QtTest: use delay properly in mouseWheel()

As in mouseEvent(), it's not the qWait() that usually matters as much
as the timestamp difference that the delivery code will see.

Task-number: QTBUG-56075
Change-Id: Ifc3b0830b6973997916465f3a9313d607428ede1
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/qmltest/quicktestevent.cpp b/src/qmltest/quicktestevent.cpp
index a1a707d2d6..1ed642fe07 100644
--- a/src/qmltest/quicktestevent.cpp
+++ b/src/qmltest/quicktestevent.cpp
@@ -240,8 +240,10 @@ namespace QtQuickTest
         QTEST_ASSERT(item);
         if (delay == -1 || delay < QTest::defaultMouseDelay())
             delay = QTest::defaultMouseDelay();
-        if (delay > 0)
+        if (delay > 0) {
             QTest::qWait(delay);
+            lastMouseTimestamp += delay;
+        }
 
         QPoint pos;
         QQuickItem *sgitem = qobject_cast<QQuickItem *>(item);
@@ -254,6 +256,7 @@ namespace QtQuickTest
         stateKey &= static_cast<unsigned int>(Qt::KeyboardModifierMask);
         QWheelEvent we(pos, window->mapToGlobal(pos), QPoint(0, 0), QPoint(xDelta, yDelta), buttons,
                        stateKey, Qt::NoScrollPhase, false);
+        we.setTimestamp(++lastMouseTimestamp);
 
         QSpontaneKeyEvent::setSpontaneous(&we); // hmmmm
         if (!qApp->notify(window, &we))