positionUpdated() signal of QGeoPositionInfoSource class is not emitted after calling requestUpdate().

1) Get instance of QGeoPositionInfoSource using QGeoPositionInfoSource::createDefaultSource().
2) Connect QSignalSpy to positionUpdated() signal.
3) Call requestUpdate(7000)
4) Sleep for 10 seconds.
5) Check signal spy count

Expected result: signal spy count should be more than 0
Actual result: signal spy count is 0

NOTE: updateTimeout() signal is not emitted too.