Function parent_topics

backend/src/git/activity.rs:1571–1587

()

        #[test]
        fn parent_topics() {
            let topic1 = topic("Climate change");
            let change = change(
                &topic1,
                Some(Timerange {
                    starts: date().into(),
                    prefix_format: TimerangePrefixFormat::StartYear,
                }),
            );

            if let Change::RemoveTopicTimerange(RemoveTopicTimerange { parent_topics, .. }) = change
            {
                assert!(!parent_topics.is_empty());
            } else {
                unreachable!("expected RemoveTopicTimerange");
            }
        }
    }

    mod upsert_link {