feature/metafeeds: Support for canteen meta feeds and index feed (#2)

* feature/metafeeds: Restructured API, splitted menu and meta feed

* feature/metafeeds: add field 'key' to Canteen

* feature/metafeeds: added helper function for reverse urls

* feature/metafeeds: added menu feed url to meta feed

* feature/metafeeds: added missing test

(added: testing meta feed rendering in retrievaltest)

* feature/metafeeds: added feed index page

* whitespace fix

* feature/metafeeds: added alias urls

* feature/metafeeds: moved meta feed default url

* feature/metafeeds: moved index generation to views

* feature/metafeeds: inlined builder instance creation

* feature/metafeeds: removed unused 'menu' parameter

* feature/metafeeds: replaced 'reverse' module with Flask's url_for

* feature/metafeeds: removed unused import

* feature/metafeeds: removed unused function parameters

* feature/metafeeds: moved menu feed url generation to views.py

* feature/metafeeds: cleanup debug prints

removing debug prints that should never have been committed.

tests/resources/menu_output.xml

@@ -1,9 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <openmensa version="2.1" xmlns="http://openmensa.org/open-mensa-v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://openmensa.org/open-mensa-v2 http://openmensa.org/open-mensa-v2.xsd">
   <canteen>
-    <name>Mensa Griebnitzsee</name>
-    <address>August-Bebel-Straße 69, Haus 6</address>
-    <city>14482 Potsdam</city>
     <day date="2018-09-19">
       <category name="Angebot 1">
         <meal>

tests/resources/meta_output.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<openmensa version="2.1" xmlns="http://openmensa.org/open-mensa-v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://openmensa.org/open-mensa-v2 http://openmensa.org/open-mensa-v2.xsd">
+  <canteen>
+    <name>Mensa Griebnitzsee</name>
+    <address>August-Bebel-Straße 69, Haus 6</address>
+    <city>14482 Potsdam</city>
+    <feed name="full" priority="0">
+      <schedule dayOfMonth="*" dayOfWeek="*" hour="8-18" minute="0" retry="30 1"/>
+      <url>canteens/griebnitzsee/menu</url>
+    </feed>
+  </canteen>
+</openmensa>

tests/test_consistency.py

@@ -21,16 +21,32 @@ def _menu():
         return json.load(f)
 
 
-def _expected_feed():
-    with io.open(_resource_path('output.xml'), encoding='utf-8') as f:
+def _expected_meta_feed():
+    with io.open(_resource_path('meta_output.xml'), encoding='utf-8') as f:
         return f.read()
 
 
-def test_consistency():
+def _expected_menu_feed():
+    with io.open(_resource_path('menu_output.xml'), encoding='utf-8') as f:
+        return f.read()
+
+
+def test_meta_consistency():
+    canteen = _canteen()
+    menu = _menu()
+    menu_feed_url = "canteens/{}/menu".format(canteen.key)
+
+    actual = feed.render_meta(canteen, menu_feed_url)
+
+    expected = _expected_meta_feed()
+    assert expected == actual
+
+
+def test_menu_consistency():
     canteen = _canteen()
     menu = _menu()
 
-    actual = feed.render(canteen, menu)
+    actual = feed.render_menu(menu)
 
-    expected = _expected_feed()
+    expected = _expected_menu_feed()
     assert expected == actual

tests/test_retrieval.py

@@ -27,4 +27,5 @@ requires_online_api = pytest.mark.skipif(
 @requires_online_api
 def test_retrieval(canteen):
     menu = download_menu(MenuParams(canteen_id=canteen.id, chash=canteen.chash))
-    feed.render(canteen, menu)
+    feed.render_meta(canteen, menu)
+    feed.render_menu(canteen, menu)