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testgui.cpp Example File
qtestlib/tutorial4/testgui.cpp

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 #include <QtGui>
 #include <QtTest/QtTest>

 class TestGui: public QObject
 {
     Q_OBJECT

 private slots:
     void testGui_data();
     void testGui();
 };

 void TestGui::testGui_data()
 {
     QTest::addColumn<QTestEventList>("events");
     QTest::addColumn<QString>("expected");

     QTestEventList list1;
     list1.addKeyClick('a');
     QTest::newRow("char") << list1 << "a";

     QTestEventList list2;
     list2.addKeyClick('a');
     list2.addKeyClick(Qt::Key_Backspace);
     QTest::newRow("there and back again") << list2 << "";
 }

 void TestGui::testGui()
 {
     QFETCH(QTestEventList, events);
     QFETCH(QString, expected);

     QLineEdit lineEdit;

     events.simulate(&lineEdit);

     QCOMPARE(lineEdit.text(), expected);
 }

 QTEST_MAIN(TestGui)
 #include "testgui.moc"