cppcheck/test/testinternal.cpp

235 lines
8.2 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2012 Daniel Marjamäki and 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/>.
*/
#ifndef NDEBUG
#include "tokenize.h"
#include "checkinternal.h"
#include "testsuite.h"
#include <sstream>
extern std::ostringstream errout;
class TestInternal : public TestFixture {
public:
TestInternal() : TestFixture("TestInternal")
{ }
private:
void run() {
TEST_CASE(simplePatternInTokenMatch)
TEST_CASE(complexPatternInTokenSimpleMatch)
TEST_CASE(simplePatternSquareBrackets)
TEST_CASE(simplePatternAlternatives)
TEST_CASE(missingPercentCharacter);
}
void check(const std::string &code) {
// Clear the error buffer..
errout.str("");
Settings settings;
settings.addEnabled("internal");
// Tokenize..
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code.c_str());
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyTokenList();
// Check..
CheckInternal checkInternal;
checkInternal.runSimplifiedChecks(&tokenizer, &settings, this);
}
void simplePatternInTokenMatch() {
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \";\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (warning) Found simple pattern inside Token::Match() call: \";\"\n", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"%type%\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::findmatch(tok, \";\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (warning) Found simple pattern inside Token::findmatch() call: \";\"\n", errout.str());
}
void complexPatternInTokenSimpleMatch() {
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"%type%\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Found complex pattern inside Token::simpleMatch() call: \"%type%\"\n", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::findsimplematch(tok, \"%type%\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Found complex pattern inside Token::findsimplematch() call: \"%type%\"\n", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::findsimplematch(tok, \"} !!else\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Found complex pattern inside Token::findsimplematch() call: \"} !!else\"\n", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::findsimplematch(tok, \"foobar\");\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void simplePatternSquareBrackets() {
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"[\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"[ ]\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"[]\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Found complex pattern inside Token::simpleMatch() call: \"[]\"\n", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"] [\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"] [ [abc]\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Found complex pattern inside Token::simpleMatch() call: \"] [ [abc]\"\n", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"[.,;]\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Found complex pattern inside Token::simpleMatch() call: \"[.,;]\"\n", errout.str());
}
void simplePatternAlternatives() {
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"||\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"|\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"a|b\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Found complex pattern inside Token::simpleMatch() call: \"a|b\"\n", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"|= 0\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::simpleMatch(tok, \"| 0 )\");\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void missingPercentCharacter() {
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"%type%\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"foo %type% bar\");\n"
"}");
ASSERT_EQUALS("", errout.str());
// Missing % at the end of string
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"%type\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Missing percent end character in Token::Match() pattern: \"%type\"\n", errout.str());
// Missing % in the middle of a pattern
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"foo %type bar\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Missing percent end character in Token::Match() pattern: \"foo %type bar\"\n", errout.str());
// Bei quiet on single %
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"foo % %type% bar\");\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"foo % %type % bar\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Missing percent end character in Token::Match() pattern: \"foo % %type % bar\"\n", errout.str());
// Find missing % also in 'alternatives' pattern
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"foo|%type|bar\");\n"
"}");
ASSERT_EQUALS("[test.cpp:3]: (error) Missing percent end character in Token::Match() pattern: \"foo|%type|bar\"\n", errout.str());
// Make sure we don't take %or% for a broken %oror%
check("void f() {\n"
" const Token *tok;\n"
" Token::Match(tok, \"foo|%oror%|bar\");\n"
"}");
ASSERT_EQUALS("", errout.str());
}
};
REGISTER_TEST(TestInternal)
#endif // #ifndef NDEBUG