Running Qt Unit Tests

Question

Looking at the Qt site and at https://stackoverflow.com/a/3/2/2886/ because I don’t want to create a separate project for each class I want to test, I came up with the following code:

testqstring.h

#ifndef TESTQSTRING_H #define TESTQSTRING_H #include <QtTest/QTest> class TestQString : public QObject { Q_OBJECT private slots: void toUpper(); }; #endif // TESTQSTRING_H 

testqstring.cpp

 #include "testqstring.h" #include <QString> void TestQString::toUpper() { QString str = "Hello"; QCOMPARE(str.toUpper(), QString("HELLO")); } 

main.cpp

 #include "testqstring.h" int main(int argc, char *argv[]) { TestQString testqstring; QTest::qExec(&testqstring, argc, argv); return 0; } 

However, I get the following linker errors:

 ... g++ -headerpad_max_install_names -arch i386 -o tester main.o testqstring.o moc_testqstring.o -F/Library/Frameworks -L/Library/Frameworks -framework QtCore Undefined symbols: "QTest::qExec(QObject*, int, char**)", referenced from: _main in main.o "QTest::compare_helper(bool, char const*, char*, char*, char const*, char const*, char const*, int)", referenced from: bool QTest::qCompare<QString>(QString const&, QString const&, char const*, char const*, char const*, int)in testqstring.o ... and more like that ... 

What am I doing wrong here?

Answer 1

Add

 CONFIG += qtestlib 

to the .pro file to get qmake for communication in the qtest library.