Adjust test to internal type change

src/pretix/api/serializers/event.py

@@ -31,10 +31,10 @@ class PluginsField(Field):
     def to_representation(self, obj):
         from pretix.base.plugins import get_all_plugins
 
-        return [
+        return sorted([
             p.module for p in get_all_plugins()
             if not p.name.startswith('.') and getattr(p, 'visible', True) and p.module in obj.get_plugins()
-        ]
+        ])
 
     def to_internal_value(self, data):
         return {

src/tests/api/test_events.py

@@ -89,10 +89,10 @@ TEST_EVENT_RES = {
     "slug": "dummy",
     "has_subevents": False,
     "meta_data": {"type": "Conference"},
-    'plugins': {
+    'plugins': [
         'pretix.plugins.banktransfer',
         'pretix.plugins.ticketoutputpdf'
-    }
+    ]
 }
 
 
@@ -573,7 +573,7 @@ def test_event_update_plugins(token_client, organizer, event, free_item, free_qu
         format='json'
     )
     assert resp.status_code == 200
-    assert resp.data.get('plugins') == {
+    assert set(resp.data.get('plugins')) == {
         "pretix.plugins.ticketoutputpdf",
         "pretix.plugins.pretixdroid"
     }
@@ -588,9 +588,9 @@ def test_event_update_plugins(token_client, organizer, event, free_item, free_qu
         format='json'
     )
     assert resp.status_code == 200
-    assert resp.data.get('plugins') == {
+    assert resp.data.get('plugins') == [
         "pretix.plugins.banktransfer"
-    }
+    ]
 
     resp = token_client.patch(
         '/api/v1/organizers/{}/events/{}/'.format(organizer.slug, event.slug),