Fixed tests

modoboa/webmail/lib/imaputils.py

@@ -491,11 +491,16 @@ class IMAPconnector:
                     "type": "sent",
                     "label": _("Sent"),
                 },
-                {
-                    "name": constants.MAILBOX_NAME_SCHEDULED,
-                    "type": "scheduled",
-                    "label": _("Scheduled"),
-                },
+            ]
+            if user.scheduledmessage_set.exists():
+                md_mailboxes += [
+                    {
+                        "name": constants.MAILBOX_NAME_SCHEDULED,
+                        "type": "scheduled",
+                        "label": _("Scheduled"),
+                    },
+                ]
+            md_mailboxes += [
                 {
                     "name": user.parameters.get_value("trash_folder"),
                     "type": "trash",

modoboa/webmail/mocks.py

@@ -24,7 +24,7 @@ class IMAP4Mock:
         return "OK", None
 
     def append(self, *args, **kwargs):
-        pass
+        return "OK", [b"[APPENDUID 1234 11] ..."]  # noqa
 
     def create(self, name):
         return "OK", None

modoboa/webmail/viewsets.py

@@ -378,7 +378,7 @@ class ComposeSessionViewSet(viewsets.GenericViewSet):
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         manager = attachments.ComposeSessionManager(request.user.username)
-        if serializer.validated_data["scheduled_datetime"]:
+        if serializer.validated_data.get("scheduled_datetime"):
             schedule_email(
                 request,
                 serializer.validated_data,