test app: Improve status and error handling a bit

- Reset "running" check box if an error occurs
- Add check box to manually reset position source's error code, as error
  is not emitted with NoError
- There is no need to handle the "OK" case in errorChanged, as the
  corresponding signal will not be emitted for NoError

Change-Id: I53d637c8efd807d6c3e8abff98963585fe74f220
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>

1 files changed, 1 insertions, 0 deletions

diff --git a/tests/applications/positioning_backend/widget.h b/tests/applications/positioning_backend/widget.h
index b67e53b8..e0dc68fc 100644
--- a/tests/applications/positioning_backend/widget.h
+++ b/tests/applications/positioning_backend/widget.h
@@ -59,6 +59,7 @@ private slots:
     void on_radioButton_4_clicked();
 
     void on_buttonUpdateSupported_clicked();
+    void on_buttonResetError_clicked();
 
 private:
     LogWidget *log = nullptr;