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This matches the behavior seen from Component's createObject()
function.
Change-Id: I83fe73a588d04c5efd30c49059bb19e7584bef48
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>
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Objects created with createTemporaryObject() and
createTemporaryQmlObject() can be destroyed manually before the test
ends. Before this patch, there would be a type error when trying to
check if the object still exists in qtest_destroyTemporaryObjects().
The error seems to stem from the fact that objects that are stored in
an array and later destroy()'d are not nullified, but rather left in
a corrupt state. See the linked bug for more information about this.
We work around this issue by checking for the existence of the
destroy() function on the object before attempting to call it.
Task-number: QTBUG-57749
Change-Id: I0f6ddd47d86af6fb87392c2992f9f6143af6aab8
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>
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A typical pattern with QML tests is to dynamically create
an item and then destroy it at the end of the test function:
TestCase {
id: testCase
name: "MyTest"
when: windowShown
function test_click() {
var item = Qt.createQmlObject("import QtQuick 2.0; Item {}", testCase);
verify(item);
// Test item...
item.destroy();
}
}
The problem with this pattern is that any failures in the test function
will cause the call to item.destroy() to be skipped, leaving the item
hanging around in the scene until the test case has finished. This can
result in interference with future tests; for example, by blocking input
events or producing unrelated debug output that makes it difficult to
follow the code's execution.
By calling e.g. createTemporaryQmlObject() instead, the object is
guaranteed to be destroyed at the end of the test function:
TestCase {
id: testCase
name: "MyTest"
when: windowShown
function test_click() {
var item = createTemporaryObject("import QtQuick 2.0; Item {}", testCase);
verify(item);
// Test item...
// Don't need to worry about destroying "item" here.
}
}
[ChangeLog][TestCase] Added createTemporaryObject() and
createTemporaryQmlObject() functions that can be used to ensure that
dynamically created objects are destroyed at the end of each test
function.
Change-Id: I483342052462aa86464c86bf2082892712dceb58
Task-number: QTBUG-56361
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Michael Brasser <michael.brasser@live.com>
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