cppcheck/test/testsuppressions.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2023 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/>.
*/
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#include "config.h"
#include "cppcheck.h"
#include "cppcheckexecutor.h"
#include "errortypes.h"
#include "processexecutor.h"
#include "settings.h"
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#include "suppressions.h"
#include "fixture.h"
#include "helpers.h"
#include "threadexecutor.h"
#include "singleexecutor.h"
#include <algorithm>
#include <cstddef>
#include <cstring>
#include <functional>
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#include <list>
#include <map>
#include <memory>
#include <sstream> // IWYU pragma: keep
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#include <string>
#include <utility>
#include <vector>
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class TestSuppressions : public TestFixture {
public:
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TestSuppressions() : TestFixture("TestSuppressions") {}
private:
void run() override {
TEST_CASE(suppressionsBadId1);
TEST_CASE(suppressionsDosFormat); // Ticket #1836
TEST_CASE(suppressionsFileNameWithColon); // Ticket #1919 - filename includes colon
TEST_CASE(suppressionsGlob);
TEST_CASE(suppressionsFileNameWithExtraPath);
TEST_CASE(suppressionsSettings);
TEST_CASE(suppressionsSettingsThreads);
#if !defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
TEST_CASE(suppressionsSettingsProcesses);
#endif
TEST_CASE(suppressionsMultiFile);
TEST_CASE(suppressionsPathSeparator);
TEST_CASE(suppressionsLine0);
TEST_CASE(suppressionsFileComment);
TEST_CASE(inlinesuppress);
TEST_CASE(inlinesuppress_symbolname);
TEST_CASE(inlinesuppress_comment);
TEST_CASE(multi_inlinesuppress);
TEST_CASE(multi_inlinesuppress_comment);
TEST_CASE(globalSuppressions); // Testing that global suppressions work (#8515)
TEST_CASE(inlinesuppress_unusedFunction); // #4210 - unusedFunction
TEST_CASE(globalsuppress_unusedFunction); // #4946
TEST_CASE(suppressionWithRelativePaths); // #4733
TEST_CASE(suppressingSyntaxErrors); // #7076
TEST_CASE(suppressingSyntaxErrorsInline); // #5917
TEST_CASE(suppressingSyntaxErrorsWhileFileRead); // PR #1333
TEST_CASE(symbol);
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TEST_CASE(unusedFunction);
TEST_CASE(suppressingSyntaxErrorAndExitCode);
TEST_CASE(suppressLocal);
TEST_CASE(suppressUnmatchedSuppressions);
}
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void suppressionsBadId1() const {
Suppressions suppressions;
std::istringstream s1("123");
ASSERT_EQUALS("Failed to add suppression. Invalid id \"123\"", suppressions.parseFile(s1));
std::istringstream s2("obsoleteFunctionsrand_r");
ASSERT_EQUALS("", suppressions.parseFile(s2));
}
static Suppressions::ErrorMessage errorMessage(const std::string &errorId) {
Suppressions::ErrorMessage ret;
ret.errorId = errorId;
ret.hash = 0;
ret.lineNumber = 0;
ret.certainty = Certainty::normal;
return ret;
}
static Suppressions::ErrorMessage errorMessage(const std::string &errorId, const std::string &file, int line) {
Suppressions::ErrorMessage ret;
ret.errorId = errorId;
ret.setFileName(file);
ret.lineNumber = line;
return ret;
}
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void suppressionsDosFormat() const {
Suppressions suppressions;
std::istringstream s("abc\r\n"
"def\r\n");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("abc")));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("def")));
}
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void suppressionsFileNameWithColon() const {
Suppressions suppressions;
std::istringstream s("errorid:c:\\foo.cpp\n"
"errorid:c:\\bar.cpp:12");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "c:/foo.cpp", 1111)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "c:/bar.cpp", 10)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "c:/bar.cpp", 12)));
}
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void suppressionsGlob() const {
// Check for syntax errors in glob
{
Suppressions suppressions;
std::istringstream s("errorid:**.cpp\n");
ASSERT_EQUALS("Failed to add suppression. Invalid glob pattern '**.cpp'.", suppressions.parseFile(s));
}
// Check that globbing works
{
Suppressions suppressions;
std::istringstream s("errorid:x*.cpp\n"
"errorid:y?.cpp\n"
"errorid:test.c*");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "abc.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "ya.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "y.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "test.c", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "test.cpp", 1)));
}
// Check that both a filename match and a glob match apply
{
Suppressions suppressions;
std::istringstream s("errorid:x*.cpp\n"
"errorid:xyz.cpp:1\n"
"errorid:a*.cpp:1\n"
"errorid:abc.cpp:2");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp", 2)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "abc.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "abc.cpp", 2)));
}
}
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void suppressionsFileNameWithExtraPath() const {
// Ticket #2797
Suppressions suppressions;
suppressions.addSuppressionLine("errorid:./a.c:123");
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "a.c", 123)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "x/../a.c", 123)));
}
// Check the suppression
unsigned int checkSuppression(const char code[], const std::string &suppression = emptyString) {
std::map<std::string, std::string> files;
files["test.cpp"] = code;
return checkSuppression(files, suppression);
}
// Check the suppression for multiple files
unsigned int checkSuppression(std::map<std::string, std::string> &f, const std::string &suppression = emptyString) {
// Clear the error log
errout.str("");
output.str("");
std::map<std::string, std::size_t> files;
for (std::map<std::string, std::string>::const_iterator i = f.cbegin(); i != f.cend(); ++i) {
files[i->first] = i->second.size();
}
CppCheck cppCheck(*this, true, nullptr);
Settings& settings = cppCheck.settings();
settings.jobs = 1;
settings.inlineSuppressions = true;
settings.severity.enable(Severity::information);
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if (suppression == "unusedFunction")
settings.checks.setEnabled(Checks::unusedFunction, true);
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if (!suppression.empty()) {
EXPECT_EQ("", settings.nomsg.addSuppressionLine(suppression));
}
SingleExecutor executor(cppCheck, files, settings, settings.nomsg, *this);
std::vector<std::unique_ptr<ScopedFile>> scopedfiles;
scopedfiles.reserve(files.size());
for (std::map<std::string, std::string>::const_iterator i = f.cbegin(); i != f.cend(); ++i)
scopedfiles.emplace_back(new ScopedFile(i->first, i->second));
const unsigned int exitCode = executor.check();
CppCheckExecutor::reportSuppressions(settings, false, files, *this);
return exitCode;
}
unsigned int checkSuppressionThreads(const char code[], const std::string &suppression = emptyString) {
errout.str("");
output.str("");
std::map<std::string, std::size_t> files;
files["test.cpp"] = strlen(code);
Settings settings;
settings.jobs = 2;
settings.inlineSuppressions = true;
settings.severity.enable(Severity::information);
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if (!suppression.empty()) {
EXPECT_EQ("", settings.nomsg.addSuppressionLine(suppression));
}
ThreadExecutor executor(files, settings, settings.nomsg, *this);
std::vector<std::unique_ptr<ScopedFile>> scopedfiles;
scopedfiles.reserve(files.size());
for (std::map<std::string, std::size_t>::const_iterator i = files.cbegin(); i != files.cend(); ++i)
scopedfiles.emplace_back(new ScopedFile(i->first, code));
const unsigned int exitCode = executor.check();
CppCheckExecutor::reportSuppressions(settings, false, files, *this);
return exitCode;
}
#if !defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
unsigned int checkSuppressionProcesses(const char code[], const std::string &suppression = emptyString) {
errout.str("");
output.str("");
std::map<std::string, std::size_t> files;
files["test.cpp"] = strlen(code);
Settings settings;
settings.jobs = 2;
settings.inlineSuppressions = true;
settings.severity.enable(Severity::information);
if (!suppression.empty()) {
EXPECT_EQ("", settings.nomsg.addSuppressionLine(suppression));
}
ProcessExecutor executor(files, settings, settings.nomsg, *this);
std::vector<std::unique_ptr<ScopedFile>> scopedfiles;
scopedfiles.reserve(files.size());
for (std::map<std::string, std::size_t>::const_iterator i = files.cbegin(); i != files.cend(); ++i)
scopedfiles.emplace_back(new ScopedFile(i->first, code));
const unsigned int exitCode = executor.check();
CppCheckExecutor::reportSuppressions(settings, false, files, *this);
return exitCode;
}
#endif
void runChecks(unsigned int (TestSuppressions::*check)(const char[], const std::string &)) {
// check to make sure the appropriate error is present
ASSERT_EQUALS(1, (this->*check)("void f() {\n"
" int a;\n"
" a++;\n"
"}\n",
""));
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ASSERT_EQUALS("[test.cpp:3]: (error) Uninitialized variable: a\n", errout.str());
// suppress uninitvar globally
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" a++;\n"
"}\n",
"uninitvar"));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar globally, without error present
ASSERT_EQUALS(0, (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
ASSERT_EQUALS(0, (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",
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"uninitvar:test.cpp");
ASSERT_EQUALS("[test.cpp]: (information) Unmatched suppression: uninitvar\n", errout.str());
// suppress all for this file only
ASSERT_EQUALS(0, (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
ASSERT_EQUALS(0, (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"
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" b++;\n"
"}\n",
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"uninitvar:test.cpp:3");
ASSERT_EQUALS("[test.cpp:3]: (information) Unmatched suppression: uninitvar\n", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" // cppcheck-suppress uninitvar\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" // cppcheck-suppress uninitvar\n"
"\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" a++;// cppcheck-suppress uninitvar\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" /* cppcheck-suppress uninitvar */\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" /* cppcheck-suppress uninitvar */\n"
"\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" a++;/* cppcheck-suppress uninitvar */\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" // cppcheck-suppress[uninitvar]\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" // cppcheck-suppress[uninitvar]\n"
" a++;\n"
"\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" a++;// cppcheck-suppress[uninitvar]\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" /* cppcheck-suppress[uninitvar]*/\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" /* cppcheck-suppress[uninitvar]*/\n"
"\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" int a;\n"
" a++;/* cppcheck-suppress[uninitvar]*/\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline, with asm before (#6813)
ASSERT_EQUALS(0, (this->*check)("void f() {\n"
" __asm {\n"
" foo\n"
" }"
" int a;\n"
" // cppcheck-suppress uninitvar\n"
" a++;\n"
"}",
""));
ASSERT_EQUALS("", errout.str());
// suppress uninitvar inline, without error present
(this->*check)("void f() {\n"
" int a;\n"
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" // cppcheck-suppress uninitvar\n"
" b++;\n"
"}\n",
"");
ASSERT_EQUALS("[test.cpp:4]: (information) Unmatched suppression: uninitvar\n", errout.str());
// #5746 - exitcode
ASSERT_EQUALS(1U,
(this->*check)("int f() {\n"
" int a; return a;\n"
"}\n",
""));
ASSERT_EQUALS(0U,
(this->*check)("int f() {\n"
" int a; return a;\n"
"}\n",
"uninitvar"));
}
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void suppressionsSettings() {
runChecks(&TestSuppressions::checkSuppression);
}
void suppressionsSettingsThreads() {
runChecks(&TestSuppressions::checkSuppressionThreads);
}
#if !defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
void suppressionsSettingsProcesses() {
runChecks(&TestSuppressions::checkSuppressionProcesses);
}
#endif
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void suppressionsMultiFile() {
std::map<std::string, std::string> files;
files["abc.cpp"] = "void f() {\n"
"}\n";
files["xyz.cpp"] = "void f() {\n"
" int a;\n"
" a++;\n"
"}\n";
// suppress uninitvar for this file and line
ASSERT_EQUALS(0, checkSuppression(files, "uninitvar:xyz.cpp:3"));
ASSERT_EQUALS("", errout.str());
}
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void suppressionsPathSeparator() const {
const Suppressions::Suppression s1("*", "test/foo/*");
ASSERT_EQUALS(true, s1.isSuppressed(errorMessage("someid", "test/foo/bar.cpp", 142)));
const Suppressions::Suppression s2("abc", "include/1.h");
ASSERT_EQUALS(true, s2.isSuppressed(errorMessage("abc", "include/1.h", 142)));
}
void suppressionsLine0() const {
Suppressions suppressions;
suppressions.addSuppressionLine("syntaxError:*:0");
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("syntaxError", "test.cpp", 0)));
}
void suppressionsFileComment() const {
std::istringstream file1("# comment\n"
"abc");
Suppressions suppressions1;
suppressions1.parseFile(file1);
ASSERT_EQUALS(true, suppressions1.isSuppressed(errorMessage("abc", "test.cpp", 123)));
std::istringstream file2("// comment\n"
"abc");
Suppressions suppressions2;
suppressions2.parseFile(file2);
ASSERT_EQUALS(true, suppressions2.isSuppressed(errorMessage("abc", "test.cpp", 123)));
std::istringstream file3("abc // comment");
Suppressions suppressions3;
suppressions3.parseFile(file3);
ASSERT_EQUALS(true, suppressions3.isSuppressed(errorMessage("abc", "test.cpp", 123)));
std::istringstream file4("abc\t\t # comment");
Suppressions suppressions4;
suppressions4.parseFile(file4);
ASSERT_EQUALS(true, suppressions4.isSuppressed(errorMessage("abc", "test.cpp", 123)));
std::istringstream file5("abc:test.cpp\t\t # comment");
Suppressions suppressions5;
suppressions5.parseFile(file5);
ASSERT_EQUALS(true, suppressions5.isSuppressed(errorMessage("abc", "test.cpp", 123)));
std::istringstream file6("abc:test.cpp:123\t\t # comment with . inside");
Suppressions suppressions6;
suppressions6.parseFile(file6);
ASSERT_EQUALS(true, suppressions6.isSuppressed(errorMessage("abc", "test.cpp", 123)));
}
void inlinesuppress() const {
Suppressions::Suppression s;
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std::string msg;
ASSERT_EQUALS(false, s.parseComment("/* some text */", &msg));
ASSERT_EQUALS(false, s.parseComment("/* cppcheck-suppress */", &msg));
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msg.clear();
ASSERT_EQUALS(true, s.parseComment("/* cppcheck-suppress id */", &msg));
ASSERT_EQUALS("", msg);
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ASSERT_EQUALS(true, s.parseComment("/* cppcheck-suppress id some text */", &msg));
ASSERT_EQUALS("Bad suppression attribute 'some'. You can write comments in the comment after a ; or //. Valid suppression attributes; symbolName=sym", msg);
}
void inlinesuppress_symbolname() {
ASSERT_EQUALS(0, checkSuppression("void f() {\n"
" int a;\n"
" /* cppcheck-suppress uninitvar symbolName=a */\n"
" a++;\n"
"}\n",
""));
ASSERT_EQUALS("", errout.str());
ASSERT_EQUALS(1, checkSuppression("void f() {\n"
" int a,b;\n"
" /* cppcheck-suppress uninitvar symbolName=b */\n"
" a++; b++;\n"
"}\n",
""));
ASSERT_EQUALS("[test.cpp:4]: (error) Uninitialized variable: a\n", errout.str());
}
void inlinesuppress_comment() const {
Suppressions::Suppression s;
std::string errMsg;
ASSERT_EQUALS(true, s.parseComment("// cppcheck-suppress abc ; some comment", &errMsg));
ASSERT_EQUALS("", errMsg);
ASSERT_EQUALS(true, s.parseComment("// cppcheck-suppress abc // some comment", &errMsg));
ASSERT_EQUALS("", errMsg);
ASSERT_EQUALS(true, s.parseComment("// cppcheck-suppress abc -- some comment", &errMsg));
ASSERT_EQUALS("", errMsg);
}
void multi_inlinesuppress() const {
std::vector<Suppressions::Suppression> suppressions;
std::string errMsg;
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId]", &errMsg);
ASSERT_EQUALS(1, suppressions.size());
ASSERT_EQUALS("errorId", suppressions[0].errorId);
ASSERT_EQUALS("", suppressions[0].symbolName);
ASSERT_EQUALS("", errMsg);
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId symbolName=arr]", &errMsg);
ASSERT_EQUALS(1, suppressions.size());
ASSERT_EQUALS("errorId", suppressions[0].errorId);
ASSERT_EQUALS("arr", suppressions[0].symbolName);
ASSERT_EQUALS("", errMsg);
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId symbolName=]", &errMsg);
ASSERT_EQUALS(1, suppressions.size());
ASSERT_EQUALS("errorId", suppressions[0].errorId);
ASSERT_EQUALS("", suppressions[0].symbolName);
ASSERT_EQUALS("", errMsg);
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId1, errorId2 symbolName=arr]", &errMsg);
ASSERT_EQUALS(2, suppressions.size());
ASSERT_EQUALS("errorId1", suppressions[0].errorId);
ASSERT_EQUALS("", suppressions[0].symbolName);
ASSERT_EQUALS("errorId2", suppressions[1].errorId);
ASSERT_EQUALS("arr", suppressions[1].symbolName);
ASSERT_EQUALS("", errMsg);
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[]", &errMsg);
ASSERT_EQUALS(0, suppressions.size());
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ASSERT_EQUALS(true, errMsg.empty());
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId", &errMsg);
ASSERT_EQUALS(0, suppressions.size());
ASSERT_EQUALS(false, errMsg.empty());
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress errorId", &errMsg);
ASSERT_EQUALS(0, suppressions.size());
ASSERT_EQUALS(false, errMsg.empty());
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId1 errorId2 symbolName=arr]", &errMsg);
ASSERT_EQUALS(0, suppressions.size());
ASSERT_EQUALS(false, errMsg.empty());
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId1, errorId2 symbol=arr]", &errMsg);
ASSERT_EQUALS(0, suppressions.size());
ASSERT_EQUALS(false, errMsg.empty());
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("// cppcheck-suppress[errorId1, errorId2 symbolName]", &errMsg);
ASSERT_EQUALS(0, suppressions.size());
ASSERT_EQUALS(false, errMsg.empty());
}
void multi_inlinesuppress_comment() const {
std::vector<Suppressions::Suppression> suppressions;
std::string errMsg;
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("//cppcheck-suppress[errorId1, errorId2 symbolName=arr]", &errMsg);
ASSERT_EQUALS(2, suppressions.size());
ASSERT_EQUALS(true, errMsg.empty());
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("//cppcheck-suppress[errorId1, errorId2 symbolName=arr] some text", &errMsg);
ASSERT_EQUALS(2, suppressions.size());
ASSERT_EQUALS(true, errMsg.empty());
errMsg = "";
suppressions=Suppressions::parseMultiSuppressComment("/*cppcheck-suppress[errorId1, errorId2 symbolName=arr]*/", &errMsg);
ASSERT_EQUALS(2, suppressions.size());
ASSERT_EQUALS(true, errMsg.empty());
}
void globalSuppressions() { // Testing that Cppcheck::useGlobalSuppressions works (#8515)
errout.str("");
CppCheck cppCheck(*this, false, nullptr); // <- do not "use global suppressions". pretend this is a thread that just checks a file.
Settings& settings = cppCheck.settings();
settings.nomsg.addSuppressionLine("uninitvar");
settings.exitCode = 1;
const char code[] = "int f() { int a; return a; }";
ASSERT_EQUALS(0, cppCheck.check("test.c", code)); // <- no unsuppressed error is seen
ASSERT_EQUALS("[test.c:1]: (error) Uninitialized variable: a\n", errout.str()); // <- report error so ThreadExecutor can suppress it and make sure the global suppression is matched.
}
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void inlinesuppress_unusedFunction() const { // #4210, #4946 - wrong report of "unmatchedSuppression" for "unusedFunction"
Suppressions suppressions;
Suppressions::Suppression suppression("unusedFunction", "test.c", 3);
suppression.checked = true; // have to do this because fixes for #5704
suppressions.addSuppression(std::move(suppression));
ASSERT_EQUALS(true, !suppressions.getUnmatchedLocalSuppressions("test.c", true).empty());
ASSERT_EQUALS(false, !suppressions.getUnmatchedGlobalSuppressions(true).empty());
ASSERT_EQUALS(false, !suppressions.getUnmatchedLocalSuppressions("test.c", false).empty());
ASSERT_EQUALS(false, !suppressions.getUnmatchedGlobalSuppressions(false).empty());
}
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void globalsuppress_unusedFunction() const { // #4946 - wrong report of "unmatchedSuppression" for "unusedFunction"
Suppressions suppressions;
suppressions.addSuppressionLine("unusedFunction:*");
ASSERT_EQUALS(false, !suppressions.getUnmatchedLocalSuppressions("test.c", true).empty());
ASSERT_EQUALS(true, !suppressions.getUnmatchedGlobalSuppressions(true).empty());
ASSERT_EQUALS(false, !suppressions.getUnmatchedLocalSuppressions("test.c", false).empty());
ASSERT_EQUALS(false, !suppressions.getUnmatchedGlobalSuppressions(false).empty());
}
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void suppressionWithRelativePaths() {
// Clear the error log
errout.str("");
CppCheck cppCheck(*this, true, nullptr);
Settings& settings = cppCheck.settings();
settings.severity.enable(Severity::style);
settings.inlineSuppressions = true;
settings.relativePaths = true;
settings.basePaths.emplace_back("/somewhere");
const char code[] =
"struct Point\n"
"{\n"
" // cppcheck-suppress unusedStructMember\n"
" int x;\n"
" // cppcheck-suppress unusedStructMember\n"
" int y;\n"
"};";
cppCheck.check("/somewhere/test.cpp", code);
ASSERT_EQUALS("",errout.str());
}
void suppressingSyntaxErrors() { // syntaxErrors should be suppressible (#7076)
const char code[] = "if if\n";
ASSERT_EQUALS(0, checkSuppression(code, "syntaxError:test.cpp:1"));
ASSERT_EQUALS("", errout.str());
}
void suppressingSyntaxErrorsInline() { // syntaxErrors should be suppressible (#5917)
const char code[] = "double result(0.0);\n"
"_asm\n"
"{\n"
" // cppcheck-suppress syntaxError\n"
" push EAX ; save EAX for callers\n"
" mov EAX,Real10 ; get the address pointed to by Real10\n"
" fld TBYTE PTR [EAX] ; load an extended real (10 bytes)\n"
" fstp QWORD PTR result ; store a double (8 bytes)\n"
" pop EAX ; restore EAX\n"
"}";
ASSERT_EQUALS(0, checkSuppression(code, ""));
ASSERT_EQUALS("", errout.str());
}
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void suppressingSyntaxErrorsWhileFileRead() { // syntaxError while file read should be suppressible (PR #1333)
const char code[] = "CONST (genType, KS_CONST) genService[KS_CFG_NR_OF_NVM_BLOCKS] =\n"
"{\n"
"[!VAR \"BC\" = \"$BC + 1\"!][!//\n"
"[!IF \"(as:modconf('Ks')[1]/KsGeneral/KsType = 'KS_CFG_TYPE_KS_MASTER') and\n"
" (as:modconf('Ks')[1]/KsGeneral/KsUseShe = 'true')\"!][!//\n"
" {\n"
" &varNB_GetErrorStatus,\n"
" &varNB_WriteBlock,\n"
" &varNB_ReadBlock\n"
" },\n"
"[!VAR \"BC\" = \"$BC + 1\"!][!//\n"
"[!ENDIF!][!//\n"
"};";
ASSERT_EQUALS(0, checkSuppression(code, "syntaxError:test.cpp:4"));
ASSERT_EQUALS("", errout.str());
}
void symbol() const {
Suppressions::Suppression s;
s.errorId = "foo";
s.symbolName = "array*";
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Suppressions::ErrorMessage errorMsg;
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errorMsg.errorId = "foo";
errorMsg.setFileName("test.cpp");
errorMsg.lineNumber = 123;
errorMsg.symbolNames = "";
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ASSERT_EQUALS(false, s.isSuppressed(errorMsg));
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errorMsg.symbolNames = "x\n";
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ASSERT_EQUALS(false, s.isSuppressed(errorMsg));
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errorMsg.symbolNames = "array1\n";
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ASSERT_EQUALS(true, s.isSuppressed(errorMsg));
errorMsg.symbolNames = "x\n"
"array2\n";
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ASSERT_EQUALS(true, s.isSuppressed(errorMsg));
errorMsg.symbolNames = "array3\n"
"x\n";
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ASSERT_EQUALS(true, s.isSuppressed(errorMsg));
}
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void unusedFunction() {
ASSERT_EQUALS(0, checkSuppression("void f() {}", "unusedFunction"));
}
void suppressingSyntaxErrorAndExitCode() {
const char code[] = "fi if;";
ASSERT_EQUALS(0, checkSuppression(code, "*:test.cpp"));
ASSERT_EQUALS("", errout.str());
// multi files, but only suppression one
std::map<std::string, std::string> mfiles;
mfiles["test.cpp"] = "fi if;";
mfiles["test2.cpp"] = "fi if";
ASSERT_EQUALS(2, checkSuppression(mfiles, "*:test.cpp"));
ASSERT_EQUALS("[test2.cpp:1]: (error) syntax error\n", errout.str());
// multi error in file, but only suppression one error
const char code2[] = "fi fi\n"
"if if;";
ASSERT_EQUALS(2, checkSuppression(code2, "*:test.cpp:1")); // suppress all error at line 1 of test.cpp
ASSERT_EQUALS("[test.cpp:2]: (error) syntax error\n", errout.str());
// multi error in file, but only suppression one error (2)
const char code3[] = "void f(int x, int y){\n"
" int a = x/0;\n"
" int b = y/0;\n"
"}\n"
"f(0, 1);\n";
ASSERT_EQUALS(2, checkSuppression(code3, "zerodiv:test.cpp:3")); // suppress 'errordiv' at line 3 of test.cpp
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}
void suppressLocal() const {
Suppressions suppressions;
std::istringstream s("errorid:test.cpp\n"
"errorid2");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "test.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "test.cpp", 1), false));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "test2.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "test2.cpp", 1), false));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid2", "test.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid2", "test.cpp", 1), false));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid2", "test2.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid2", "test2.cpp", 1), false));
}
void suppressUnmatchedSuppressions() {
std::list<Suppressions::Suppression> suppressions;
// No unmatched suppression
errout.str("");
suppressions.clear();
Suppressions::reportUnmatchedSuppressions(suppressions, *this);
ASSERT_EQUALS("", errout.str());
// suppress all unmatchedSuppression
errout.str("");
suppressions.clear();
suppressions.emplace_back("abc", "a.c", 10U);
suppressions.emplace_back("unmatchedSuppression", "*", Suppressions::Suppression::NO_LINE);
Suppressions::reportUnmatchedSuppressions(suppressions, *this);
ASSERT_EQUALS("", errout.str());
// suppress all unmatchedSuppression (corresponds to "--suppress=unmatchedSuppression")
errout.str("");
suppressions.clear();
suppressions.emplace_back("abc", "a.c", 10U);
suppressions.emplace_back("unmatchedSuppression", "", Suppressions::Suppression::NO_LINE);
Suppressions::reportUnmatchedSuppressions(suppressions, *this);
ASSERT_EQUALS("", errout.str());
// suppress all unmatchedSuppression in a.c
errout.str("");
suppressions.clear();
suppressions.emplace_back("abc", "a.c", 10U);
suppressions.emplace_back("unmatchedSuppression", "a.c", Suppressions::Suppression::NO_LINE);
Suppressions::reportUnmatchedSuppressions(suppressions, *this);
ASSERT_EQUALS("", errout.str());
// suppress unmatchedSuppression in a.c at line 10
errout.str("");
suppressions.clear();
suppressions.emplace_back("abc", "a.c", 10U);
suppressions.emplace_back("unmatchedSuppression", "a.c", 10U);
Suppressions::reportUnmatchedSuppressions(suppressions, *this);
ASSERT_EQUALS("", errout.str());
// don't suppress unmatchedSuppression when file is mismatching
errout.str("");
suppressions.clear();
suppressions.emplace_back("abc", "a.c", 10U);
suppressions.emplace_back("unmatchedSuppression", "b.c", Suppressions::Suppression::NO_LINE);
Suppressions::reportUnmatchedSuppressions(suppressions, *this);
ASSERT_EQUALS("[a.c:10]: (information) Unmatched suppression: abc\n", errout.str());
// don't suppress unmatchedSuppression when line is mismatching
errout.str("");
suppressions.clear();
suppressions.emplace_back("abc", "a.c", 10U);
suppressions.emplace_back("unmatchedSuppression", "a.c", 1U);
Suppressions::reportUnmatchedSuppressions(suppressions, *this);
ASSERT_EQUALS("[a.c:10]: (information) Unmatched suppression: abc\n", errout.str());
}
};
REGISTER_TEST(TestSuppressions)