete) {
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.IsComplete());
writer.StartObject();
EXPECT_FALSE(writer.IsComplete());
writer.String("foo");
EXPECT_FALSE(writer.IsComplete());
writer.Int(1);
EXPECT_FALSE(writer.IsComplete());
writer.EndObject();
EXPECT_TRUE(writer.IsComplete());
}
TEST(Writer, RootArrayIsComplete) {
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.IsComplete());
writer.StartArray();
EXPECT_FALSE(writer.IsComplete());
writer.String("foo");
EXPECT_FALSE(writer.IsComplete());
writer.Int(1);
EXPECT_FALSE(writer.IsComplete());
writer.EndArray();
EXPECT_TRUE(writer.IsComplete());
}
TEST(Writer, RootValueIsComplete) {
#define T(x)\
{\
StringBuffer buffer;\
Writer<StringBuffer> writer(buffer);\
EXPECT_FALSE(writer.IsComplete()); \
x; \
EXPECT_TRUE(writer.IsComplete()); \
}
T(writer.Null());
T(writer.Bool(true));
T(writer.Bool(false));
T(writer.Int(0));
T(writer.Uint(0));
T(writer.Int64(0));
T(writer.Uint64(0));
T(writer.Double(0));
T(writer.String(""));
#undef T
}
TEST(Writer, InvalidEncoding) {
// Fail in decoding invalid UTF-8 sequence http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
{
GenericStringBuffer<UTF16<> > buffer;
Writer<GenericStringBuffer<UTF16<> >, UTF8<>, UTF16<> > writer(buffer);
writer.StartArray();
EXPECT_FALSE(writer.String("\xfe"));
EXPECT_FALSE(writer.String("\xff"));
EXPECT_FALSE(writer.String("\xfe\xfe\xff\xff"));
writer.EndArray();
}
// Fail in encoding
{
StringBuffer buffer;
Writer<StringBuffer, UTF32<> > writer(buffer);
static const UTF32<>::Ch s[] = { 0x110000, 0 }; // Out of U+0000 to U+10FFFF
EXPECT_FALSE(writer.String(s));
}
// Fail in unicode escaping in ASCII output
{
StringBuffer buffer;
Writer<StringBuffer, UTF32<>, ASCII<> > writer(buffer);
static const UTF32<>::Ch s[] = { 0x110000, 0 }; // Out of U+0000 to U+10FFFF
EXPECT_FALSE(writer.String(s));
}
}
TEST(Writer, ValidateEncoding) {
{
StringBuffer buffer;
Writer<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteValidateEncodingFlag> writer(buffer);
writer.StartArray();
EXPECT_TRUE(writer.String("\x24")); // Dollar sign U+0024
EXPECT_TRUE(writer.String("\xC2\xA2")); // Cents sign U+00A2
EXPECT_TRUE(writer.String("\xE2\x82\xAC")); // Euro sign U+20AC
EXPECT_TRUE(writer.String("\xF0\x9D\x84\x9E")); // G clef sign U+1D11E
writer.EndArray();
EXPECT_STREQ("[\"\x24\",\"\xC2\xA2\",\"\xE2\x82\xAC\",\"\xF0\x9D\x84\x9E\"]", buffer.GetString());
}
// Fail in decoding invalid UTF-8 sequence http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
{
StringBuffer buffer;
Writer<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteValidateEncodingFlag> writer(buffer);
writer.StartArray();
EXPECT_FALSE(writer.String("\xfe"));
EXPECT_FALSE(writer.String("\xff"));
EXPECT_FALSE(writer.String("\xfe\xfe\xff\xff"));
writer.EndArray();
}
}
TEST(Writer, InvalidEventSequence) {
// {]
{
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartObject();
EXPECT_THROW(writer.EndArray(), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
// [}
{
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartArray();
EXPECT_THROW(writer.EndObject(), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
// { 1:
{
StringBuffer buffer;
Writer<StringBuffer> writer(buffer);
writer.StartObject();
EXPECT_THROW(writer.Int(1), AssertException);
EXPECT_FALSE(writer.IsComplete());
}
}
TEST(Writer, NaN) {
double nan = std::numeric_limits<double>::quiet_NaN();
EXPECT_TRUE(internal::Double(nan).IsNan());
StringBuffer buffer;
{
Writer<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.Double(nan));
}
{
Writer<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteNanAndInfFlag> writer(buffer);
EXPECT_TRUE(writer.Double(nan));
EXPECT_STREQ("NaN", buffer.GetString());
}
GenericStringBuffer<UTF16<> > buffer2;
Writer<GenericStringBuffer<UTF16<> > > writer2(buffer2);
EXPECT_FALSE(writer2.Double(nan));
}
TEST(Writer, Inf) {
double inf = std::numeric_limits<double>::infinity();
EXPECT_TRUE(internal::Double(inf).IsInf());
StringBuffer buffer;
{
Writer<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.Double(inf));
}
{
Writer<StringBuffer> writer(buffer);
EXPECT_FALSE(writer.Double(-inf));
}
{
Writer<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteNanAndInfFlag> writer(buffer);
EXPECT_TRUE(writer.Double(inf));
}
{
Writer<StringBuffer, UTF8<>, UTF8<>, CrtAllocator, kWriteNanAndInfFlag> writer(buffer);
EXPECT_TRUE(writer.Double(-inf));
}
EXPECT_STREQ("Infinity-Infinity", buffer.GetString());
}
TEST(Writer, RawValue) {
StringBuffer buffer;
Writer<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("{\"a\":1,\"raw\":[\"Hello\\nWorld\", 123.456]}", buffer.GetString());
}
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