Hi,
On 04/11/2010, at 10:26 PM, ext René Hansen wrote:
> I'd like to be able to find child objects in a QML structure and to do
> that, I've exposed a new QML Object with qmlRegisterType, which provides
> me with:
>
> QObject *QmlUnitTestHelper::getChildById(QObject *parent, QString name) {
> return parent->findChild<QObject *>(name);
> }
>
> And in Qml I have something like this:
>
> Rectangle {
>
> QmlUnitTestHelper {
> id: quth
> }
>
> Rectangle {
> id:outerRect
> Rectangle {
> id:innerRect
> Text {
> id:label
> text: "Hello World"
> }
> }
> }
> }
>
> Which should enable me to test in something like this manner:
>
> quth.getChildById(outerRect, "innerRect").label.text == "Hello World"
>
> However, this doesn't work as expected, so I guess my assuming the QML
> id property being the same as a QObjects objectName is faulty.
That's correct -- id and objectName are separate. You can explicitly give a QML
item an objectName, though, if needed:
Rectangle {
id: myRect
objectName: "theRectangle"
}
(Bea has just added some great documentation on this, which should hopefully be
showing up on the website soon)
> How would I go about doing something like this?
For the above example, you should be able to test the label's text with:
label.text == "Hello World"
(within a component, the id space is "flat", rather than qualified)
If you need to access the item from outside the component, a property alias
(http://doc.qt.nokia.com/4.7/qml-extending-types.html#property-aliases) might
help. You could for example add
property alias testLabel: label
to the top-most Rectangle to make label accessible to the "outside world" via
testLabel.
>From the class name, it looks like you might be looking at writing autotests
>in QML? If so (and If you haven't seen them already), here are a few projects
>that might be of interest:
* qmlunit (https://github.com/fgrehm/qmlunit)
* the Qt3D team's QML unit testing
(http://qt.gitorious.org/qt-labs/qt3d/trees/master/tests/auto/qml3d)
Regards,
Michael
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