Add tests for permessions

Author: ahmedxgouda

backend/tests/apps/nest/auth/calendar_events_test.py

@@ -0,0 +1,32 @@
+"""Test cases for Nest Calendar Events permissions."""
+
+from unittest.mock import MagicMock, patch
+
+from apps.nest.auth.calendar_events import has_calendar_events_permission
+from apps.owasp.models.entity_member import EntityMember
+from apps.slack.models.member import Member
+
+
+class TestCalendarEventsPermissions:
+    """Test cases for Nest Calendar Events permissions."""
+
+    @patch("apps.nest.auth.calendar_events.Member.objects.get")
+    @patch("apps.nest.auth.calendar_events.EntityMember.objects.filter")
+    def test_user_with_leader_role(self, mock_filter, mock_get):
+        """Test user with leader role has permission."""
+        mock_member = MagicMock()
+        mock_member.user = MagicMock()
+        mock_get.return_value = mock_member
+        mock_filter.return_value.exists.return_value = True
+
+        assert has_calendar_events_permission("U123456") is True
+        mock_get.assert_called_once_with(slack_user_id="U123456")
+        mock_filter.assert_called_once_with(member=mock_member.user, role=EntityMember.Role.LEADER)
+
+    @patch("apps.nest.auth.calendar_events.Member.objects.get")
+    def test_user_not_found(self, mock_get):
+        """Test user not found has no permission."""
+        mock_get.side_effect = Member.DoesNotExist
+
+        assert has_calendar_events_permission("U123456") is False
+        mock_get.assert_called_once_with(slack_user_id="U123456")