fix test server for macos (#369)

Author: andiwand

test/docker/compare_output_server.sh

@@ -9,6 +9,6 @@ DRIVER="firefox"
 
 docker run -ti \
   -v $(pwd):/repo \
-  -p 5000:5000 \
-  ghcr.io/opendocument-app/odr_core_test:sha-34851f1 \
-  python3 /repo/test/scripts/compare_output_server.py /repo/$REF /repo/$OBS --compare --driver $DRIVER
+  -p 8000:8000 \
+  ghcr.io/opendocument-app/odr_core_test \
+  python3 /repo/test/scripts/compare_output_server.py /repo/$REF /repo/$OBS --compare --driver $DRIVER --port 8000

test/scripts/compare_output_server.py

@@ -266,6 +266,7 @@ def main():
                         default='firefox')
     parser.add_argument('--max-workers', type=int, default=1)
     parser.add_argument('--compare', action='store_true')
+    parser.add_argument('--port', type=int, default=5000)
     args = parser.parse_args()
 
     Config.path_a = args.a
@@ -279,7 +280,7 @@ def main():
         Config.observer = Observer()
         Config.observer.start()
 
-    app.run(host='0.0.0.0')
+    app.run(host='0.0.0.0', port=args.port)
 
     if args.compare:
         Config.observer.stop()