/*
 * 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 "checkboost.h"
#include "settings.h"
#include "testsuite.h"
#include "tokenize.h"


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

private:
 Settings settings;

 void run() OVERRIDE {
 settings.addEnabled("style");
 settings.addEnabled("performance");

 TEST_CASE(BoostForeachContainerModification);
 }

 void check(const char code[]) {
 // Clear the error buffer..
 errout.str("");

 // Tokenize..
 Tokenizer tokenizer(&settings, this);
 std::istringstream istr(code);
 tokenizer.tokenize(istr, "test.cpp");

 // Check..
 CheckBoost checkBoost;
 checkBoost.runChecks(&tokenizer, &settings, this);
 }

 void BoostForeachContainerModification() {
 check("void f() {\n"
 " vector<int> data;\n"
 " BOOST_FOREACH(int i, data) {\n"
 " data.push_back(123);\n"
 " }\n"
 "}");
 ASSERT_EQUALS("[test.cpp:4]: (error) BOOST_FOREACH caches the end() iterator. It's undefined behavior if you modify the container inside.\n", errout.str());

 check("void f() {\n"
 " set<int> data;\n"
 " BOOST_FOREACH(int i, data) {\n"
 " data.insert(123);\n"
 " }\n"
 "}");
 ASSERT_EQUALS("[test.cpp:4]: (error) BOOST_FOREACH caches the end() iterator. It's undefined behavior if you modify the container inside.\n", errout.str());

 check("void f() {\n"
 " set<int> data;\n"
 " BOOST_FOREACH(const int &i, data) {\n"
 " data.erase(123);\n"
 " }\n"
 "}");
 ASSERT_EQUALS("[test.cpp:4]: (error) BOOST_FOREACH caches the end() iterator. It's undefined behavior if you modify the container inside.\n", errout.str());

 // Check single line usage
 check("void f() {\n"
 " set<int> data;\n"
 " BOOST_FOREACH(const int &i, data)\n"
 " data.clear();\n"
 "}");
 ASSERT_EQUALS("[test.cpp:4]: (error) BOOST_FOREACH caches the end() iterator. It's undefined behavior if you modify the container inside.\n", errout.str());

 // Container returned as result of a function -> Be quiet
 check("void f() {\n"
 " BOOST_FOREACH(const int &i, get_data())\n"
 " data.insert(i);\n"
 "}");
 ASSERT_EQUALS("", errout.str());

 // Break after modification (#4788)
 check("void f() {\n"
 " vector<int> data;\n"
 " BOOST_FOREACH(int i, data) {\n"
 " data.push_back(123);\n"
 " break;\n"
 " }\n"
 "}");
 ASSERT_EQUALS("", errout.str());
 }
};

REGISTER_TEST(TestBoost)