properly reset CheckUnusedFunctions data in tests / made CheckUnusedFunctions::clear() private (cppcheck-opensource#5892)

firewave · web-flow · commit cae6719be11e · 2024-01-18T20:35:17.000+01:00
This was exposed by running
`TestSuppressions::suppressingSyntaxErrorAndExitCodeFiles` and
`TestSuppressions::suppressingSyntaxErrorAndExitCodeMultiFileFiles` on
their own.
diff --git a/Makefile b/Makefile
@@ -650,7 +650,7 @@ $(libcppdir)/vfvalue.o: lib/vfvalue.cpp lib/config.h lib/errortypes.h lib/mathli
 cli/cmdlineparser.o: cli/cmdlineparser.cpp cli/cmdlinelogger.h cli/cmdlineparser.h cli/cppcheckexecutor.h cli/filelister.h externals/tinyxml2/tinyxml2.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/importproject.h lib/library.h lib/mathlib.h lib/path.h lib/pathmatch.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/utils.h lib/xml.h
 	$(CXX) ${INCLUDE_FOR_CLI} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ cli/cmdlineparser.cpp
 
-cli/cppcheckexecutor.o: cli/cppcheckexecutor.cpp cli/cmdlinelogger.h cli/cmdlineparser.h cli/cppcheckexecutor.h cli/cppcheckexecutorseh.h cli/cppcheckexecutorsig.h cli/executor.h cli/processexecutor.h cli/singleexecutor.h cli/threadexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/checkersreport.h lib/checkunusedfunctions.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/utils.h
+cli/cppcheckexecutor.o: cli/cppcheckexecutor.cpp cli/cmdlinelogger.h cli/cmdlineparser.h cli/cppcheckexecutor.h cli/cppcheckexecutorseh.h cli/cppcheckexecutorsig.h cli/executor.h cli/processexecutor.h cli/singleexecutor.h cli/threadexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/checkersreport.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/utils.h
 	$(CXX) ${INCLUDE_FOR_CLI} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ cli/cppcheckexecutor.cpp
 
 cli/cppcheckexecutorseh.o: cli/cppcheckexecutorseh.cpp cli/cppcheckexecutor.h cli/cppcheckexecutorseh.h lib/config.h lib/filesettings.h lib/platform.h lib/standards.h lib/utils.h
@@ -806,7 +806,7 @@ test/testpostfixoperator.o: test/testpostfixoperator.cpp lib/addoninfo.h lib/che
 test/testpreprocessor.o: test/testpreprocessor.cpp externals/simplecpp/simplecpp.h lib/addoninfo.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/library.h lib/mathlib.h lib/path.h lib/platform.h lib/preprocessor.h lib/settings.h lib/standards.h lib/suppressions.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testpreprocessor.cpp
 
-test/testprocessexecutor.o: test/testprocessexecutor.cpp cli/executor.h cli/processexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h test/redirect.h
+test/testprocessexecutor.o: test/testprocessexecutor.cpp cli/executor.h cli/processexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/checkunusedfunctions.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h test/redirect.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testprocessexecutor.cpp
 
 test/testsettings.o: test/testsettings.cpp lib/addoninfo.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h
@@ -824,7 +824,7 @@ test/testsimplifytypedef.o: test/testsimplifytypedef.cpp lib/addoninfo.h lib/che
 test/testsimplifyusing.o: test/testsimplifyusing.cpp lib/addoninfo.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/templatesimplifier.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/vfvalue.h test/fixture.h test/helpers.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testsimplifyusing.cpp
 
-test/testsingleexecutor.o: test/testsingleexecutor.cpp cli/executor.h cli/singleexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h test/redirect.h
+test/testsingleexecutor.o: test/testsingleexecutor.cpp cli/executor.h cli/singleexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/checkunusedfunctions.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h test/redirect.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testsingleexecutor.cpp
 
 test/testsizeof.o: test/testsizeof.cpp lib/addoninfo.h lib/check.h lib/checksizeof.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h
@@ -839,13 +839,13 @@ test/teststring.o: test/teststring.cpp lib/addoninfo.h lib/check.h lib/checkstri
 test/testsummaries.o: test/testsummaries.cpp lib/addoninfo.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/summaries.h lib/suppressions.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testsummaries.cpp
 
-test/testsuppressions.o: test/testsuppressions.cpp cli/cppcheckexecutor.h cli/executor.h cli/processexecutor.h cli/singleexecutor.h cli/threadexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h
+test/testsuppressions.o: test/testsuppressions.cpp cli/cppcheckexecutor.h cli/executor.h cli/processexecutor.h cli/singleexecutor.h cli/threadexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/checkunusedfunctions.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testsuppressions.cpp
 
 test/testsymboldatabase.o: test/testsymboldatabase.cpp lib/addoninfo.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/sourcelocation.h lib/standards.h lib/suppressions.h lib/symboldatabase.h lib/templatesimplifier.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/vfvalue.h test/fixture.h test/helpers.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testsymboldatabase.cpp
 
-test/testthreadexecutor.o: test/testthreadexecutor.cpp cli/executor.h cli/threadexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h test/redirect.h
+test/testthreadexecutor.o: test/testthreadexecutor.cpp cli/executor.h cli/threadexecutor.h lib/addoninfo.h lib/analyzerinfo.h lib/check.h lib/checkunusedfunctions.h lib/color.h lib/config.h lib/cppcheck.h lib/errorlogger.h lib/errortypes.h lib/filesettings.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/tokenize.h lib/tokenlist.h lib/utils.h test/fixture.h test/helpers.h test/redirect.h
 	$(CXX) ${INCLUDE_FOR_TEST} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ test/testthreadexecutor.cpp
 
 test/testtimer.o: test/testtimer.cpp lib/addoninfo.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/timer.h lib/utils.h test/fixture.h
diff --git a/cli/cppcheckexecutor.cpp b/cli/cppcheckexecutor.cpp
@@ -33,8 +33,6 @@
 #include "suppressions.h"
 #include "utils.h"
 
-#include "checkunusedfunctions.h"
-
 #if defined(THREADING_MODEL_THREAD)
 #include "threadexecutor.h"
 #elif defined(THREADING_MODEL_FORK)
@@ -178,8 +176,6 @@ class CppCheckExecutor::StdLogger : public ErrorLogger
 
 int CppCheckExecutor::check(int argc, const char* const argv[])
 {
-    CheckUnusedFunctions::clear();
-
     Settings settings;
     CmdLineLoggerStd logger;
     CmdLineParser parser(logger, settings, settings.nomsg, settings.nofail);
diff --git a/lib/checkunusedfunctions.h b/lib/checkunusedfunctions.h
@@ -44,6 +44,11 @@ namespace CTU {
 /// @{
 
 class CPPCHECKLIB CheckUnusedFunctions : public Check {
+    friend class TestSuppressions;
+    friend class TestSingleExecutorBase;
+    friend class TestProcessExecutorBase;
+    friend class TestThreadExecutorBase;
+
 public:
     /** @brief This constructor is used when registering the CheckUnusedFunctions */
     CheckUnusedFunctions() : Check(myName()) {}
@@ -52,8 +57,6 @@ class CPPCHECKLIB CheckUnusedFunctions : public Check {
     CheckUnusedFunctions(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
         : Check(myName(), tokenizer, settings, errorLogger) {}
 
-    static void clear();
-
     // Parse current tokens and determine..
     // * Check what functions are used
     // * What functions are declared
@@ -74,6 +77,8 @@ class CPPCHECKLIB CheckUnusedFunctions : public Check {
     static void analyseWholeProgram(const Settings &settings, ErrorLogger * const errorLogger, const std::string &buildDir);
 
 private:
+    static void clear();
+
     void getErrorMessages(ErrorLogger *errorLogger, const Settings * /*settings*/) const override {
         CheckUnusedFunctions::unusedFunctionError(errorLogger, emptyString, 0, 0, "funcName");
     }
diff --git a/test/testprocessexecutor.cpp b/test/testprocessexecutor.cpp
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "checkunusedfunctions.h"
 #include "processexecutor.h"
 #include "redirect.h"
 #include "settings.h"
@@ -68,6 +69,8 @@ class TestProcessExecutorBase : public TestFixture {
     void check(unsigned int jobs, int files, int result, const std::string &data, const CheckOptions& opt = make_default_obj{}) {
         errout.str("");
 
+        CheckUnusedFunctions::clear();
+
         std::list<FileSettings> fileSettings;
 
         std::list<std::pair<std::string, std::size_t>> filelist;
diff --git a/test/testsingleexecutor.cpp b/test/testsingleexecutor.cpp
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "checkunusedfunctions.h"
 #include "cppcheck.h"
 #include "filesettings.h"
 #include "fixture.h"
@@ -73,6 +74,8 @@ class TestSingleExecutorBase : public TestFixture {
     void check(int files, int result, const std::string &data, const CheckOptions& opt = make_default_obj{}) {
         errout.str("");
 
+        CheckUnusedFunctions::clear();
+
         std::list<FileSettings> fileSettings;
 
         std::list<std::pair<std::string, std::size_t>> filelist;
diff --git a/test/testsuppressions.cpp b/test/testsuppressions.cpp
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "checkunusedfunctions.h"
 #include "config.h"
 #include "cppcheck.h"
 #include "cppcheckexecutor.h"
@@ -229,6 +230,8 @@ class TestSuppressions : public TestFixture {
         // Clear the error log
         errout.str("");
 
+        CheckUnusedFunctions::clear();
+
         std::list<FileSettings> fileSettings;
 
         std::list<std::pair<std::string, std::size_t>> filelist;
@@ -281,6 +284,8 @@ class TestSuppressions : public TestFixture {
     unsigned int _checkSuppressionThreads(const char code[], bool useFS, const std::string &suppression = emptyString) {
         errout.str("");
 
+        CheckUnusedFunctions::clear();
+
         std::list<FileSettings> fileSettings;
 
         std::list<std::pair<std::string, std::size_t>> filelist;
@@ -329,6 +334,8 @@ class TestSuppressions : public TestFixture {
     unsigned int _checkSuppressionProcesses(const char code[], bool useFS, const std::string &suppression = emptyString) {
         errout.str("");
 
+        CheckUnusedFunctions::clear();
+
         std::list<FileSettings> fileSettings;
 
         std::list<std::pair<std::string, std::size_t>> filelist;
@@ -1352,7 +1359,7 @@ class TestSuppressions : public TestFixture {
         // multi error in file, but only suppression one error
         const char code2[] = "fi fi\n"
                              "if if;";
-        ASSERT_EQUALS(2, (this->*check)(code2, "*:test.cpp:1"));  // suppress all error at line 1 of test.cpp
+        ASSERT_EQUALS(1, (this->*check)(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)
@@ -1361,7 +1368,7 @@ class TestSuppressions : public TestFixture {
                              "    int b = y/0;\n"
                              "}\n"
                              "f(0, 1);\n";
-        ASSERT_EQUALS(2, (this->*check)(code3, "zerodiv:test.cpp:3"));  // suppress 'errordiv' at line 3 of test.cpp
+        ASSERT_EQUALS(1, (this->*check)(code3, "zerodiv:test.cpp:3"));  // suppress 'errordiv' at line 3 of test.cpp
     }
 
     void suppressingSyntaxErrorAndExitCodeFiles() {
@@ -1378,7 +1385,7 @@ class TestSuppressions : public TestFixture {
         std::map<std::string, std::string> mfiles;
         mfiles["test.cpp"] = "fi if;";
         mfiles["test2.cpp"] = "fi if";
-        ASSERT_EQUALS(2, (this->*check)(mfiles, "*:test.cpp"));
+        ASSERT_EQUALS(1, (this->*check)(mfiles, "*:test.cpp"));
         ASSERT_EQUALS("[test2.cpp:1]: (error) syntax error\n", errout.str());
     }
 
diff --git a/test/testthreadexecutor.cpp b/test/testthreadexecutor.cpp
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "checkunusedfunctions.h"
 #include "redirect.h"
 #include "settings.h"
 #include "filesettings.h"
@@ -68,6 +69,8 @@ class TestThreadExecutorBase : public TestFixture {
     void check(unsigned int jobs, int files, int result, const std::string &data, const CheckOptions& opt = make_default_obj{}) {
         errout.str("");
 
+        CheckUnusedFunctions::clear();
+
         std::list<FileSettings> fileSettings;
 
         std::list<std::pair<std::string, std::size_t>> filelist;
