Hi, You can follow a similar pattern to this https://github.com/apache/beam/blob/c6f8e0be1a51a32730754934c3f40eaae39d0f98/sdks/python/apache_beam/metrics/metric_test.py#L130 .
``` with self.assertRaises(ValueError): <your-code> ``` On Tue, Apr 4, 2023 at 7:24 PM Grace Young via dev <dev@beam.apache.org> wrote: > How can I confirm in a test that a ValueError is raised by certain cases? > > -- > [image: X] *Dr. Grace Young* > Research Engineer | Tidal <https://x.company/projects/tidal/> > gcyo...@google.com | x.company >