cppcheck/testunusedvar.cpp

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// Check for unused variables..
#include "MiniCppUnit.h"
#include "tokenize.h"
#include "CheckOther.h"
#include <sstream>
extern std::ostringstream errout;
class TestUnusedVar : public TestFixture<TestUnusedVar>
{
private:
void check( const char code[] )
{
// Tokenize..
tokens = tokens_back = NULL;
std::istringstream istr(code);
TokenizeCode( istr );
SimplifyTokenList();
// Clear the error buffer..
errout.str("");
// Check for unused variables..
CheckStructMemberUsage();
}
public:
TEST_FIXTURE( TestUnusedVar )
{
TEST_CASE( structmember1 );
}
void structmember1()
{
check( "struct abc\n"
"{\n"
" int a;\n"
" int b;\n"
" int c;\n"
"};\n" );
ASSERT_EQUALS( std::string("[test.cpp:2]: struct member 'abc::a' is never read\n"
"[test.cpp:3]: struct member 'abc::b' is never read\n"
"[test.cpp:4]: struct member 'abc::c' is never read\n"), errout.str() );
}
};
REGISTER_FIXTURE( TestUnusedVar )