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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 <boost/algorithm/string.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/throw_exception.hpp>
#include <cctype>
#include <fstream>
#include <memory>
#include <stdexcept>
using namespace dev;
using namespace solidity;
using namespace dev::solidity::test;
using namespace std;
namespace fs = boost::filesystem;
using namespace boost::unit_test;
template<typename IteratorType>
void skipWhitespace(IteratorType& it, IteratorType end)
{
while (it != end && isspace(*it))
++it;
}
template<typename IteratorType>
void skipSlashes(IteratorType& it, IteratorType end)
{
while (it != end && *it == '/')
++it;
}
SyntaxTest::SyntaxTest(string const& _filename)
{
ifstream file(_filename);
if (!file)
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& _indent)
{
m_errorList = parseAnalyseAndReturnError(m_source, true, true, true).second;
if (!matchesExpectations(m_errorList))
{
std::string nextIndentLevel = _indent + "\t";
_stream << _indent << "Expected result:" << endl;
printExpected(_stream, nextIndentLevel);
_stream << _indent << "Obtained result:\n";
printErrorList(_stream, m_errorList, nextIndentLevel);
return false;
}
return true;
}
void SyntaxTest::printExpected(ostream& _stream, string const& _indent) const
{
if (m_expectations.empty())
_stream << _indent << "Success" << endl;
else
for (auto const& expectation: m_expectations)
_stream << _indent << expectation.type << ": " << expectation.message << endl;
}
void SyntaxTest::printErrorList(
ostream& _stream,
ErrorList const& _errorList,
string const& _indent
) const
{
if (_errorList.empty())
_stream << _indent << "Success" << endl;
else
for (auto const& error: _errorList)
_stream << _indent << error->typeName() << ": " << errorMessage(*error) << endl;
}
bool SyntaxTest::matchesExpectations(ErrorList const& _errorList) const
{
if (_errorList.size() != m_expectations.size())
return false;
else
for (size_t i = 0; i < _errorList.size(); i++)
if (
(_errorList[i]->typeName() != m_expectations[i].type) ||
(errorMessage(*_errorList[i]) != m_expectations[i].message)
)
return false;
return true;
}
string SyntaxTest::errorMessage(Error const& _e)
{
if (_e.comment())
return boost::replace_all_copy(*_e.comment(), "\n", "\\n");
else
return "NONE";
}
string SyntaxTest::parseSource(istream& _stream)
{
string source;
string line;
string const delimiter("// ----");
while (getline(_stream, line))
if (boost::algorithm::starts_with(line, delimiter))
break;
else
source += line + "\n";
return source;
}
vector<SyntaxTestExpectation> SyntaxTest::parseExpectations(istream& _stream)
{
vector<SyntaxTestExpectation> 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());
string errorMessage(it, line.end());
expectations.emplace_back(SyntaxTestExpectation{move(errorType), move(errorMessage)});
}
return expectations;
}
#if BOOST_VERSION < 105900
test_case *make_test_case(
function<void()> const& _fn,
string const& _name,
string const& /* _filename */,
size_t /* _line */
)
{
return make_test_case(_fn, _name);
}
#endif
int SyntaxTest::registerTests(
boost::unit_test::test_suite& _suite,
boost::filesystem::path const& _basepath,
boost::filesystem::path const& _path
)
{
int numTestsAdded = 0;
fs::path fullpath = _basepath / _path;
if (fs::is_directory(fullpath))
{
test_suite* sub_suite = BOOST_TEST_SUITE(_path.filename().string());
for (auto const& entry: boost::iterator_range<fs::directory_iterator>(
fs::directory_iterator(fullpath),
fs::directory_iterator()
))
numTestsAdded += registerTests(*sub_suite, _basepath, _path / entry.path().filename());
_suite.add(sub_suite);
}
else
{
static vector<unique_ptr<string>> filenames;
filenames.emplace_back(new string(_path.string()));
_suite.add(make_test_case(
[fullpath]
{
std::stringstream errorStream;
if (!SyntaxTest(fullpath.string()).run(errorStream, ""))
BOOST_ERROR("Test expectation mismatch.\n" + errorStream.str());
},
_path.stem().string(),
*filenames.back(),
0
));
numTestsAdded = 1;
}
return numTestsAdded;
}
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