Refactoring; fuse SyntaxTestParser and SyntaxTester to SyntaxTest.

1 files changed, 205 insertions, 0 deletions

diff --git a/test/libsolidity/SyntaxTest.cpp b/test/libsolidity/SyntaxTest.cpp
new file mode 100644
index 00000000..8cbe2f36
--- /dev/null
+++ b/test/libsolidity/SyntaxTest.cpp
@@ -0,0 +1,205 @@
+/*
+	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 <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.empty() ? "\t" : _indent + _indent;
+		_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
+	{
+		_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(),
+			_path.string(),
+			0
+		));
+		numTestsAdded = 1;
+	}
+	return numTestsAdded;
+}