Complete test suite for cart actions

src/pretix/plugins/testdummy/signals.py

@@ -6,4 +6,10 @@ from pretix.base.signals import determine_availability
 @receiver(determine_availability)
 def availability_handler(sender, **kwargs):
     kwargs['sender'] = sender
-    return kwargs
+    variations = kwargs['variations']
+    if sender.settings.testdummy_available is not None:
+        variations = [d.copy() for d in variations]
+        for v in variations:
+            v['available'] = (sender.settings.testdummy_available == 'yes')
+        return variations
+    return []