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//
// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
// Copyright (c) 2022 Dmitry Arkhipov (grisumbras@yandex.ru)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/json
//
// Test that header file is self-contained.
#include <boost/json/parse.hpp>
#include <boost/json/serialize.hpp>
#include <string>
#include "test.hpp"
#include "test_suite.hpp"
namespace boost {
namespace json {
class parse_test
{
public:
bool hasLocation(std::error_code const&)
{
return true;
}
bool hasLocation(system::error_code const& ec)
{
return ec.has_location();
}
template <class ErrorCode>
void
good_impl(string_view s)
{
ErrorCode ec;
auto jv = parse(s, ec);
if(! BOOST_TEST(! ec))
return;
BOOST_TEST(
serialize(jv) == s);
std::stringstream ss(s);
auto jv2 = parse(ss, ec);
if(! BOOST_TEST(! ec))
return;
BOOST_TEST( jv == jv2 );
}
template <class ErrorCode>
void
bad_impl(string_view s)
{
ErrorCode ec;
auto jv = parse(s, ec);
BOOST_TEST(ec);
BOOST_TEST(hasLocation(ec));
ec = {};
std::stringstream ss(s);
auto jv2 = parse(ss, ec);
BOOST_TEST(ec);
BOOST_TEST(hasLocation(ec));
}
void
good(string_view s)
{
good_impl<system::error_code>(s);
good_impl<std::error_code>(s);
}
void
bad(string_view s)
{
bad_impl<system::error_code>(s);
bad_impl<std::error_code>(s);
}
void
testParse()
{
good("null");
good("[1,2,3]");
good("17");
bad ("[1,2,3] #");
}
void
testMemoryUsage()
{
// string
{
std::string s(10000, '*');
s.insert(s.begin(), '\"');
s.append(1, '\"');
fail_resource mr1;
value jv1 = parse(s, &mr1);
fail_resource mr2;
value jv2(jv1, &mr2);
BOOST_TEST(mr1.bytes == mr2.bytes);
fail_resource mr3;
value jv3(&mr3);
jv3 = jv1;
BOOST_TEST(mr1.bytes == mr3.bytes);
}
// array
{
{
fail_resource mr1;
value jv1 = parse("[1]", &mr1);
fail_resource mr2;
value jv2(jv1, &mr2);
BOOST_TEST(mr1.bytes == mr2.bytes);
fail_resource mr3;
value jv3(&mr3);
jv3 = jv1;
BOOST_TEST(mr1.bytes == mr3.bytes);
}
{
std::string s;
s = "1,2,3,4";
s = s + "," + s;
s = s + "," + s;
s = s + "," + s;
s = s + "," + s;
s = s + "," + s;
s = s + "," + s;
s = s + "," + s;
s = s + "," + s;
s = "[[" + s + "]]";
fail_resource mr1;
value jv1 = parse(s, &mr1);
fail_resource mr2;
value jv2(jv1, &mr2);
BOOST_TEST(mr1.bytes == mr2.bytes);
fail_resource mr3;
value jv3(&mr3);
jv3 = jv1;
BOOST_TEST(mr1.bytes == mr3.bytes);
}
}
// object
{
std::string s;
s = "{\"0\":null";
for(int i = 1; i < 1000; ++i)
s +=
",\"" +
std::to_string(i) +
"\":null";
s.append("}");
fail_resource mr1;
value jv1 = parse(s, &mr1);
fail_resource mr2;
value jv2(jv1, &mr2);
BOOST_TEST(mr1.bytes == mr2.bytes);
fail_resource mr3;
value jv3(&mr3);
jv3 = jv1;
BOOST_TEST(mr1.bytes == mr3.bytes);
}
}
void
testIssue726()
{
parse_options opt;
opt.allow_comments = true;
opt.allow_trailing_commas = true;
char const* text1 = "[ 123, //\n]";
value arr = parse(text1, {}, opt);
BOOST_TEST(arr == array{123});
}
void
testIstream()
{
std::stringstream ss("null");
parse(ss); // does not throw
ss.clear();
ss.setstate(std::ios::failbit);
BOOST_TEST_THROWS_WITH_LOCATION( parse(ss) );
}
void
run()
{
testParse();
testMemoryUsage();
testIssue726();
testIstream();
}
};
TEST_SUITE(parse_test, "boost.json.parse");
} // namespace json
} // namespace boost
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