Adding a bunch of Unit Tests

src/tixlplugins/testdummy/__init__.py

@@ -0,0 +1,17 @@
+from django.apps import AppConfig
+from tixlbase.plugins import PluginType
+
+
+class TestDummyApp(AppConfig):
+    name = 'tixlplugins.testdummy'
+    verbose_name = '.testdummy'
+
+    class TixlPluginMeta:
+        type = PluginType.RESTRICTION
+        name = '.testdummy'
+        version = '1.0.0'
+
+    def ready(self):
+        from . import signals  # NOQA
+
+default_app_config = 'tixlplugins.testdummy.TestDummyApp'

src/tixlplugins/testdummy/signals.py

@@ -0,0 +1,9 @@
+from django.dispatch import receiver
+
+from tixlbase.signals import determine_availability
+
+
+@receiver(determine_availability)
+def availability_handler(sender, **kwargs):
+    kwargs['sender'] = sender
+    return kwargs

src/tixlplugins/timerestriction/tests.py

@@ -57,6 +57,33 @@ class TimeRestrictionTest(TestCase):
         self.assertTrue(result[0]['available'])
         self.assertEqual(result[0]['price'], 12)
 
+    def test_cached_result(self):
+        r = TimeRestriction.objects.create(
+            timeframe_from=now() - timedelta(days=3),
+            timeframe_to=now() + timedelta(days=3),
+            event=self.event,
+            price=12
+        )
+        r.items.add(self.item)
+        result = signals.availability_handler(
+            self.event, item=self.item,
+            variations=self.item.get_all_variations(),
+            context=None, cache=self.event.get_cache()
+        )
+        self.assertEqual(len(result), 1)
+        self.assertIn('available', result[0])
+        self.assertTrue(result[0]['available'])
+        self.assertEqual(result[0]['price'], 12)
+        result = signals.availability_handler(
+            self.event, item=self.item,
+            variations=self.item.get_all_variations(),
+            context=None, cache=self.event.get_cache()
+        )
+        self.assertEqual(len(result), 1)
+        self.assertIn('available', result[0])
+        self.assertTrue(result[0]['available'])
+        self.assertEqual(result[0]['price'], 12)
+
     def test_simple_case_unavailable(self):
         r = TimeRestriction.objects.create(
             timeframe_from=now() - timedelta(days=5),