OpenMensa parser for STW Potsdam after canteen website redesign

tests/test_retrieval.py

@@ -0,0 +1,30 @@
+# -*- encoding: utf-8 -*-
+
+import os
+import pytest
+
+from stw_potsdam import feed
+from stw_potsdam.config import read_canteen_config
+from stw_potsdam.canteen_api import download_menu
+from stw_potsdam.canteen_api import MenuParams
+
+ENV_ENABLED = 'ENABLE_API_QUERY'
+
+CANTEENS = read_canteen_config()
+
+
+@pytest.fixture(params=CANTEENS.values(), ids=lambda canteen: canteen.name)
+def canteen(request):
+    return request.param
+
+
+requires_online_api = pytest.mark.skipif(
+    not bool(os.getenv(ENV_ENABLED)),
+    reason='Querying the online API is disabled. Turn on by setting env variable %s.' % ENV_ENABLED
+)
+
+
+@requires_online_api
+def test_retrieval(canteen):
+    menu = download_menu(MenuParams(canteen_id=canteen.id, chash=canteen.chash))
+    feed.render(canteen, menu)