cppcheck/test/fixture.h

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2023 Cppcheck team.
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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/>.
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*/
#ifndef fixtureH
#define fixtureH
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#include "check.h"
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#include "color.h"
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#include "config.h"
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#include "errorlogger.h"
#include "library.h"
#include "platform.h"
#include "settings.h"
#include "standards.h"
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#include <cstddef>
#include <list>
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#include <sstream>
#include <stdexcept>
#include <string>
#include <utility>
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class options;
class Tokenizer;
enum class Certainty;
enum class Severity;
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class TestFixture : public ErrorLogger {
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private:
static std::ostringstream errmsg;
static unsigned int countTests;
static std::size_t fails_counter;
static std::size_t todos_counter;
static std::size_t succeeded_todos_counter;
bool mVerbose{};
std::string mTemplateFormat;
std::string mTemplateLocation;
std::string mTestname;
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protected:
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std::string exename;
std::string testToRun;
bool quiet_tests{};
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virtual void run() = 0;
bool prepareTest(const char testname[]);
virtual void prepareTestInternal() {}
void teardownTest();
virtual void teardownTestInternal() {}
std::string getLocationStr(const char * const filename, const unsigned int linenr) const;
bool assert_(const char * const filename, const unsigned int linenr, const bool condition) const;
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template<typename T, typename U>
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bool assertEquals(const char* const filename, const unsigned int linenr, const T& expected, const U& actual, const std::string& msg = emptyString) const {
if (expected != actual) {
std::ostringstream expectedStr;
expectedStr << expected;
std::ostringstream actualStr;
actualStr << actual;
assertEqualsFailed(filename, linenr, expectedStr.str(), actualStr.str(), msg);
}
return expected == actual;
}
//Helper function to be called when an assertEquals assertion fails.
//Writes the appropriate failure message to errmsg and increments fails_counter
void assertEqualsFailed(const char* const filename, const unsigned int linenr, const std::string& expected, const std::string& actual, const std::string& msg) const;
bool assertEquals(const char * const filename, const unsigned int linenr, const std::string &expected, const std::string &actual, const std::string &msg = emptyString) const;
void assertEqualsWithoutLineNumbers(const char * const filename, const unsigned int linenr, const std::string &expected, const std::string &actual, const std::string &msg = emptyString) const;
bool assertEquals(const char * const filename, const unsigned int linenr, const char expected[], const std::string& actual, const std::string &msg = emptyString) const;
bool assertEquals(const char * const filename, const unsigned int linenr, const char expected[], const char actual[], const std::string &msg = emptyString) const;
bool assertEquals(const char * const filename, const unsigned int linenr, const std::string& expected, const char actual[], const std::string &msg = emptyString) const;
bool assertEquals(const char * const filename, const unsigned int linenr, const long long expected, const long long actual, const std::string &msg = emptyString) const;
void assertEqualsDouble(const char * const filename, const unsigned int linenr, const double expected, const double actual, const double tolerance, const std::string &msg = emptyString) const;
void todoAssertEquals(const char * const filename, const unsigned int linenr, const std::string &wanted,
const std::string &current, const std::string &actual) const;
void todoAssertEquals(const char * const filename, const unsigned int linenr, const char wanted[],
const char current[], const std::string &actual) const;
void todoAssertEquals(const char * const filename, const unsigned int linenr, const long long wanted,
const long long current, const long long actual) const;
void assertThrow(const char * const filename, const unsigned int linenr) const;
void assertThrowFail(const char * const filename, const unsigned int linenr) const;
void assertNoThrowFail(const char * const filename, const unsigned int linenr) const;
static std::string deleteLineNumber(const std::string &message);
void setVerbose(bool v) {
mVerbose = v;
}
void setTemplateFormat(const std::string &templateFormat);
void setMultiline() {
setTemplateFormat("multiline");
}
void processOptions(const options& args);
template<typename T>
static T& getCheck()
{
for (Check *check : Check::instances()) {
//cppcheck-suppress useStlAlgorithm
if (T* c = dynamic_cast<T*>(check))
return *c;
}
throw std::runtime_error("instance not found");
}
template<typename T>
static void runChecks(const Tokenizer &tokenizer, ErrorLogger *errorLogger)
{
Check& check = getCheck<T>();
check.runChecks(tokenizer, errorLogger);
}
class SettingsBuilder
{
public:
explicit SettingsBuilder(const TestFixture &fixture) : fixture(fixture) {}
SettingsBuilder(const TestFixture &fixture, Settings settings) : fixture(fixture), settings(std::move(settings)) {}
SettingsBuilder& severity(Severity sev, bool b = true) {
if (REDUNDANT_CHECK && settings.severity.isEnabled(sev) == b)
throw std::runtime_error("redundant setting: severity");
settings.severity.setEnabled(sev, b);
return *this;
}
SettingsBuilder& certainty(Certainty cert, bool b = true) {
if (REDUNDANT_CHECK && settings.certainty.isEnabled(cert) == b)
throw std::runtime_error("redundant setting: certainty");
settings.certainty.setEnabled(cert, b);
return *this;
}
SettingsBuilder& clang() {
if (REDUNDANT_CHECK && settings.clang)
throw std::runtime_error("redundant setting: clang");
settings.clang = true;
return *this;
}
SettingsBuilder& checkLibrary() {
if (REDUNDANT_CHECK && settings.checkLibrary)
throw std::runtime_error("redundant setting: checkLibrary");
settings.checkLibrary = true;
return *this;
}
SettingsBuilder& checkUnusedTemplates(bool b = true) {
if (REDUNDANT_CHECK && settings.checkUnusedTemplates == b)
throw std::runtime_error("redundant setting: checkUnusedTemplates");
settings.checkUnusedTemplates = b;
return *this;
}
SettingsBuilder& debugwarnings(bool b = true) {
if (REDUNDANT_CHECK && settings.debugwarnings == b)
throw std::runtime_error("redundant setting: debugwarnings");
settings.debugwarnings = b;
return *this;
}
SettingsBuilder& c(Standards::cstd_t std) {
// TODO: CLatest and C11 are the same - handle differently
//if (REDUNDANT_CHECK && settings.standards.c == std)
// throw std::runtime_error("redundant setting: standards.c");
settings.standards.c = std;
return *this;
}
SettingsBuilder& cpp(Standards::cppstd_t std) {
// TODO: CPPLatest and CPP20 are the same - handle differently
//if (REDUNDANT_CHECK && settings.standards.cpp == std)
// throw std::runtime_error("redundant setting: standards.cpp");
settings.standards.cpp = std;
return *this;
}
SettingsBuilder& library(const char lib[]);
SettingsBuilder& libraryxml(const char xmldata[], std::size_t len);
SettingsBuilder& platform(Platform::Type type);
SettingsBuilder& checkConfiguration() {
if (REDUNDANT_CHECK && settings.checkConfiguration)
throw std::runtime_error("redundant setting: checkConfiguration");
settings.checkConfiguration = true;
return *this;
}
SettingsBuilder& checkHeaders(bool b = true) {
if (REDUNDANT_CHECK && settings.checkHeaders == b)
throw std::runtime_error("redundant setting: checkHeaders");
settings.checkHeaders = b;
return *this;
}
Settings build() {
return std::move(settings);
}
private:
const TestFixture &fixture;
Settings settings;
const bool REDUNDANT_CHECK = false;
};
SettingsBuilder settingsBuilder() const {
return SettingsBuilder(*this);
}
SettingsBuilder settingsBuilder(Settings settings) const {
return SettingsBuilder(*this, std::move(settings));
}
std::string output_str() {
std::string s = mOutput.str();
mOutput.str("");
return s;
}
std::ostringstream errout;
private:
std::ostringstream mOutput;
void reportOut(const std::string &outmsg, Color c = Color::Reset) override;
void reportErr(const ErrorMessage &msg) override;
void run(const std::string &str);
public:
static void printHelp();
const std::string classname;
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explicit TestFixture(const char * const _name);
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static std::size_t runTests(const options& args);
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};
// TODO: most asserts do not actually assert i.e. do not return
#define TEST_CASE( NAME ) do { if (prepareTest(#NAME)) { setVerbose(false); NAME(); teardownTest(); } } while (false)
#define ASSERT( CONDITION ) if (!assert_(__FILE__, __LINE__, (CONDITION))) return
#define ASSERT_LOC( CONDITION, FILE_, LINE_ ) assert_(FILE_, LINE_, (CONDITION))
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#define CHECK_EQUALS( EXPECTED, ACTUAL ) assertEquals(__FILE__, __LINE__, (EXPECTED), (ACTUAL))
#define ASSERT_EQUALS( EXPECTED, ACTUAL ) if (!assertEquals(__FILE__, __LINE__, (EXPECTED), (ACTUAL))) return
#define ASSERT_EQUALS_WITHOUT_LINENUMBERS( EXPECTED, ACTUAL ) assertEqualsWithoutLineNumbers(__FILE__, __LINE__, EXPECTED, ACTUAL)
#define ASSERT_EQUALS_DOUBLE( EXPECTED, ACTUAL, TOLERANCE ) assertEqualsDouble(__FILE__, __LINE__, EXPECTED, ACTUAL, TOLERANCE)
#define ASSERT_EQUALS_MSG( EXPECTED, ACTUAL, MSG ) assertEquals(__FILE__, __LINE__, EXPECTED, ACTUAL, MSG)
#define ASSERT_THROW( CMD, EXCEPTION ) do { try { CMD; assertThrowFail(__FILE__, __LINE__); } catch (const EXCEPTION&) {} catch (...) { assertThrowFail(__FILE__, __LINE__); } } while (false)
#define ASSERT_THROW_EQUALS( CMD, EXCEPTION, EXPECTED ) do { try { CMD; assertThrowFail(__FILE__, __LINE__); } catch (const EXCEPTION&e) { assertEquals(__FILE__, __LINE__, EXPECTED, e.errorMessage); } catch (...) { assertThrowFail(__FILE__, __LINE__); } } while (false)
#define ASSERT_THROW_EQUALS_2( CMD, EXCEPTION, EXPECTED ) do { try { CMD; assertThrowFail(__FILE__, __LINE__); } catch (const EXCEPTION&e) { assertEquals(__FILE__, __LINE__, EXPECTED, e.what()); } catch (...) { assertThrowFail(__FILE__, __LINE__); } } while (false)
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#define ASSERT_NO_THROW( CMD ) do { try { CMD; } catch (...) { assertNoThrowFail(__FILE__, __LINE__); } } while (false)
#define TODO_ASSERT_THROW( CMD, EXCEPTION ) do { try { CMD; } catch (const EXCEPTION&) {} catch (...) { assertThrow(__FILE__, __LINE__); } } while (false)
#define TODO_ASSERT( CONDITION ) do { const bool condition=(CONDITION); todoAssertEquals(__FILE__, __LINE__, true, false, condition); } while (false)
#define TODO_ASSERT_EQUALS( WANTED, CURRENT, ACTUAL ) todoAssertEquals(__FILE__, __LINE__, WANTED, CURRENT, ACTUAL)
#define EXPECT_EQ( EXPECTED, ACTUAL ) assertEquals(__FILE__, __LINE__, EXPECTED, ACTUAL)
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#define REGISTER_TEST( CLASSNAME ) namespace { CLASSNAME instance_ ## CLASSNAME; }
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#define LOAD_LIB_2_EXE( LIB, NAME, EXE ) do { if (((LIB).load((EXE), NAME).errorcode != Library::ErrorCode::OK)) throw std::runtime_error("library '" + std::string(NAME) + "' not found"); } while (false)
#define LOAD_LIB_2( LIB, NAME ) LOAD_LIB_2_EXE(LIB, NAME, exename.c_str())
#define PLATFORM( P, T ) do { std::string errstr; assertEquals(__FILE__, __LINE__, true, P.set(Platform::toString(T), errstr, {exename}), errstr); } while (false)
#endif // fixtureH