solidity/test/TestCase.h

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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/>.
*/
#pragma once
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#include <test/TestCaseReader.h>
#include <liblangutil/EVMVersion.h>
#include <boost/filesystem.hpp>
#include <string>
namespace solidity::frontend::test
{
/**
* Common superclass of anything that can be run via isoltest.
*/
class TestCase
{
public:
struct Config
{
std::string filename;
langutil::EVMVersion evmVersion;
bool enforceCompileViaYul;
};
enum class TestResult { Success, Failure, FatalError };
using TestCaseCreator = std::unique_ptr<TestCase>(*)(Config const&);
virtual ~TestCase() = default;
/// Runs the test case.
/// Outputs error messages to @arg _stream. Each line of output is prefixed with @arg _linePrefix.
/// Optionally, color-coding can be enabled (if @arg _formatted is set to true).
/// @returns true, if the test case succeeds, false otherwise
virtual TestResult run(std::ostream& _stream, std::string const& _linePrefix = "", bool const _formatted = false) = 0;
/// Outputs the test contract to @arg _stream.
/// Each line of output is prefixed with @arg _linePrefix.
/// If @arg _formatted is true, color-coding may be used to indicate
/// error locations in the contract, if applicable.
virtual void printSource(std::ostream &_stream, std::string const &_linePrefix = "", bool const _formatted = false) const;
/// Outputs settings.
virtual void printSettings(std::ostream &_stream, std::string const &_linePrefix = "", bool const _formatted = false);
/// Outputs updated settings
virtual void printUpdatedSettings(std::ostream& _stream, std::string const& _linePrefix = "");
/// Outputs test expectations to @arg _stream that match the actual results of the test.
/// Each line of output is prefixed with @arg _linePrefix.
virtual void printUpdatedExpectations(std::ostream& _stream, std::string const& _linePrefix) const;
static bool isTestFilename(boost::filesystem::path const& _filename);
/// Returns true, if the test case is supported in the current environment and false
/// otherwise which causes this test to be skipped.
/// This might check e.g. for restrictions on the EVM version.
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/// The function throws an exception if there are unread settings.
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bool shouldRun();
protected:
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// Used by ASTJSONTest, the only TestCase class with a custom parser of the test files.
TestCase() = default;
TestCase(std::string const& _filename): m_reader(_filename) {}
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static void expect(std::string::iterator& _it, std::string::iterator _end, std::string::value_type _c);
template<typename IteratorType>
static void skipWhitespace(IteratorType& _it, IteratorType _end)
{
while (_it != _end && isspace(*_it))
++_it;
}
template<typename IteratorType>
static void skipSlashes(IteratorType& _it, IteratorType _end)
{
while (_it != _end && *_it == '/')
++_it;
}
void printIndented(std::ostream& _stream, std::string const& _output, std::string const& _linePrefix = "") const;
TestCase::TestResult checkResult(std::ostream& _stream, const std::string& _linePrefix, bool const _formatted);
std::string m_source;
std::string m_obtainedResult;
std::string m_expectation;
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TestCaseReader m_reader;
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bool m_shouldRun = true;
};
class EVMVersionRestrictedTestCase: public TestCase
{
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protected:
EVMVersionRestrictedTestCase(std::string const& _filename);
};
}