solidity/test/libsolidity/SyntaxTest.cpp

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/*
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/>.
*/
#include <test/libsolidity/SyntaxTest.h>
#include <test/Options.h>
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/throw_exception.hpp>
#include <fstream>
#include <memory>
#include <stdexcept>
using namespace dev;
using namespace solidity;
using namespace dev::solidity::test;
using namespace dev::solidity::test::formatting;
using namespace std;
namespace fs = boost::filesystem;
using namespace boost::unit_test;
namespace
{
int parseUnsignedInteger(string::iterator& _it, string::iterator _end)
{
if (_it == _end || !isdigit(*_it))
throw runtime_error("Invalid test expectation. Source location expected.");
int result = 0;
while (_it != _end && isdigit(*_it))
{
result *= 10;
result += *_it - '0';
++_it;
}
return result;
}
}
SyntaxTest::SyntaxTest(string const& _filename)
{
ifstream file(_filename);
if (!file)
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BOOST_THROW_EXCEPTION(runtime_error("Cannot open test contract: \"" + _filename + "\"."));
file.exceptions(ios::badbit);
m_source = parseSource(file);
m_expectations = parseExpectations(file);
}
bool SyntaxTest::run(ostream& _stream, string const& _linePrefix, bool const _formatted)
{
string const versionPragma = "pragma solidity >=0.0;\n";
m_compiler.reset();
m_compiler.addSource("", versionPragma + m_source);
m_compiler.setEVMVersion(dev::test::Options::get().evmVersion());
if (m_compiler.parse())
m_compiler.analyze();
for (auto const& currentError: filterErrors(m_compiler.errors(), true))
{
int locationStart = -1, locationEnd = -1;
if (auto location = boost::get_error_info<errinfo_sourceLocation>(*currentError))
{
// ignore the version pragma inserted by the testing tool when calculating locations.
if (location->start >= static_cast<int>(versionPragma.size()))
locationStart = location->start - versionPragma.size();
if (location->end >= static_cast<int>(versionPragma.size()))
locationEnd = location->end - versionPragma.size();
}
m_errorList.emplace_back(SyntaxTestError{
currentError->typeName(),
errorMessage(*currentError),
locationStart,
locationEnd
});
}
if (m_expectations != m_errorList)
{
string nextIndentLevel = _linePrefix + " ";
FormattedScope(_stream, _formatted, {BOLD, CYAN}) << _linePrefix << "Expected result:" << endl;
printErrorList(_stream, m_expectations, nextIndentLevel, _formatted);
FormattedScope(_stream, _formatted, {BOLD, CYAN}) << _linePrefix << "Obtained result:" << endl;
printErrorList(_stream, m_errorList, nextIndentLevel, _formatted);
return false;
}
return true;
}
void SyntaxTest::printSource(ostream& _stream, string const& _linePrefix, bool const _formatted) const
{
if (_formatted)
{
if (m_source.empty())
return;
vector<char const*> sourceFormatting(m_source.length(), formatting::RESET);
for (auto const& error: m_errorList)
if (error.locationStart >= 0 && error.locationEnd >= 0)
{
assert(static_cast<size_t>(error.locationStart) <= m_source.length());
assert(static_cast<size_t>(error.locationEnd) <= m_source.length());
bool isWarning = error.type == "Warning";
for (int i = error.locationStart; i < error.locationEnd; i++)
if (isWarning)
{
if (sourceFormatting[i] == formatting::RESET)
sourceFormatting[i] = formatting::ORANGE_BACKGROUND;
}
else
sourceFormatting[i] = formatting::RED_BACKGROUND;
}
_stream << _linePrefix << sourceFormatting.front() << m_source.front();
for (size_t i = 1; i < m_source.length(); i++)
{
if (sourceFormatting[i] != sourceFormatting[i - 1])
_stream << sourceFormatting[i];
if (m_source[i] != '\n')
_stream << m_source[i];
else
{
_stream << formatting::RESET << endl;
if (i + 1 < m_source.length())
_stream << _linePrefix << sourceFormatting[i];
}
}
_stream << formatting::RESET;
}
else
{
stringstream stream(m_source);
string line;
while (getline(stream, line))
_stream << _linePrefix << line << endl;
}
}
void SyntaxTest::printErrorList(
ostream& _stream,
vector<SyntaxTestError> const& _errorList,
string const& _linePrefix,
bool const _formatted
)
{
if (_errorList.empty())
FormattedScope(_stream, _formatted, {BOLD, GREEN}) << _linePrefix << "Success" << endl;
else
for (auto const& error: _errorList)
{
{
FormattedScope scope(_stream, _formatted, {BOLD, (error.type == "Warning") ? YELLOW : RED});
_stream << _linePrefix;
_stream << error.type << ": ";
}
if (error.locationStart >= 0 || error.locationEnd >= 0)
{
_stream << "(";
if (error.locationStart >= 0)
_stream << error.locationStart;
_stream << "-";
if (error.locationEnd >= 0)
_stream << error.locationEnd;
_stream << "): ";
}
_stream << error.message << endl;
}
}
string SyntaxTest::errorMessage(Exception const& _e)
{
if (_e.comment() && !_e.comment()->empty())
return boost::replace_all_copy(*_e.comment(), "\n", "\\n");
else
return "NONE";
}
vector<SyntaxTestError> SyntaxTest::parseExpectations(istream& _stream)
{
vector<SyntaxTestError> expectations;
string line;
while (getline(_stream, line))
{
auto it = line.begin();
skipSlashes(it, line.end());
skipWhitespace(it, line.end());
if (it == line.end()) continue;
auto typeBegin = it;
while (it != line.end() && *it != ':')
++it;
string errorType(typeBegin, it);
// skip colon
if (it != line.end()) it++;
skipWhitespace(it, line.end());
int locationStart = -1;
int locationEnd = -1;
if (it != line.end() && *it == '(')
{
++it;
locationStart = parseUnsignedInteger(it, line.end());
expect(it, line.end(), '-');
locationEnd = parseUnsignedInteger(it, line.end());
expect(it, line.end(), ')');
expect(it, line.end(), ':');
}
skipWhitespace(it, line.end());
string errorMessage(it, line.end());
expectations.emplace_back(SyntaxTestError{
move(errorType),
move(errorMessage),
locationStart,
locationEnd
});
}
return expectations;
}