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