Computer Vision with OpenCV 3 and Qt5

Data-driven testing

Apart from simple comparisons with input data provided inside each test function, QTest also provides the means to perform unit tests with a more organized and structured set of input data to perform data-driven testing, or, in other words, testing functionalities with different sets of input data. This is done using the QFETCH macro along with the QTest::addColumn and QTest::newRow functions. The QFETCH function can be used inside a test function to fetch the required test data. This needs a data function to be created for our test function. A data function is again another private slot with the exact same name as the test function, but with _data appended to its name. So, if we go back to our previous example, to have ...