cppcheck/test/testunusedprivfunc.cpp

120 lines
2.9 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2009 Daniel Marjamäki, Reijo Tomperi, Nicolas Le Cam,
* Leandro Penz, Kimmo Varis
*
* 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/
*/
#define UNIT_TESTING
#include "../src/tokenize.h"
#include "../src/checkclass.h"
#include "testsuite.h"
#include <sstream>
extern std::ostringstream errout;
class TestUnusedPrivateFunction : public TestFixture
{
public:
TestUnusedPrivateFunction() : TestFixture("TestUnusedPrivateFunction")
{ }
private:
void run()
{
TEST_CASE(test1);
// [ 2236547 ] False positive --style unused function, called via pointer
TEST_CASE(func_pointer);
}
void check(const char code[])
{
// Tokenize..
Tokenizer tokenizer;
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
// Clear the error buffer..
errout.str("");
// Check for unused private functions..
Settings settings;
settings._checkCodingStyle = true;
CheckClass checkClass(&tokenizer, settings, this);
checkClass.privateFunctions();
}
void test1()
{
check("class Fred\n"
"{\n"
"private:\n"
" unsigned int f();\n"
"public:\n"
" Fred();\n"
"};\n"
"\n"
"Fred::Fred()\n"
"{ }\n"
"\n"
"unsigned int Fred::f()\n"
"{ }\n");
ASSERT_EQUALS(std::string("[test.cpp:4]: Unused private function 'Fred::f'\n"), errout.str());
}
void func_pointer()
{
check("class Fred\n"
"{\n"
"private:\n"
" typedef void (*testfp)();\n"
"\n"
" testfp get()\n"
" {\n"
" return test;\n"
" }\n"
"\n"
" static void test()\n"
" { }\n"
"\n"
"public:\n"
" Fred();\n"
"};\n"
"\n"
"Fred::Fred()\n"
"{}\n");
ASSERT_EQUALS(std::string("[test.cpp:6]: Unused private function 'Fred::get'\n"), errout.str());
}
};
REGISTER_TEST(TestUnusedPrivateFunction)