solidity/test/liblangutil/CharStream.cpp
2021-12-01 15:16:01 +01:00

137 lines
4.0 KiB
C++

/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
/**
* @author Rocky Bernstein <rocky.bernstein@consensys.net>
* @date 2019
* Unit tests for the CharStream class.
*/
#include <liblangutil/CharStream.h>
#include <liblangutil/Exceptions.h>
#include <test/Common.h>
#include <boost/test/unit_test.hpp>
using namespace std;
using namespace solidity::test;
namespace boost::test_tools::tt_detail
{
template<>
struct print_log_value<std::optional<int>>
{
void operator()(std::ostream& _out, std::optional<int> const& _value) const
{
_out << (_value ? to_string(*_value) : "[nullopt]");
}
};
template<>
struct print_log_value<nullopt_t>
{
void operator()(std::ostream& _out, nullopt_t const&) const
{
_out << "[nullopt]";
}
};
} // namespace boost::test_tools::tt_detail
namespace solidity::langutil::test
{
BOOST_AUTO_TEST_SUITE(CharStreamTest)
BOOST_AUTO_TEST_CASE(test_fail)
{
auto const source = std::make_shared<CharStream>("now is the time for testing", "source");
BOOST_CHECK('n' == source->get());
BOOST_CHECK('n' == source->get());
BOOST_CHECK('o' == source->advanceAndGet());
BOOST_CHECK('n' == source->rollback(1));
BOOST_CHECK('w' == source->setPosition(2));
BOOST_REQUIRE_THROW(
source->setPosition(200),
::solidity::langutil::InternalCompilerError
);
}
namespace
{
std::optional<int> toPosition(int _line, int _column, string const& _text)
{
return CharStream{_text, "source"}.translateLineColumnToPosition(
LineColumn{_line, _column}
);
}
}
BOOST_AUTO_TEST_CASE(translateLineColumnToPosition)
{
BOOST_CHECK_EQUAL(toPosition(-1, 0, "ABC"), nullopt);
BOOST_CHECK_EQUAL(toPosition(0, -1, "ABC"), nullopt);
BOOST_CHECK_EQUAL(toPosition(0, 0, ""), 0);
BOOST_CHECK_EQUAL(toPosition(1, 0, ""), nullopt);
BOOST_CHECK_EQUAL(toPosition(0, 1, ""), nullopt);
// With last line containing no LF
BOOST_CHECK_EQUAL(toPosition(0, 0, "ABC"), 0);
BOOST_CHECK_EQUAL(toPosition(0, 1, "ABC"), 1);
BOOST_CHECK_EQUAL(toPosition(0, 2, "ABC"), 2);
BOOST_CHECK_EQUAL(toPosition(0, 3, "ABC"), 3);
BOOST_CHECK_EQUAL(toPosition(0, 4, "ABC"), nullopt);
BOOST_CHECK_EQUAL(toPosition(1, 0, "ABC"), nullopt);
BOOST_CHECK_EQUAL(toPosition(0, 3, "ABC\nDEF"), 3);
BOOST_CHECK_EQUAL(toPosition(0, 4, "ABC\nDEF"), nullopt);
BOOST_CHECK_EQUAL(toPosition(1, 0, "ABC\nDEF"), 4);
BOOST_CHECK_EQUAL(toPosition(1, 1, "ABC\nDEF"), 5);
BOOST_CHECK_EQUAL(toPosition(1, 2, "ABC\nDEF"), 6);
BOOST_CHECK_EQUAL(toPosition(1, 3, "ABC\nDEF"), 7);
BOOST_CHECK_EQUAL(toPosition(1, 4, "ABC\nDEF"), nullopt);
BOOST_CHECK_EQUAL(toPosition(2, 0, "ABC\nDEF"), nullopt);
BOOST_CHECK_EQUAL(toPosition(2, 1, "ABC\nDEF"), nullopt);
// With last line containing LF
BOOST_CHECK_EQUAL(toPosition(0, 0, "ABC\nDEF\n"), 0);
BOOST_CHECK_EQUAL(toPosition(0, 1, "ABC\nDEF\n"), 1);
BOOST_CHECK_EQUAL(toPosition(0, 2, "ABC\nDEF\n"), 2);
BOOST_CHECK_EQUAL(toPosition(1, 0, "ABC\nDEF\n"), 4);
BOOST_CHECK_EQUAL(toPosition(1, 1, "ABC\nDEF\n"), 5);
BOOST_CHECK_EQUAL(toPosition(1, 2, "ABC\nDEF\n"), 6);
BOOST_CHECK_EQUAL(toPosition(1, 3, "ABC\nDEF\n"), 7);
BOOST_CHECK_EQUAL(toPosition(1, 4, "ABC\nDEF\n"), nullopt);
BOOST_CHECK_EQUAL(toPosition(2, 0, "ABC\nDEF\n"), 8);
BOOST_CHECK_EQUAL(toPosition(2, 1, "ABC\nDEF\n"), nullopt);
BOOST_CHECK_EQUAL(toPosition(2, 0, "ABC\nDEF\nGHI\n"), 8);
BOOST_CHECK_EQUAL(toPosition(2, 1, "ABC\nDEF\nGHI\n"), 9);
BOOST_CHECK_EQUAL(toPosition(2, 2, "ABC\nDEF\nGHI\n"), 10);
}
BOOST_AUTO_TEST_SUITE_END()
}