![]() |
Home · Examples |
An overview of Qt's unit testing framework. The QTestLib framework, provided by Nokia, is a tool for unit testing Qt based applications and libraries. QTestLib provides all the functionality commonly found in unit testing frameworks as well as extensions for testing graphical user interfaces.
Table of contents:
Lightweight | QTestLib consists of about 6000 lines of code and 60 exported symbols. |
Self-contained | QTestLib requires only a few symbols from the Qt Core library for non-gui testing. |
Rapid testing | QTestLib needs no special test-runners; no special registration for tests. |
Data-driven testing | A test can be executed multiple times with different test data. |
Basic GUI testing | QTestLib offers functionality for mouse and keyboard simulation. |
IDE friendly | QTestLib outputs messages that can be interpreted by Visual Studio and KDevelop. |
Thread-safety | The error reporting is thread safe and atomic. |
Type-safety | Extensive use of templates prevent errors introduced by implicit type casting. |
Easily extendable | Custom types can easily be added to the test data and test output. |
In addition, there are four private slots that are not treated as testfunctions. They will be executed by the testing framework and can be used to initialize and clean up either the entire test or the current test function.
Example:
class MyFirstTest: public QObject { Q_OBJECT private slots: void initTestCase() { qDebug("called before everything else"); } void myFirstTest() { QVERIFY(1 == 1); } void mySecondTest() { QVERIFY(1 != 2); } void cleanupTestCase() { qDebug("called after myFirstTest and mySecondTest"); } };For more examples, refer to the QTestLib Tutorial.
QT += testlibIf you are using other buildtools, make sure that you add the location of the QTestLib header files to your include path (usually include/QtTest under your Qt installation directory). If you are using a release build of Qt, link your test to the QtTest library. For debug builds, use QtTest_debug.
See Writing a Unit Test for a step by step explanation. For example: It needs to be executed after the unit test has been successfully compiled. Prior to launching, the following files are copied to the device: QTestLib Command Line Arguments
Syntax
The syntax to execute an autotest takes the following simple form:
testname [options] [testfunctions[:testdata]]...
Substitute testname with the name of your executable. testfunctions can contain names of test functions to be executed. If no testfunctions are passed, all tests are run. If you append the name of an entry in testdata, the test function will be run only with that test data.
/myTestDirectory$ testQString toUpper
Runs the test function called toUpper with all available test data.
/myTestDirectory$ testQString toUpper toInt:zero
Runs the toUpper test function with all available test data, and the toInt test function with the testdata called zero (if the specified test data doesn't exist, the associated test will fail).
/myTestDirectory$ testMyWidget -vs -eventdelay 500
Runs the testMyWidget function test, outputs every signal emission and waits 500 milliseconds after each simulated mouse/keyboard event.Options
The following command line arguments are understood:
outputs the possible command line arguments and give some useful help.
outputs all test functions available in the test.
write output to the specified file, rather than to standard output
silent output, only shows warnings, failures and minimal status messages
verbose output; outputs information on entering and exiting test functions.
extended verbose output; also outputs each QCOMPARE() and QVERIFY()
outputs every signal that gets emitted
outputs XML formatted results instead of plain text
outputs results as a stream of XML tags
if no delay is specified for keyboard or mouse simulation (QTest::keyClick(), QTest::mouseClick() etc.), the value from this parameter (in milliseconds) is substituted.
like -eventdelay, but only influences keyboard simulation and not mouse simulation.
like -eventdelay, but only influences mouse simulation and not keyboard simulation.
output more verbose output for keyboard simulationUsing QTestLib remotely on Windows CE
cetest is a convenience application which helps the user to launch an application remotely on a Windows CE device or emulator. Using cetest
cetestSyntax
The syntax to execute an autotest takes the following simple form:
cetest [options] ...
Options
cetest provides the same options as those for unit-testing on non cross-compiled platforms. See Command Line Arguments for more information.
The following commands are also included:
Prior to installation of Qt, you need to set your INCLUDE and LIB environment variables properly.
A default installation of Windows Mobile 5 for Pocket PC can be obtained by:
set INCLUDE=C:\Program Files\Windows CE Tools\wce500\Windows Mobile 5.0 Pocket PC SDK\Activesync\Inc;%INCLUDE% set LIB=C:\Program Files\Windows CE Tools\wce500\Windows Mobile 5.0 Pocket PC SDK\Activesync\Lib;%LIB%Note that Qt will remember the path, so you do not need to set it again after switching the environments for cross-compilation.
Copyright © 2008 Nokia | Trademarks | Qt Jambi 4.4.3_01 |