Many new tests

tests/test_activity.py

@@ -1,12 +1,64 @@
 from django.test import TestCase
+from django_kepi import NeedToFetchException
 from django_kepi.models import Activity
+from things_for_testing.models import ThingArticle, ThingUser
 
 class TestActivity(TestCase):
 
     def test_parameters(self):
 
         with self.assertRaisesMessage(ValueError, "is not an Activity type"):
-                Activity.deserialize({
-                    "id": "https://example.com/id/1",
-                    "type": "Wombat",
-                    })
+            Activity.deserialize({
+                "id": "https://example.com/id/1",
+                "type": "Wombat",
+                })
+
+        with self.assertRaisesMessage(ValueError, "Remote activities must have an id"):
+            Activity.deserialize({
+                "type": "Create",
+                })
+
+        with self.assertRaisesMessage(ValueError, "Wrong parameters for type"):
+            Activity.deserialize({
+                "id": "https://example.com/id/1",
+                "type": "Create",
+                })
+
+        with self.assertRaisesMessage(ValueError, "Explicit objects must have an id"):
+            Activity.deserialize({
+                "id": "https://example.com/id/1",
+                "type": "Create",
+                "actor": "https://example.com/user/fred",
+                "object": {
+                    "type": "Article",
+                    }
+                })
+
+    def test_fetching(self):
+
+        test_activity = {
+                "id": "https://example.com/id/1",
+                "type": "Create",
+                "actor": "https://example.com/user/fred",
+                "object": {
+                    "id": "https://articles.example.com/bananas",
+                    "type": "Article",
+                    }
+                }
+
+        with self.assertRaises(NeedToFetchException):
+            Activity.deserialize(test_activity)
+
+        fred = ThingUser(name="fred")
+        fred.save()
+
+        with self.assertRaisesMessage(NeedToFetchException, "https://articles.example.com/bananas"):
+            Activity.deserialize(test_activity)
+
+        article = ThingArticle(title="bananas")
+        article.save()
+
+        self.assertIsNotNone(
+            Activity.deserialize(test_activity),
+            )
+