119 lines
3.1 KiB
C++
119 lines
3.1 KiB
C++
/*
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* c++check - c/c++ syntax checking
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* Copyright (C) 2007 Daniel Marjamäki
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/
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*/
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// Check for unused variables..
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#include "testsuite.h"
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#include "tokenize.h"
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#include "CheckOther.h"
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#include <sstream>
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extern std::ostringstream errout;
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class TestUnusedVar : public TestFixture
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{
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public:
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TestUnusedVar() : TestFixture("TestUnusedVar")
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{ }
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private:
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void check( const char code[] )
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{
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// Tokenize..
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Tokenizer tokenizer( this );
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tokenizer.getFiles()->push_back( "test.cpp" );
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std::istringstream istr(code);
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tokenizer.TokenizeCode( istr );
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tokenizer.SimplifyTokenList();
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// Clear the error buffer..
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errout.str("");
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// Check for unused variables..
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CheckOther checkOther( &tokenizer, this );
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checkOther.CheckStructMemberUsage();
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}
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void run()
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{
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TEST_CASE( structmember1 );
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TEST_CASE( structmember2 );
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TEST_CASE( structmember3 );
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}
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void structmember1()
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{
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check( "struct abc\n"
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"{\n"
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" int a;\n"
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" int b;\n"
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" int c;\n"
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"};\n" );
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ASSERT_EQUALS( std::string("[test.cpp:2]: struct member 'abc::a' is never read\n"
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"[test.cpp:3]: struct member 'abc::b' is never read\n"
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"[test.cpp:4]: struct member 'abc::c' is never read\n"), errout.str() );
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}
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void structmember2()
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{
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check( "struct ABC\n"
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"{\n"
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" int a;\n"
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" int b;\n"
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" int c;\n"
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"};\n"
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"\n"
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"void foo()\n"
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"{\n"
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" struct ABC abc;\n"
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" int a = abc.a;\n"
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" int b = abc.b;\n"
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" int c = abc.c;\n"
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"}\n" );
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ASSERT_EQUALS( std::string(""), errout.str() );
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}
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void structmember3()
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{
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check( "struct ABC\n"
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"{\n"
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" int a;\n"
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" int b;\n"
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" int c;\n"
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"};\n"
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"\n"
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"static struct ABC abc[] = { {1, 2, 3} };\n"
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"\n"
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"void foo()\n"
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"{\n"
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" int a = abc[0].a;\n"
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" int b = abc[0].b;\n"
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" int c = abc[0].c;\n"
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"}\n" );
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ASSERT_EQUALS( std::string(""), errout.str() );
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}
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};
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REGISTER_TEST( TestUnusedVar )
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