/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2020 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/>.
*/

#include "config.h"
#include "cppcheckexecutor.h"
#include "errorlogger.h"
#include "filelister.h"
#include "path.h"
#include "pathmatch.h"
#include "redirect.h"
#include "settings.h"
#include "testsuite.h"

#include <algorithm>
#include <cstddef>
#include <cstring>
#include <fstream>
#include <iterator>
#include <map>
#include <sstream>
#include <string>
#include <utility>
#include <vector>


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

private:

 void run() OVERRIDE {
 TEST_CASE(runSamples);
 TEST_CASE(runConsoleCodePageTranslationOnWindows);
 }

 void runSamples() const {
 REDIRECT;

 std::map<std::string, std::size_t> files;
 const std::vector<std::string> masks;
 const PathMatch matcher(masks);
#ifdef _WIN32
 FileLister::recursiveAddFiles(files, "..\\samples", matcher);
#else
 FileLister::recursiveAddFiles(files, "samples", matcher);
#endif
 for (std::map<std::string, std::size_t>::const_iterator i = files.begin(); i != files.end(); ++i) {
 if (i->first.find("memleak") != std::string::npos)
 continue;
 CLEAR_REDIRECT_ERROUT;
 const char* const path = i->first.c_str();
 const char * const argv[] = {
#ifdef _WIN32
 ".\\..\\testrunner",
#else
 "./testrunner",
#endif
 "--enable=style,warning,performance,portability", "--inconclusive", "-rp", "-f", "-q", path
 };
 std::string filename = i->first.substr(i->first.find_last_of("/\\")+1);
 if (filename == "good.cpp" || filename == "good.c") {
 CppCheckExecutor exec;
 exec.check(7, argv);
 ASSERT_EQUALS_MSG("", GET_REDIRECT_ERROUT, i->first);
 } else if (filename == "bad.cpp" || filename == "bad.c") {
 CppCheckExecutor exec;
 exec.check(7, argv);
 std::string expected_filename = Path::getPathFromFilename(i->first) + "out.txt";
 std::ifstream ifs(expected_filename);
 std::string expected((std::istreambuf_iterator<char>(ifs)), std::istreambuf_iterator<char>());
 std::string actual = GET_REDIRECT_ERROUT;
 // We need some uniformization to make this work on Unix and Windows
 std::replace(actual.begin(), actual.end(), '/', '\\'); // Uniformize slashes.
 while (actual.find("..\\") != std::string::npos)
 actual.erase(actual.find("..\\"), 3); // Remove '..\'
 ASSERT_EQUALS_MSG(expected, actual, i->first);
 }
 }
 }

 class CppCheckExecutor2 : public CppCheckExecutor {
 public:
 void settings(const Settings &set) {
 setSettings(set);
 }

 };

 void runConsoleCodePageTranslationOnWindows() const {
 REDIRECT;

 std::vector<std::string> msgs = {
 "ASCII", // first entry should be using only ASCII
 "kääk",
 "Português"
 // "日本語",
 // "한국어",
 // "Русский",
 // "中文",
 };

 Settings set1;
 Settings setXML;
 setXML.xml = true;
 setXML.xml_version = 2;
 CppCheckExecutor2 exec;
 exec.settings(set1);
 CppCheckExecutor2 execXML;
 execXML.settings(setXML);

 for (std::vector<std::string>::const_iterator i = msgs.begin(); i != msgs.end(); ++i) {
 CLEAR_REDIRECT_OUTPUT;
 CLEAR_REDIRECT_ERROUT;

 exec.reportOut(*i);

 ErrorMessage errMessage;
 errMessage.setmsg(*i);

 // no xml option
 exec.reportInfo(errMessage);

#ifdef _WIN32
 // expect changes through code page translation except for the 'ASCII' case
 if (i == msgs.begin()) {
 ASSERT_EQUALS(*i + "\n", GET_REDIRECT_OUTPUT);
 ASSERT_EQUALS(*i + "\n", GET_REDIRECT_ERROUT);
 } else {
 ASSERT(*i + "\n" != GET_REDIRECT_OUTPUT);
 ASSERT(*i + "\n" != GET_REDIRECT_ERROUT);
 }
#else
 // do not expect any code page translation
 ASSERT_EQUALS(*i + "\n", GET_REDIRECT_OUTPUT);
 ASSERT_EQUALS(*i + "\n", GET_REDIRECT_ERROUT);
#endif

 CLEAR_REDIRECT_ERROUT;
 // possible change of msg for xml option
 // with ErrorMessage::fixInvalidChars(), plus additional XML formatting
 execXML.reportInfo(errMessage);
 // undo the effects of "ErrorMessage::fixInvalidChars()"
 // replacing octal constants with characters
 std::string myErr;
 std::string myErrOrg = GET_REDIRECT_ERROUT;
 std::string::const_iterator from = myErrOrg.begin();
 while (from != myErrOrg.end()) {
 if (*from == '\\') {
 ++from;
 unsigned c;
 // expect three digits
 std::istringstream es(std::string(from, from + 3));
 es >> std::oct >> c;
 ++from;
 ++from;
 myErr.push_back(c);
 } else {
 myErr.push_back(*from);
 }
 ++from;
 }

 ASSERT(std::string::npos != myErr.find(*i));
 }
 }
};

REGISTER_TEST(TestSamples)