make sure event transition is correctly unregistered/re-registered

When the eventType or eventObject is changed while the state is active,
the transition needs to be unregistered _before_ either property is
changed, only _then_ can it be re-registered.

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/auto/qstatemachine/tst_qstatemachine.cpp b/tests/auto/qstatemachine/tst_qstatemachine.cpp
index 8354d03..a5070cb 100644
--- a/tests/auto/qstatemachine/tst_qstatemachine.cpp
+++ b/tests/auto/qstatemachine/tst_qstatemachine.cpp
@@ -1836,6 +1836,19 @@ void tst_QStateMachine::eventTransitions()
         QCoreApplication::processEvents();
         QTest::mouseRelease(&button, Qt::LeftButton);
         QTRY_COMPARE(finishedSpy.count(), 2);
+
+        machine.start();
+        QCoreApplication::processEvents();
+        trans->setEventType(QEvent::MouseButtonPress);
+        QTest::mousePress(&button, Qt::LeftButton);
+        QTRY_COMPARE(finishedSpy.count(), 3);
+
+        QPushButton button2;
+        machine.start();
+        QCoreApplication::processEvents();
+        trans->setEventObject(&button2);
+        QTest::mousePress(&button2, Qt::LeftButton);
+        QTRY_COMPARE(finishedSpy.count(), 4);
     }
     for (int x = 0; x < 3; ++x) {
         QStateMachine machine;