diff --git a/tests/test_result_gui_viewer.py b/tests/test_result_gui_viewer.py
index e041738..ad375ec 100644
--- a/tests/test_result_gui_viewer.py
+++ b/tests/test_result_gui_viewer.py
@@ -1,16 +1,10 @@
 """
 This script tests ResultGUIViewer.
+This is for local test only. I don't know how to test it in Github Actions properly.
 """
 
 import pytest
 
-def test_OSMImporter():
-    import uxsim as UX
-    from uxsim.OSMImporter import OSMImporter
-    print(OSMImporter.import_osm_data)
-    print(OSMImporter.osm_network_postprocessing)
-
-
 def test_result_gui_viewer():
     import uxsim as UX
     from uxsim.ResultGUIViewer import ResultGUIViewer
@@ -42,4 +36,14 @@ def test_result_gui_viewer():
     # Print summary of simulation result
     W.analyzer.print_simple_stats()
 
-    ResultGUIViewer.launch_World_viewer(W, return_app_window=False)
+    app, window = ResultGUIViewer.launch_World_viewer(W, return_app_window=True)
+
+    # Shut down 5 sec later
+    from PyQt5.QtCore import QTimer
+    import sys
+    timer = QTimer()
+    timer.timeout.connect(window.close)
+    timer.start(1000*5)
+    assert True
+    with pytest.raises(SystemExit):
+        sys.exit(app.exec_())
\ No newline at end of file