Qt: How to organize Unit Test with more than one class?

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温柔的废话 2020-12-29 03:10

I have a Qt Unit test (sub)project, which generates me one class (with the main generated by QTEST_APPLESS_MAIN).I can start this from within Qt Creator as cons

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星月不相逢 (楼主)

2020-12-29 03:31

Searching for this same answer, I found a very good solution from http://qtcreator.blogspot.de/2009/10/running-multiple-unit-tests.html. He creates a namespace with a container that registers all the tests created (via the DECLARE_TEST macro), and then uses it to run all the tests on the list. I rewrote it to fit my code and I post my version here (My Qt Creator version: 4.1.0):

/* BASED ON
 * http://qtcreator.blogspot.de/2009/10/running-multiple-unit-tests.html
 */    
#ifndef TESTCOLLECTOR_H
#define TESTCOLLECTOR_H

#include 
#include 
#include 
#include 

namespace TestCollector{
typedef std::map > TestList;
inline TestList& GetTestList()
{
   static TestList list;
   return list;
}

inline int RunAllTests(int argc, char **argv) {
    int result = 0;
    for (const auto&i:GetTestList()) {
        result += QTest::qExec(i.second.get(), argc, argv);
    }
    return result;
}

template 
class UnitTestClass {
public:
    UnitTestClass(const std::string& pTestName) {
        auto& testList = TestCollector::GetTestList();
        if (0==testList.count(pTestName)) {
            testList.insert(std::make_pair(pTestName, std::make_shared()));
        }
    }
};
}

#define ADD_TEST(className) static TestCollector::UnitTestClass \
    test(#className);

#endif // TESTCOLLECTOR_H

Then, just add the ADD_TEST(class) line in your test header like this:

#ifndef TESTRANDOMENGINES_H
#define TESTRANDOMENGINES_H

#include 
#include "TestCollector.h"

class TestRandomEngines : public QObject
{
    Q_OBJECT

private Q_SLOTS:
    void test1();
};

ADD_TEST(TestRandomEngines)

#endif // TESTRANDOMENGINES_H

And and to run all the tests, just do:

#include "TestCollector.h"
#include 

int main(int argc, char *argv[]) {
    auto nFailedTests = TestCollector::RunAllTests(argc, argv);
    std::cout << "Total number of failed tests: "
              << nFailedTests << std::endl;
    return nFailedTests;
}

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