Viadeo Twitter Google Bookmarks ! Facebook Digg del.icio.us MySpace Yahoo MyWeb Blinklist Netvouz Reddit Simpy StumbleUpon Bookmarks Windows Live Favorites 
Logo Documentation Qt ·  Page d'accueil  ·  Toutes les classes  ·  Toutes les fonctions  ·  Vues d'ensemble  · 

Chapter 3: Simulating GUI Events

Files:

QTestLib features some mechanisms to test graphical user interfaces. Instead of simulating native window system events, QTestLib sends internal Qt events. That means there are no side-effects on the machine the tests are running on.

In this chapter we will se how to write a simple GUI test.

Writing a GUI test

This time, let's assume you want to test the behavior of our QLineEdit class. As before, you will need a class that contains your test function:

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

 class TestGui: public QObject
 {
     Q_OBJECT

 private slots:
     void testGui();

 };

The only difference is that you need to include the QtGui class definitions in addition to the QTest namespace.

 void TestGui::testGui()
 {
     QLineEdit lineEdit;

     QTest::keyClicks(&lineEdit, "hello world");

     QCOMPARE(lineEdit.text(), QString("hello world"));
 }

In the implementation of the test function we first create a QLineEdit. Then we simulate writing "hello world" in the line edit using the QTest::keyClicks() function.

Note: The widget must also be shown in order to correctly test keyboard shortcuts.

QTest::keyClicks() simulates clicking a sequence of keys on a widget. Optionally, a keyboard modifier can be specified as well as a delay (in milliseconds) of the test after each key click. In a similar way, you can use the QTest::keyClick(), QTest::keyPress(), QTest::keyRelease(), QTest::mouseClick(), QTest::mouseDClick(), QTest::mouseMove(), QTest::mousePress() and QTest::mouseRelease() functions to simulate the associated GUI events.

Finally, we use the QCOMPARE() macro to check if the line edit's text is as expected.

As before, to make our test case a stand-alone executable, the following two lines are needed:

 QTEST_MAIN(TestGui)
 #include "testgui.moc"

The QTEST_MAIN() macro expands to a simple main() method that runs all the test functions, and since both the declaration and the implementation of our test class are in a .cpp file, we also need to include the generated moc file to make Qt's introspection work.

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. Qt 4.8
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !
 
 
 
 
Partenaires

Hébergement Web