Make events tests deterministic

events/tests/test_views.py

@@ -140,21 +140,17 @@ class CSVExportContentTest(MessagePatch, CSVResponseMixin, TestCase):
         )
 
         response = self.client.get(self.url)
-        content = self._load_from_csv_response(response, as_dict=True)
-        toto_dict = dict(content[0])
-
-        # This is not super nice, but it makes the test deterministic.
-        toto_dict["def"] = set(x.strip() for x in toto_dict["def"].split("&"))
-
-        self.assertDictEqual(
-            toto_dict,
+        self.assertCSVEqual(
+            response,
+            [
                 {
                     "username": "toto_foo",
                     "prénom": "toto",
                     "nom de famille": "foo",
                     "email": "toto@a.b",
                     "abc": "a",
-                "def": {"d", "f"},
+                    "def": "d & f",
                     "remarks": "hello",
-            },
+                }
+            ],
         )

events/views.py

@@ -38,7 +38,7 @@ def participants_csv(request, event_id):
         # Options
         all_choices = registration.options_choices.values_list("choice", flat=True)
         options_choices = [
-            " & ".join(all_choices.filter(option__id=id))
+            " & ".join(all_choices.filter(option__id=id).order_by("id"))
             for id in event.options.values_list("id", flat=True).order_by("id")
         ]
         row += options_choices