507 lines
20 KiB
C++
507 lines
20 KiB
C++
/*
|
|
* Cppcheck - A tool for static C/C++ code analysis
|
|
* Copyright (C) 2007-2018 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 "cppcheck.h"
|
|
#include "settings.h"
|
|
#include "suppressions.h"
|
|
#include "testsuite.h"
|
|
#include "threadexecutor.h"
|
|
|
|
#include <cstddef>
|
|
#include <list>
|
|
#include <map>
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
class TestSuppressions : public TestFixture {
|
|
public:
|
|
TestSuppressions() : TestFixture("TestSuppressions") {
|
|
}
|
|
|
|
private:
|
|
|
|
void run() {
|
|
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(suppressionsMultiFile);
|
|
TEST_CASE(suppressionsPathSeparator);
|
|
|
|
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(symbol);
|
|
|
|
TEST_CASE(unusedFunction);
|
|
|
|
TEST_CASE(matchglob);
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
Suppressions::ErrorMessage errorMessage(const std::string &errorId) const {
|
|
Suppressions::ErrorMessage ret;
|
|
ret.errorId = errorId;
|
|
return ret;
|
|
}
|
|
|
|
Suppressions::ErrorMessage errorMessage(const std::string &errorId, const std::string &file, int line) const {
|
|
Suppressions::ErrorMessage ret;
|
|
ret.errorId = errorId;
|
|
ret.setFileName(file);
|
|
ret.lineNumber = line;
|
|
return ret;
|
|
}
|
|
|
|
void suppressionsDosFormat() const {
|
|
Suppressions suppressions;
|
|
std::istringstream s("abc\r\ndef\r\n");
|
|
ASSERT_EQUALS("", suppressions.parseFile(s));
|
|
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("abc")));
|
|
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("def")));
|
|
}
|
|
|
|
void suppressionsFileNameWithColon() const {
|
|
Suppressions suppressions;
|
|
std::istringstream s("errorid:c:\\foo.cpp\nerrorid: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)));
|
|
}
|
|
|
|
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\nerrorid:y?.cpp\nerrorid: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\nerrorid:xyz.cpp:1\nerrorid:a*.cpp:1\nerrorid: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)));
|
|
}
|
|
}
|
|
|
|
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)));
|
|
}
|
|
|
|
void reportSuppressions(const Settings &settings, const std::map<std::string, std::string> &files) {
|
|
// make it verbose that this check is disabled
|
|
const bool unusedFunctionCheck = false;
|
|
|
|
if (settings.jointSuppressionReport) {
|
|
for (std::map<std::string, std::string>::const_iterator i = files.begin(); i != files.end(); ++i) {
|
|
reportUnmatchedSuppressions(settings.nomsg.getUnmatchedLocalSuppressions(i->first, unusedFunctionCheck));
|
|
}
|
|
}
|
|
|
|
reportUnmatchedSuppressions(settings.nomsg.getUnmatchedGlobalSuppressions(unusedFunctionCheck));
|
|
}
|
|
|
|
// 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> &files, const std::string &suppression = emptyString) {
|
|
// Clear the error log
|
|
errout.str("");
|
|
|
|
CppCheck cppCheck(*this, true);
|
|
Settings& settings = cppCheck.settings();
|
|
settings.exitCode = 1;
|
|
settings.inlineSuppressions = true;
|
|
if (suppression == "unusedFunction")
|
|
settings.addEnabled("unusedFunction");
|
|
settings.addEnabled("information");
|
|
settings.jointSuppressionReport = true;
|
|
if (!suppression.empty()) {
|
|
std::string r = settings.nomsg.addSuppressionLine(suppression);
|
|
ASSERT_EQUALS("", r);
|
|
}
|
|
|
|
unsigned int exitCode = 0;
|
|
for (std::map<std::string, std::string>::const_iterator file = files.begin(); file != files.end(); ++file) {
|
|
exitCode |= cppCheck.check(file->first, file->second);
|
|
}
|
|
if (cppCheck.analyseWholeProgram())
|
|
exitCode |= settings.exitCode;
|
|
|
|
reportSuppressions(settings, files);
|
|
|
|
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"] = 1;
|
|
|
|
Settings settings;
|
|
settings.jobs = 1;
|
|
settings.inlineSuppressions = true;
|
|
settings.addEnabled("information");
|
|
if (!suppression.empty()) {
|
|
ASSERT_EQUALS("", settings.nomsg.addSuppressionLine(suppression));
|
|
}
|
|
ThreadExecutor executor(files, settings, *this);
|
|
for (std::map<std::string, std::size_t>::const_iterator i = files.begin(); i != files.end(); ++i)
|
|
executor.addFileContent(i->first, code);
|
|
|
|
unsigned int exitCode = executor.check();
|
|
|
|
std::map<std::string, std::string> files_for_report;
|
|
for (std::map<std::string, std::size_t>::const_iterator file = files.begin(); file != files.end(); ++file)
|
|
files_for_report[file->first] = "";
|
|
|
|
reportSuppressions(settings, files_for_report);
|
|
|
|
return exitCode;
|
|
}
|
|
|
|
void runChecks(unsigned int (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, with asm before (#6813)
|
|
(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"
|
|
" // 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"));
|
|
}
|
|
|
|
void suppressionsSettings() {
|
|
runChecks(&TestSuppressions::checkSuppression);
|
|
if (ThreadExecutor::isEnabled())
|
|
runChecks(&TestSuppressions::checkSuppressionThreads);
|
|
}
|
|
|
|
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
|
|
checkSuppression(files, "uninitvar:xyz.cpp:3");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
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 inlinesuppress_unusedFunction() const { // #4210, #4946 - wrong report of "unmatchedSuppression" for "unusedFunction"
|
|
Suppressions suppressions;
|
|
suppressions.addSuppression(Suppressions::Suppression("unusedFunction", "test.c", 3));
|
|
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());
|
|
}
|
|
|
|
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());
|
|
}
|
|
|
|
void suppressionWithRelativePaths() {
|
|
// Clear the error log
|
|
errout.str("");
|
|
|
|
CppCheck cppCheck(*this, true);
|
|
Settings& settings = cppCheck.settings();
|
|
settings.addEnabled("style");
|
|
settings.inlineSuppressions = true;
|
|
settings.relativePaths = true;
|
|
settings.basePaths.push_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 suppressable (#7076)
|
|
std::map<std::string, std::string> files;
|
|
files["test.cpp"] = "if if\n";
|
|
|
|
checkSuppression(files, "syntaxError:test.cpp:1");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void suppressingSyntaxErrorsInline() { // syntaxErrors should be suppressable (#5917)
|
|
std::map<std::string, std::string> files;
|
|
files["test.cpp"] = "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"
|
|
"}";
|
|
checkSuppression(files, "");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void symbol() {
|
|
Suppressions::Suppression s;
|
|
s.errorId = "foo";
|
|
s.symbolName = "array*";
|
|
|
|
Suppressions::ErrorMessage errmsg;
|
|
errmsg.errorId = "foo";
|
|
errmsg.setFileName("test.cpp");
|
|
errmsg.lineNumber = 123;
|
|
errmsg.symbolNames = "";
|
|
ASSERT_EQUALS(false, s.isSuppressed(errmsg));
|
|
errmsg.symbolNames = "x\n";
|
|
ASSERT_EQUALS(false, s.isSuppressed(errmsg));
|
|
errmsg.symbolNames = "array1\n";
|
|
ASSERT_EQUALS(true, s.isSuppressed(errmsg));
|
|
errmsg.symbolNames = "x\narray2\n";
|
|
ASSERT_EQUALS(true, s.isSuppressed(errmsg));
|
|
errmsg.symbolNames = "array3\nx\n";
|
|
ASSERT_EQUALS(true, s.isSuppressed(errmsg));
|
|
|
|
}
|
|
|
|
void unusedFunction() {
|
|
ASSERT_EQUALS(0, checkSuppression("void f() {}", "unusedFunction"));
|
|
}
|
|
|
|
void matchglob() {
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("*", "xyz"));
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("x*", "xyz"));
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("*z", "xyz"));
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("*y*", "xyz"));
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("*y*", "yz"));
|
|
ASSERT_EQUALS(false, Suppressions::matchglob("*y*", "abc"));
|
|
ASSERT_EQUALS(false, Suppressions::matchglob("*", "x/y/z"));
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("*/y/z", "x/y/z"));
|
|
|
|
ASSERT_EQUALS(false, Suppressions::matchglob("?", "xyz"));
|
|
ASSERT_EQUALS(false, Suppressions::matchglob("x?", "xyz"));
|
|
ASSERT_EQUALS(false, Suppressions::matchglob("?z", "xyz"));
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("?y?", "xyz"));
|
|
ASSERT_EQUALS(true, Suppressions::matchglob("?/?/?", "x/y/z"));
|
|
}
|
|
};
|
|
|
|
REGISTER_TEST(TestSuppressions)
|