cppcheck/test/testthreadexecutor.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2023 Cppcheck team.
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*
* 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 "redirect.h"
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#include "settings.h"
#include "filesettings.h"
#include "fixture.h"
#include "helpers.h"
#include "threadexecutor.h"
#include "timer.h"
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#include <algorithm>
#include <cstdlib>
#include <list>
#include <memory>
#include <sstream>
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#include <string>
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#include <utility>
#include <vector>
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class TestThreadExecutorBase : public TestFixture {
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public:
TestThreadExecutorBase(const char * const name, bool useFS) : TestFixture(name), useFS(useFS) {}
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private:
Settings settings = settingsBuilder().library("std.cfg").build();
bool useFS;
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std::string fprefix() const
{
if (useFS)
return "threadfs";
return "thread";
}
struct CheckOptions
{
CheckOptions() = default;
bool quiet = true;
SHOWTIME_MODES showtime = SHOWTIME_MODES::SHOWTIME_NONE;
const char* plistOutput = nullptr;
std::vector<std::string> filesList;
bool clangTidy = false;
bool executeCommandCalled = false;
std::string exe;
std::vector<std::string> args;
};
/**
* Execute check using n jobs for y files which are have
* identical data, given within data.
*/
void check(unsigned int jobs, int files, int result, const std::string &data, const CheckOptions& opt = make_default_obj{}) {
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errout.str("");
output.str("");
std::list<FileSettings> fileSettings;
std::list<std::pair<std::string, std::size_t>> filelist;
if (opt.filesList.empty()) {
for (int i = 1; i <= files; ++i) {
std::string f_s = fprefix() + "_" + std::to_string(i) + ".cpp";
filelist.emplace_back(f_s, data.size());
if (useFS) {
FileSettings fs;
fs.filename = std::move(f_s);
fileSettings.emplace_back(std::move(fs));
}
}
}
else {
for (const auto& f : opt.filesList)
{
filelist.emplace_back(f, data.size());
if (useFS) {
FileSettings fs;
fs.filename = f;
fileSettings.emplace_back(std::move(fs));
}
}
}
Settings s = settings;
s.jobs = jobs;
s.showtime = opt.showtime;
s.quiet = opt.quiet;
if (opt.plistOutput)
s.plistOutput = opt.plistOutput;
s.clangTidy = opt.clangTidy;
bool executeCommandCalled = false;
std::string exe;
std::vector<std::string> args;
// NOLINTNEXTLINE(performance-unnecessary-value-param)
auto executeFn = [&executeCommandCalled, &exe, &args](std::string e,std::vector<std::string> a,std::string,std::string&){
executeCommandCalled = true;
exe = std::move(e);
args = std::move(a);
return EXIT_SUCCESS;
};
std::vector<std::unique_ptr<ScopedFile>> scopedfiles;
scopedfiles.reserve(filelist.size());
for (std::list<std::pair<std::string, std::size_t>>::const_iterator i = filelist.cbegin(); i != filelist.cend(); ++i)
scopedfiles.emplace_back(new ScopedFile(i->first, data));
// clear files list so only fileSettings are used
if (useFS)
filelist.clear();
ThreadExecutor executor(filelist, fileSettings, s, s.nomsg, *this, executeFn);
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ASSERT_EQUALS(result, executor.check());
ASSERT_EQUALS(opt.executeCommandCalled, executeCommandCalled);
ASSERT_EQUALS(opt.exe, exe);
ASSERT_EQUALS(opt.args.size(), args.size());
for (int i = 0; i < args.size(); ++i)
{
ASSERT_EQUALS(opt.args[i], args[i]);
}
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}
void run() override {
TEST_CASE(deadlock_with_many_errors);
TEST_CASE(many_threads);
TEST_CASE(many_threads_showtime);
TEST_CASE(many_threads_plist);
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TEST_CASE(no_errors_more_files);
TEST_CASE(no_errors_less_files);
TEST_CASE(no_errors_equal_amount_files);
TEST_CASE(one_error_less_files);
TEST_CASE(one_error_several_files);
TEST_CASE(clangTidy);
TEST_CASE(showtime_top5_file);
TEST_CASE(showtime_top5_summary);
TEST_CASE(showtime_file);
TEST_CASE(showtime_summary);
TEST_CASE(showtime_file_total);
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}
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void deadlock_with_many_errors() {
std::ostringstream oss;
oss << "int main()\n"
<< "{\n";
for (int i = 0; i < 500; i++)
oss << " {int i = *((int*)0);}\n";
oss << " return 0;\n"
<< "}\n";
check(2, 3, 3, oss.str());
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}
// TODO: check the output
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void many_threads() {
check(16, 100, 100,
"int main()\n"
"{\n"
" int i = *((int*)0);\n"
" return 0;\n"
"}");
}
// #11249 - reports TSAN errors - only applies to threads not processes though
void many_threads_showtime() {
SUPPRESS;
check(16, 100, 100,
"int main()\n"
"{\n"
" int i = *((int*)0);\n"
" return 0;\n"
"}", dinit(CheckOptions, $.showtime = SHOWTIME_MODES::SHOWTIME_SUMMARY));
}
void many_threads_plist() {
const std::string plistOutput = "plist_" + fprefix() + "/";
ScopedFile plistFile("dummy", "", plistOutput);
check(16, 100, 100,
"int main()\n"
"{\n"
" int i = *((int*)0);\n"
" return 0;\n"
"}", dinit(CheckOptions, $.plistOutput = plistOutput.c_str()));
}
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void no_errors_more_files() {
check(2, 3, 0,
"int main()\n"
"{\n"
" return 0;\n"
"}");
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}
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void no_errors_less_files() {
check(2, 1, 0,
"int main()\n"
"{\n"
" return 0;\n"
"}");
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}
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void no_errors_equal_amount_files() {
check(2, 2, 0,
"int main()\n"
"{\n"
" return 0;\n"
"}");
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}
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void one_error_less_files() {
check(2, 1, 1,
"int main()\n"
"{\n"
" {int i = *((int*)0);}\n"
" return 0;\n"
"}");
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}
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void one_error_several_files() {
check(2, 20, 20,
"int main()\n"
"{\n"
" {int i = *((int*)0);}\n"
" return 0;\n"
"}");
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}
void clangTidy() {
// TODO: we currently only invoke it with ImportProject::FileSettings
if (!useFS)
return;
#ifdef _WIN32
constexpr char exe[] = "clang-tidy.exe";
#else
constexpr char exe[] = "clang-tidy";
#endif
const std::string file = fprefix() + "_1.cpp";
check(2, 1, 0,
"int main()\n"
"{\n"
" return 0;\n"
"}",
dinit(CheckOptions,
$.quiet = false,
$.clangTidy = true,
$.executeCommandCalled = true,
$.exe = exe,
$.args = {"-quiet", "-checks=*,-clang-analyzer-*,-llvm*", file, "--"}));
ASSERT_EQUALS("Checking " + file + " ...\n", output.str());
}
// TODO: provide data which actually shows values above 0
// TODO: should this be logged only once like summary?
void showtime_top5_file() {
REDIRECT; // should not cause TSAN failures as the showtime logging is synchronized
check(2, 2, 0,
"int main() {}",
dinit(CheckOptions,
$.showtime = SHOWTIME_MODES::SHOWTIME_TOP5_FILE));
// for each file: top5 results + overall + empty line
const std::string output_s = GET_REDIRECT_OUTPUT;
// for each file: top5 results + overall + empty line
ASSERT_EQUALS((5 + 1 + 1) * 2, cppcheck::count_all_of(output_s, '\n'));
}
void showtime_top5_summary() {
REDIRECT;
check(2, 2, 0,
"int main() {}",
dinit(CheckOptions,
$.showtime = SHOWTIME_MODES::SHOWTIME_TOP5_SUMMARY));
const std::string output_s = GET_REDIRECT_OUTPUT;
// once: top5 results + overall + empty line
ASSERT_EQUALS(5 + 1 + 1, cppcheck::count_all_of(output_s, '\n'));
// should only report the top5 once
ASSERT(output_s.find("1 result(s)") == std::string::npos);
ASSERT(output_s.find("2 result(s)") != std::string::npos);
}
void showtime_file() {
REDIRECT; // should not cause TSAN failures as the showtime logging is synchronized
check(2, 2, 0,
"int main() {}",
dinit(CheckOptions,
$.showtime = SHOWTIME_MODES::SHOWTIME_FILE));
const std::string output_s = GET_REDIRECT_OUTPUT;
ASSERT_EQUALS(2, cppcheck::count_all_of(output_s, "Overall time:"));
}
void showtime_summary() {
REDIRECT; // should not cause TSAN failures as the showtime logging is synchronized
check(2, 2, 0,
"int main() {}",
dinit(CheckOptions,
$.showtime = SHOWTIME_MODES::SHOWTIME_SUMMARY));
const std::string output_s = GET_REDIRECT_OUTPUT;
// should only report the actual summary once
ASSERT(output_s.find("1 result(s)") == std::string::npos);
ASSERT(output_s.find("2 result(s)") != std::string::npos);
}
void showtime_file_total() {
REDIRECT; // should not cause TSAN failures as the showtime logging is synchronized
check(2, 2, 0,
"int main() {}",
dinit(CheckOptions,
$.showtime = SHOWTIME_MODES::SHOWTIME_FILE_TOTAL));
const std::string output_s = GET_REDIRECT_OUTPUT;
ASSERT(output_s.find("Check time: " + fprefix() + "_1.cpp: ") != std::string::npos);
ASSERT(output_s.find("Check time: " + fprefix() + "_2.cpp: ") != std::string::npos);
}
// TODO: test whole program analysis
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};
class TestThreadExecutorFiles : public TestThreadExecutorBase {
public:
TestThreadExecutorFiles() : TestThreadExecutorBase("TestThreadExecutorFiles", false) {}
};
class TestThreadExecutorFS : public TestThreadExecutorBase {
public:
TestThreadExecutorFS() : TestThreadExecutorBase("TestThreadExecutorFS", true) {}
};
REGISTER_TEST(TestThreadExecutorFiles)
REGISTER_TEST(TestThreadExecutorFS)