130 lines
4.6 KiB
C++
130 lines
4.6 KiB
C++
/*
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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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*
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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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#define UNIT_TESTING
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#include "../src/tokenize.h"
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#include "../src/checkclass.h"
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#include "testsuite.h"
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#include <sstream>
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extern std::ostringstream errout;
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class TestClass : public TestFixture
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{
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public:
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TestClass() : TestFixture("TestClass")
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{ }
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private:
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void run()
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{
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TEST_CASE(virtualDestructor1); // Base class not found => no error
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TEST_CASE(virtualDestructor2); // Base class doesn't have a destructor
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TEST_CASE(virtualDestructor3); // Base class has a destructor, but it's not virtual
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TEST_CASE(virtualDestructor4); // Derived class doesn't have a destructor => no error
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TEST_CASE(virtualDestructor5); // Derived class has empty destructor => no error
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}
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// Check that base classes have virtual destructors
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void checkVirtualDestructor(const char code[])
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{
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// Tokenize..
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Tokenizer tokenizer;
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std::istringstream istr(code);
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tokenizer.tokenize(istr, "test.cpp");
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tokenizer.simplifyTokenList();
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// Clear the error log
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errout.str("");
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// Check..
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Settings settings;
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CheckClass checkClass(&tokenizer, settings, this);
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checkClass.virtualDestructor();
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}
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void virtualDestructor1()
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{
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// Base class not found
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checkVirtualDestructor("class Derived : public Base { };");
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ASSERT_EQUALS(std::string(""), errout.str());
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checkVirtualDestructor("class Derived : Base { };");
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ASSERT_EQUALS(std::string(""), errout.str());
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}
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void virtualDestructor2()
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{
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// Base class doesn't have a destructor
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checkVirtualDestructor("class Base { };\n"
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"class Derived : public Base { public: ~Derived() { (void)11; } };");
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ASSERT_EQUALS(std::string("[test.cpp:1]: Class Base which is inherited by class Derived does not have a virtual destructor\n"), errout.str());
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checkVirtualDestructor("class Base { };\n"
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"class Derived : Base { public: ~Derived() { (void)11; } };");
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ASSERT_EQUALS(std::string(""), errout.str());
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}
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void virtualDestructor3()
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{
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// Base class has a destructor, but it's not virtual
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checkVirtualDestructor("class Base { public: ~Base(); };\n"
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"class Derived : public Base { public: ~Derived() { (void)11; } };");
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ASSERT_EQUALS(std::string("[test.cpp:1]: Class Base which is inherited by class Derived does not have a virtual destructor\n"), errout.str());
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checkVirtualDestructor("class Base { public: ~Base(); };\n"
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"class Derived : private Fred, public Base { public: ~Derived() { (void)11; } };");
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ASSERT_EQUALS(std::string("[test.cpp:1]: Class Base which is inherited by class Derived does not have a virtual destructor\n"), errout.str());
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}
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void virtualDestructor4()
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{
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// Derived class doesn't have a destructor => no error
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checkVirtualDestructor("class Base { public: ~Base(); };\n"
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"class Derived : public Base { };");
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ASSERT_EQUALS(std::string(""), errout.str());
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checkVirtualDestructor("class Base { public: ~Base(); };\n"
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"class Derived : private Fred, public Base { };");
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ASSERT_EQUALS(std::string(""), errout.str());
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}
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void virtualDestructor5()
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{
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// Derived class has empty destructor => no error
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checkVirtualDestructor("class Base { public: ~Base(); };\n"
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"class Derived : public Base { public: ~Derived() {} };");
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ASSERT_EQUALS(std::string(""), errout.str());
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checkVirtualDestructor("class Base { public: ~Base(); };\n"
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"class Derived : public Base { public: ~Derived(); }; Derived::~Derived() {}");
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ASSERT_EQUALS(std::string(""), errout.str());
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}
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};
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REGISTER_TEST(TestClass)
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