qt5base-lts/tests/auto/baselineexample/tst_baselineexample.cpp

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#include <qbaselinetest.h>
#include <QPushButton>

class tst_BaselineExample : public QObject
{
    Q_OBJECT

public:
    tst_BaselineExample();

private Q_SLOTS:
    void testBasicUsage();
    void testMultipleImages();
    void testDataDriven_data();
    void testDataDriven();
    void testDataDrivenChecksum_data();
    void testDataDrivenChecksum();
};


tst_BaselineExample::tst_BaselineExample()
{
}


void tst_BaselineExample::testBasicUsage()
{
    // Generate an image:
    QPushButton b("Press me!");
    b.resize(100, 50);
    b.show();
    QTest::qWaitForWindowShown(&b);
    QImage img1 = QPixmap::grabWidget(&b).toImage();
    QVERIFY(!img1.isNull());

    // Compare it to baseline on server:
    QBASELINE_CHECK(img1, "button");
}


void tst_BaselineExample::testMultipleImages()
{
    QPushButton b("Press me!");
    b.resize(100, 50);
    b.show();
    QTest::qWaitForWindowShown(&b);
    QBASELINE_CHECK(QPixmap::grabWidget(&b).toImage(), "text1");

    b.setText("Kick me!");
    QTest::qWait(50);
    QBASELINE_CHECK(QPixmap::grabWidget(&b).toImage(), "text2");
}


void tst_BaselineExample::testDataDriven_data()
{
    QTest::addColumn<QString>("label");
    QBaselineTest::newRow("short") << "Ok!";
    QBaselineTest::newRow("long") << "A really long button text that just does not seem to end";
    QBaselineTest::newRow("empty") << "";
    QBaselineTest::newRow("signs") << "!@#$%^&*()_";
    QBaselineTest::newRow("html") << "<b>BOLD</b>";
}


void tst_BaselineExample::testDataDriven()
{
    QFETCH(QString, label);
    QPushButton b(label);
    b.resize(100, 50);
    b.show();
    QTest::qWaitForWindowShown(&b);
    QBASELINE_TEST(QPixmap::grabWidget(&b).toImage());
}


void tst_BaselineExample::testDataDrivenChecksum_data()
{
    QTest::addColumn<QString>("label");

    const int numItems = 5;
    const char *tags[numItems] = {"short", "long", "empty", "signs", "html"};
    const char *labels[numItems] = {"Ok!", "A really long button text that just does not seem to end", "", "!@#$%^&*()_", "<b>BOLD</b>"};

    for (int i = 0; i<numItems; i++) {
        quint16 checksum = qChecksum(labels[i], qstrlen(labels[i]));
        QBaselineTest::newRow(tags[i], checksum) << labels[i];
    }
}


void tst_BaselineExample::testDataDrivenChecksum()
{
    QFETCH(QString, label);
    QPushButton b(label);
    b.resize(100, 50);
    b.show();
    QTest::qWaitForWindowShown(&b);
    QBASELINE_TEST(QPixmap::grabWidget(&b).toImage());
}


QTEST_MAIN(tst_BaselineExample);

#include "tst_baselineexample.moc"