cppcheck/testsimplifytokens.cpp

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/*
* cppcheck - c/c++ syntax checking
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* Copyright (C) 2007-2009 Daniel Marjamäki, Reijo Tomperi, Nicolas Le Cam
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*
* 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 "testsuite.h"
#include "tokenize.h"
#include <sstream>
extern std::ostringstream errout;
class TestSimplifyTokens : public TestFixture
{
public:
TestSimplifyTokens() : TestFixture("TestSimplifyTokens")
{ }
private:
void run()
{
TEST_CASE( cast0 );
TEST_CASE( sizeof1 );
TEST_CASE( iftruefalse );
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}
std::string tok(const char code[])
{
std::istringstream istr(code);
Tokenizer tokenizer;
tokenizer.tokenize( istr, "test.cpp" );
tokenizer.setVarId();
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tokenizer.simplifyTokenList();
std::string ret;
for ( const Token *tok = tokenizer.tokens(); tok; tok = tok->next() )
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{
ret += tok->str() + " ";
}
return ret;
}
void cast0()
{
const char code1[] = " if ( p == (char *)0 ) ";
const char code2[] = " if ( p == 0 ) ";
ASSERT_EQUALS( tok(code1), tok(code2) );
}
void sizeof1()
{
const char code1[] = " struct ABC *abc = malloc(sizeof(*abc)); ";
const char code2[] = " struct ABC *abc = malloc(100); ";
ASSERT_EQUALS( tok(code1), tok(code2) );
}
void iftruefalse()
{
{
const char code1[] = " void f() { int a; bool use = false; if( use ) { a=0; } else {a=1;} } ";
const char code2[] = " void f() { int a; bool use = false; {a=1;} } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) { a=0; } else {a=1;} } ";
const char code2[] = " void f() { int a; bool use = true; { a=0; } } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; int use = 5; if( use ) { a=0; } else {a=1;} } ";
const char code2[] = " void f() { int a; int use = 5; { a=0; } } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; int use = 0; if( use ) { a=0; } else {a=1;} } ";
const char code2[] = " void f() { int a; int use = 0; {a=1;} } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; bool use = false; if( use ) a=0; else a=1; int c=1; } ";
const char code2[] = " void f() { int a; bool use = false; { a=1; } int c=1; } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) a=0; else a=1; int c=1; } ";
const char code2[] = " void f() { int a; bool use = true; { a=0; } int c=1; } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; bool use = false; if( use ) a=0; else if( bb ) a=1; int c=1; } ";
const char code2[] = " void f() { int a; bool use = false; if( bb ) a=1; int c=1; } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) a=0; else if( bb ) a=1; int c=1; } ";
const char code2[] = " void f() { int a; bool use = true; { a=0;} int c=1; } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { int a; bool use = true; if( use ) a=0; else if( bb ) a=1; else if( cc ) a=33; else { gg = 0; } int c=1; } ";
const char code2[] = " void f() { int a; bool use = true; { a=0; }int c=1; } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { if( aa ) { a=0; } else if( true ) a=1; else { a=2; } } ";
const char code2[] = " void f() { if( aa ) { a=0; } else { a=1; } } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
{
const char code1[] = " void f() { if( aa ) { a=0; } else if( false ) a=1; else { a=2; } } ";
const char code2[] = " void f() { if( aa ) { a=0; } else { a=2; } } ";
ASSERT_EQUALS( tok(code2), tok(code1) );
}
}
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};
REGISTER_TEST( TestSimplifyTokens )