/* * 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/>. */ #include "cppcheck.h" #include "settings.h" #include "testsuite.h" #include "threadexecutor.h" #include <sstream> extern std::ostringstream errout; class TestSuppressions : public TestFixture { public: TestSuppressions() : TestFixture("TestSuppressions") { } private: void run() { TEST_CASE(suppressionsSettings); TEST_CASE(suppressionsMultiFile); } // Check the suppression void checkSuppression(const char code[], const std::string &suppression = "") { // Clear the error log errout.str(""); Settings settings; settings._inlineSuppressions = true; if (!suppression.empty()) { std::string r = settings.nomsg.addSuppressionLine(suppression); ASSERT_EQUALS("", r); } CppCheck cppCheck(*this, true); cppCheck.settings(settings); cppCheck.addFile("test.cpp", code); cppCheck.check(); reportUnmatchedSuppressions(cppCheck.settings().nomsg.getUnmatchedGlobalSuppressions()); } void checkSuppressionThreads(const char code[], const std::string &suppression = "") { errout.str(""); output.str(""); if (!ThreadExecutor::isEnabled()) { // Skip this check on systems which don't use this feature return; } std::vector<std::string> filenames; filenames.push_back("test.cpp"); Settings settings; settings._jobs = 1; settings._inlineSuppressions = true; if (!suppression.empty()) { std::string r = settings.nomsg.addSuppressionLine(suppression); ASSERT_EQUALS("", r); } ThreadExecutor executor(filenames, settings, *this); for (unsigned int i = 0; i < filenames.size(); ++i) executor.addFileContent(filenames[i], code); executor.check(); reportUnmatchedSuppressions(settings.nomsg.getUnmatchedGlobalSuppressions()); } // Check the suppression for multiple files void checkSuppression(const char *names[], const char *codes[], const std::string &suppression = "") { // Clear the error log errout.str(""); Settings settings; settings._inlineSuppressions = true; if (!suppression.empty()) settings.nomsg.addSuppressionLine(suppression); CppCheck cppCheck(*this, true); cppCheck.settings(settings); for (int i = 0; names[i] != NULL; ++i) cppCheck.addFile(names[i], codes[i]); cppCheck.check(); reportUnmatchedSuppressions(cppCheck.settings().nomsg.getUnmatchedGlobalSuppressions()); } void runChecks(void (TestSuppressions::*check)(const char[], const std::string &)) { // check to make sure the appropriate error is present (this->*check)("void f() {\n" " int a;\n" " a++;\n" "}\n", ""); ASSERT_EQUALS("[test.cpp:3]: (error) Uninitialized variable: a\n", errout.str()); // suppress uninitvar globally (this->*check)("void f() {\n" " int a;\n" " a++;\n" "}\n", "uninitvar"); ASSERT_EQUALS("", errout.str()); // suppress uninitvar globally, without error present (this->*check)("void f() {\n" " int a;\n" " b++;\n" "}\n", "uninitvar"); ASSERT_EQUALS("[*]: (information) Unmatched suppression: uninitvar\n", errout.str()); // suppress uninitvar for this file only (this->*check)("void f() {\n" " int a;\n" " a++;\n" "}\n", "uninitvar:test.cpp"); ASSERT_EQUALS("", errout.str()); // suppress uninitvar for this file only, without error present (this->*check)("void f() {\n" " int a;\n" " b++;\n" "}\n", "uninitvar:test.cpp"); ASSERT_EQUALS("[test.cpp]: (information) Unmatched suppression: uninitvar\n", errout.str()); // suppress all for this file only (this->*check)("void f() {\n" " int a;\n" " a++;\n" "}\n", "*:test.cpp"); ASSERT_EQUALS("", errout.str()); // suppress all for this file only, without error present (this->*check)("void f() {\n" " int a;\n" " b++;\n" "}\n", "*:test.cpp"); ASSERT_EQUALS("[test.cpp]: (information) Unmatched suppression: *\n", errout.str()); // suppress uninitvar for this file and line (this->*check)("void f() {\n" " int a;\n" " a++;\n" "}\n", "uninitvar:test.cpp:3"); ASSERT_EQUALS("", errout.str()); // suppress uninitvar for this file and line, without error present (this->*check)("void f() {\n" " int a;\n" " b++;\n" "}\n", "uninitvar:test.cpp:3"); ASSERT_EQUALS("[test.cpp:3]: (information) Unmatched suppression: uninitvar\n", errout.str()); // suppress uninitvar inline (this->*check)("void f() {\n" " int a;\n" " // cppcheck-suppress uninitvar\n" " a++;\n" "}\n", ""); ASSERT_EQUALS("", errout.str()); // suppress uninitvar inline (this->*check)("void f() {\n" " int a;\n" " // cppcheck-suppress uninitvar\n" "\n" " a++;\n" "}\n", ""); ASSERT_EQUALS("", errout.str()); // suppress uninitvar inline (this->*check)("void f() {\n" " int a;\n" " /* cppcheck-suppress uninitvar */\n" " a++;\n" "}\n", ""); ASSERT_EQUALS("", errout.str()); // suppress uninitvar inline (this->*check)("void f() {\n" " int a;\n" " /* cppcheck-suppress uninitvar */\n" "\n" " a++;\n" "}\n", ""); ASSERT_EQUALS("", errout.str()); // suppress uninitvar inline, without error present (this->*check)("void f() {\n" " int a;\n" " // cppcheck-suppress uninitvar\n" " b++;\n" "}\n", ""); ASSERT_EQUALS("[test.cpp:4]: (information) Unmatched suppression: uninitvar\n", errout.str()); } void suppressionsSettings() { runChecks(&TestSuppressions::checkSuppression); runChecks(&TestSuppressions::checkSuppressionThreads); } void suppressionsMultiFile() { const char *names[] = {"abc.cpp", "xyz.cpp", NULL}; const char *codes[] = { "void f() {\n" "}\n", "void f() {\n" " int a;\n" " a++;\n" "}\n", }; // suppress uninitvar for this file and line checkSuppression(names, codes, "uninitvar:xyz.cpp:3"); ASSERT_EQUALS("", errout.str()); } }; REGISTER_TEST(TestSuppressions)