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json11/test.cpp

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/*
* Define JSON11_TEST_CUSTOM_CONFIG to 1 if you want to build this tester into
* your own unit-test framework rather than a stand-alone program. By setting
* The values of the variables included below, you can insert your own custom
* code into this file as it builds, in order to make it into a test case for
* your favorite framework.
*/
#if !JSON11_TEST_CUSTOM_CONFIG
#define JSON11_TEST_CPP_PREFIX_CODE
#define JSON11_TEST_CPP_SUFFIX_CODE
#define JSON11_TEST_STANDALONE_MAIN 1
#define JSON11_TEST_CASE(name) static void name()
#define JSON11_TEST_ASSERT(b) assert(b)
#ifdef NDEBUG
#undef NDEBUG//at now assert will work even in Release build
#endif
#endif // JSON11_TEST_CUSTOM_CONFIG
/*
* Enable or disable code which demonstrates the behavior change in Xcode 7 / Clang 3.7,
* introduced by DR1467 and described here: https://llvm.org/bugs/show_bug.cgi?id=23812
* Defaults to on in order to act as a warning to anyone who's unaware of the issue.
*/
#ifndef JSON11_ENABLE_DR1467_CANARY
#define JSON11_ENABLE_DR1467_CANARY 1
#endif
/*
* Beginning of standard source file, which makes use of the customizations above.
*/
#include <cassert>
#include <string>
#include <cstdio>
#include <cstring>
#include <iostream>
#include <sstream>
#include "json11.hpp"
#include <list>
#include <set>
#include <unordered_map>
#include <algorithm>
#include <type_traits>
#include <climits>
// Insert user-defined prefix code (includes, function declarations, etc)
// to set up a custom test suite
JSON11_TEST_CPP_PREFIX_CODE
using namespace json11;
using std::string;
// Check that Json has the properties we want.
#define CHECK_TRAIT(x) static_assert(std::x::value, #x)
CHECK_TRAIT(is_nothrow_constructible<Json>);
CHECK_TRAIT(is_nothrow_default_constructible<Json>);
CHECK_TRAIT(is_copy_constructible<Json>);
CHECK_TRAIT(is_nothrow_move_constructible<Json>);
CHECK_TRAIT(is_copy_assignable<Json>);
CHECK_TRAIT(is_nothrow_move_assignable<Json>);
CHECK_TRAIT(is_nothrow_destructible<Json>);
JSON11_TEST_CASE(json11_test) {
std::cout << "int int64 test" << std::endl;
const string str_it = R"({"message_id":105308320612483198,"msg_type":3,"order":0,
"ques_id":0,"session_id":105308187502051928,"site_id":122062,
"timestamp":1471140271,
"visitor_id":9941658010949867158,"worker_id":133746})";
string err_it;
auto json_it = Json::parse(str_it, err_it);
assert(json_it["message_id"].int64_value() == 105308320612483198);
assert(json_it["message_id"].uint64_value() == 105308320612483198);
assert(json_it["msg_type"].int64_value() == 3);
assert(json_it["msg_type"].uint64_value() == 3);
assert(json_it["order"].int64_value() == 0);
assert(json_it["session_id"].int64_value() == 105308187502051928);
assert(json_it["site_id"].int64_value() == 122062);
assert(json_it["site_id"].int64_value() == 122062);
std::cout << (signed long long)json_it["visitor_id"].int64_value() << std::endl;
assert((unsigned long long)(json_it["visitor_id"].int64_value()) == 9941658010949867158ull);
std::cout << "int int64 test passed!" << std::endl;
std::cout << "uint uint64 test" << std::endl;
const string str_it2 = R"({"int_max":2147483647,"int_min":-2147483648,"uint_max":4294967295, "uint_min":0,
"i64_max":9223372036854775807,"i64_min":-9223372036854775808,"ui64_max":18446744073709551615, "ui_64min":0 })";
auto json_uit = Json::parse(str_it2, err_it);
std::cout << "ORIGIN:" << str_it2 << std::endl;
string str_it2_ret;
json_uit.dump(str_it2_ret);
std::cout << "DUMP:" << str_it2_ret << std::endl;
assert(json_uit["int_max"].int64_value() == INT_MAX);
assert(json_uit["int_min"].int64_value() == INT_MIN);
assert(json_uit["uint_max"].uint64_value() == UINT_MAX);
assert(json_uit["uint_min"].uint64_value() == 0);
assert(json_uit["i64_max"].int64_value() == LLONG_MAX);
assert(json_uit["i64_min"].int64_value() == LLONG_MIN);
assert(json_uit["ui64_max"].uint64_value() == ULLONG_MAX);
assert(json_uit["ui64_min"].uint64_value() == 0);
std::cout << "int64 uint64 test passed!" << std::endl;
const string simple_test =
R"({"k1":"v1", "k2":42, "k3":["a",123,true,false,null]})";
string err;
auto json = Json::parse(simple_test, err);
std::cout << "k1: " << json["k1"].string_value() << "\n";
std::cout << "k3: " << json["k3"].dump() << "\n";
for (auto &k : json["k3"].array_items()) {
std::cout << " - " << k.dump() << "\n";
}
const string comment_test = R"({
// comment /* with nested comment */
"a": 1,
// comment
// continued
"b": "text",
/* multi
line
comment */
// and single-line comment
"c": [1, 2, 3]
})";
string err_comment;
auto json_comment = Json::parse(
comment_test, err_comment, JsonParse::COMMENTS);
if (!err_comment.empty()) {
printf("Failed: %s\n", err_comment.c_str());
} else {
printf("Result: %s\n", json_comment.dump().c_str());
}
string failing_comment_test = R"({
/* bad comment
"a": 1,
// another comment to make C parsers which don't understand raw strings happy */
})";
string err_failing_comment;
auto json_failing_comment = Json::parse(
failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
if (!err_failing_comment.empty()) {
printf("Failed: %s\n", err_failing_comment.c_str());
} else {
printf("Result: %s\n", json_failing_comment.dump().c_str());
}
failing_comment_test = R"({
/ / bad comment })";
json_failing_comment = Json::parse(
failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
if (!err_failing_comment.empty()) {
printf("Failed: %s\n", err_failing_comment.c_str());
} else {
printf("Result: %s\n", json_failing_comment.dump().c_str());
}
failing_comment_test = R"({// bad comment })";
json_failing_comment = Json::parse(
failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
if (!err_failing_comment.empty()) {
printf("Failed: %s\n", err_failing_comment.c_str());
} else {
printf("Result: %s\n", json_failing_comment.dump().c_str());
}
failing_comment_test = R"({
"a": 1
}/)";
json_failing_comment = Json::parse(
failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
if (!err_failing_comment.empty()) {
printf("Failed: %s\n", err_failing_comment.c_str());
} else {
printf("Result: %s\n", json_failing_comment.dump().c_str());
}
failing_comment_test = R"({/* bad
comment *})";
json_failing_comment = Json::parse(
failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
if (!err_failing_comment.empty()) {
printf("Failed: %s\n", err_failing_comment.c_str());
} else {
printf("Result: %s\n", json_failing_comment.dump().c_str());
}
std::list<int> l1 { 1, 2, 3 };
std::vector<int> l2 { 1, 2, 3 };
std::set<int> l3 { 1, 2, 3 };
JSON11_TEST_ASSERT(Json(l1) == Json(l2));
JSON11_TEST_ASSERT(Json(l2) == Json(l3));
std::map<string, string> m1 { { "k1", "v1" }, { "k2", "v2" } };
std::unordered_map<string, string> m2 { { "k1", "v1" }, { "k2", "v2" } };
JSON11_TEST_ASSERT(Json(m1) == Json(m2));
// Json literals
Json obj = Json::object({
{ "k1", "v1" },
{ "k2", 42.0 },
{ "k3", Json::array({ "a", 123.0, true, false, nullptr }) },
});
std::cout << "obj: " << obj.dump() << "\n";
JSON11_TEST_ASSERT(Json("a").number_value() == 0);
JSON11_TEST_ASSERT(Json("a").string_value() == "a");
JSON11_TEST_ASSERT(Json().number_value() == 0);
JSON11_TEST_ASSERT(obj == json);
JSON11_TEST_ASSERT(Json(42) == Json(42.0));
JSON11_TEST_ASSERT(Json(42) != Json(42.1));
const string unicode_escape_test =
R"([ "blah\ud83d\udca9blah\ud83dblah\udca9blah\u0000blah\u1234" ])";
const char utf8[] = "blah" "\xf0\x9f\x92\xa9" "blah" "\xed\xa0\xbd" "blah"
"\xed\xb2\xa9" "blah" "\0" "blah" "\xe1\x88\xb4";
Json uni = Json::parse(unicode_escape_test, err);
JSON11_TEST_ASSERT(uni[0].string_value().size() == (sizeof utf8) - 1);
JSON11_TEST_ASSERT(std::memcmp(uni[0].string_value().data(), utf8, sizeof utf8) == 0);
// Demonstrates the behavior change in Xcode 7 / Clang 3.7, introduced by DR1467
// and described here: https://llvm.org/bugs/show_bug.cgi?id=23812
if (JSON11_ENABLE_DR1467_CANARY) {
Json nested_array = Json::array { Json::array { 1, 2, 3 } };
JSON11_TEST_ASSERT(nested_array.is_array());
JSON11_TEST_ASSERT(nested_array.array_items().size() == 1);
JSON11_TEST_ASSERT(nested_array.array_items()[0].is_array());
JSON11_TEST_ASSERT(nested_array.array_items()[0].array_items().size() == 3);
}
{
const std::string good_json = R"( {"k1" : "v1"})";
const std::string bad_json1 = good_json + " {";
const std::string bad_json2 = good_json + R"({"k2":"v2", "k3":[)";
struct TestMultiParse {
std::string input;
std::string::size_type expect_parser_stop_pos;
size_t expect_not_empty_elms_count;
Json expect_parse_res;
} tests[] = {
{" {", 0, 0, {}},
{good_json, good_json.size(), 1, Json(std::map<string, string>{ { "k1", "v1" } })},
{bad_json1, good_json.size() + 1, 1, Json(std::map<string, string>{ { "k1", "v1" } })},
{bad_json2, good_json.size(), 1, Json(std::map<string, string>{ { "k1", "v1" } })},
{"{}", 2, 1, Json::object{}},
};
for (const auto &tst : tests) {
std::string::size_type parser_stop_pos;
std::string err;
auto res = Json::parse_multi(tst.input, parser_stop_pos, err);
JSON11_TEST_ASSERT(parser_stop_pos == tst.expect_parser_stop_pos);
JSON11_TEST_ASSERT(
(size_t)std::count_if(res.begin(), res.end(),
[](const Json& j) { return !j.is_null(); })
== tst.expect_not_empty_elms_count);
if (!res.empty()) {
JSON11_TEST_ASSERT(tst.expect_parse_res == res[0]);
}
}
}
Json my_json = Json::object {
{ "key1", "value1" },
{ "key2", false },
{ "key3", Json::array { 1, 2, 3 } },
};
std::string json_str = my_json.dump();
printf("%s\n", json_str.c_str());
class Point {
public:
int x;
int y;
Point (int x, int y) : x(x), y(y) {}
Json to_json() const { return Json::array { x, y }; }
};
std::vector<Point> points = { { 1, 2 }, { 10, 20 }, { 100, 200 } };
std::string points_json = Json(points).dump();
printf("%s\n", points_json.c_str());
}
#if JSON11_TEST_STANDALONE_MAIN
static void parse_from_stdin() {
string buf;
string line;
while (std::getline(std::cin, line)) {
buf += line + "\n";
}
string err;
auto json = Json::parse(buf, err);
if (!err.empty()) {
printf("Failed: %s\n", err.c_str());
} else {
printf("Result: %s\n", json.dump().c_str());
}
}
int main(int argc, char **argv) {
if (argc == 2 && argv[1] == string("--stdin")) {
parse_from_stdin();
return 0;
}
json11_test();
}
#endif // JSON11_TEST_STANDALONE_MAIN
// Insert user-defined suffix code (function definitions, etc)
// to set up a custom test suite
JSON11_TEST_CPP_SUFFIX_CODE
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