cppcheck/test/testcppcheck.cpp

/*
 * Cppcheck - A tool for static C/C++ code analysis
 * Copyright (C) 2007-2011 Daniel Marjamäki and Cppcheck team.
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */


// The preprocessor that Cppcheck uses is a bit special. Instead of generating
// the code for a known configuration, it generates the code for each configuration.


#include "cppcheck.h"
#include "cppcheckexecutor.h"
#include "testsuite.h"
#include "path.h"

#include <algorithm>
#include <map>
#include <string>
#include <stdexcept>

// use tinyxml with STL
#include "tinyxml/tinyxml.h"

extern std::ostringstream errout;
extern std::ostringstream output;

class TestCppcheck : public TestFixture
{
public:
    TestCppcheck() : TestFixture("TestCppcheck")
    { }

private:

    void run()
    {
        //TEST_CASE(getErrorMessages);
    }

#if 0
    bool argCheckWithCoutCerrRedirect(int argc, const char * argv[])
    {
        // redirect cout and cerr
        std::stringstream out, err;
        std::streambuf* oldCout, *oldCerr;

        // flush all old output
        std::cout.flush();
        std::cerr.flush();

        oldCout = std::cout.rdbuf(); // back up cout's streambuf
        oldCerr = std::cerr.rdbuf(); // back up cerr's streambuf

        std::cout.rdbuf(out.rdbuf()); // assign streambuf to cout
        std::cerr.rdbuf(err.rdbuf()); // assign streambuf to cerr

        bool result = argCheck(argc, argv);

        std::cout.rdbuf(oldCout); // restore cout's original streambuf
        std::cerr.rdbuf(oldCerr); // restore cerrs's original streambuf

        errout << err.str();
        output << out.str();

        return result;
    }
#endif

    void parseErrorList(const char* xmlData)
    {
        TiXmlDocument doc;
        doc.Parse(xmlData);
        // parsing must be successful
        ASSERT_EQUALS(false, doc.Error());
        // root element must be "results"
        TiXmlElement* root = doc.FirstChildElement();
        ASSERT_EQUALS("results", root->Value());

        TiXmlElement* error = root->FirstChildElement();
        std::list<std::string> idList;

        while (error)
        {
            // only childs of type "error"
            ASSERT_EQUALS("error", error->Value());
            // attributes id, msg, severity
            ASSERT_EQUALS(error->Attribute("msg") == NULL, false);
            ASSERT_EQUALS(error->Attribute("severity") == NULL, false);
            const char* id = error->Attribute("id");
            ASSERT_EQUALS(id == NULL, false);
            // no duplicate ids
            std::stringstream msg;
            msg << "Duplicate id " << id;
            ASSERT_EQUALS_MSG(idList.end() == std::find(idList.begin(), idList.end(), id), true, msg.str());
            idList.push_back(id);
            error = error->NextSiblingElement();
        }
    }

    void getErrorMessages()
    {
        errout.str("");
        CppCheck cppCheck(*this);
        cppCheck.getErrorMessages();
    }

};

REGISTER_TEST(TestCppcheck)