[18.0][FIX] resource_booking: fix test cases and deprecation warnings

resource_booking/controllers/portal.py

@@ -2,7 +2,7 @@
 # Copyright 2022 Tecnativa - Pedro M. Baeza
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
-from datetime import datetime
+from datetime import datetime, timezone
 
 from dateutil.parser import isoparse
 
@@ -128,7 +128,9 @@ def portal_booking_confirm(self, booking_id, access_token, when, **kwargs):
         """Confirm a booking in a given datetime."""
         booking_sudo = self._get_booking_sudo(booking_id, access_token)
         when_tz_aware = isoparse(when)
-        when_naive = datetime.utcfromtimestamp(when_tz_aware.timestamp())
+        when_naive = datetime.fromtimestamp(
+            when_tz_aware.timestamp(), timezone.utc
+        ).replace(tzinfo=None)
         try:
             booking_sudo.start = when_naive
         except ValidationError as error:

resource_booking/tests/test_backend.py

@@ -787,8 +787,11 @@ def test_suggested_and_subscribed_recipients(self):
         # Requester and combination must be suggested
         recipients_info = rb._message_get_suggested_recipients()
         self.assertEqual(len(recipients_info), 1)
+        recipient_info = recipients_info[0]
+        if "display_name" in recipient_info:
+            recipient_info["name"] = recipient_info.pop("display_name")
         self.assertEqual(
-            recipients_info[0],
+            recipient_info,
             {
                 "lang": None,
                 "partner_id": rb.partner_ids.id,