116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2020 Cppcheck team.
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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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// This file is for integration tests for trac tickets.
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//
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// The intention is mostly to put tests here for false positives that
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// are fixed by fixing AST/ValueFlow/SymbolDatabase/etc. The check itself
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// worked as it should but there was problem with the input.
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//
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// These tests are typically "black box" tests and don't consider how the
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// checker works internally.
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#include "checkbool.h"
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#include "checknullpointer.h"
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#include "checkother.h"
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#include "testsuite.h"
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#include "settings.h"
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class TestTrac : public TestFixture {
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public:
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TestTrac() : TestFixture("TestTrac") {
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}
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private:
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void run() OVERRIDE {
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TEST_CASE(ticket_7798);
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TEST_CASE(ticket_9573);
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TEST_CASE(ticket_9700);
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}
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template<class C>
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void check(const char code[], const char *filename = "test.cpp") {
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// Clear the error buffer..
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errout.str("");
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Settings settings;
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settings.addEnabled("style");
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settings.addEnabled("warning");
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settings.addEnabled("portability");
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settings.addEnabled("performance");
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settings.standards.c = Standards::CLatest;
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settings.standards.cpp = Standards::CPPLatest;
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settings.inconclusive = true;
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// Tokenize..
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Tokenizer tokenizer(&settings, this);
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std::istringstream istr(code);
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tokenizer.tokenize(istr, filename);
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// Check..
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C c(&tokenizer, &settings, this);
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c.runChecks(&tokenizer, &settings, this);
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}
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void ticket_7798() {
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// checkComparisonOfFuncReturningBool (overloaded functions)
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check<CheckBool>("bool eval(double *) { return false; }\n"
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"double eval(char *) { return 1.0; }\n"
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"int main(int argc, char *argv[])\n"
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"{\n"
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" if ( eval(argv[1]) > eval(argv[2]) )\n"
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" return 1;\n"
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" return 0;\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void ticket_9573() {
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// nullpointer (valueflow)
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check<CheckNullPointer>("int foo (int **array, size_t n_array) {\n"
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" size_t i;\n"
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" for (i = 0; i < n_array; ++i) {\n"
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" if (*array[i] == 1)\n"
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" return 1;\n"
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" }\n"
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" return 0;\n"
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"} \n"
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"int bar() {\n"
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" int **array = NULL; \n"
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" foo (array, 0);\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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}
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void ticket_9700() {
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// FP: duplicateBranch
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check<CheckOther>("void* f(bool b) {\n"
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" if (b) {\n"
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" return new A::Y(true);\n"
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" } else {\n"
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" return new A::Z(true);\n"
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" }\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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}
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};
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REGISTER_TEST(TestTrac)
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