Function betweenness_with_sampling

nodedb/src/engine/graph/algo/betweenness.rs:229–243

()

    #[test]
    fn betweenness_with_sampling() {
        let mut csr = CsrIndex::new();
        for i in 0..20 {
            csr.add_edge(&format!("n{i}"), "L", &format!("n{}", i + 1))
                .unwrap();
        }
        csr.compact().expect("no governor, cannot fail");

        let params = AlgoParams {
            sample_size: Some(5),
            ..Default::default()
        };
        let batch = run(&csr, &params);
        assert_eq!(batch.len(), 21);
    }

    #[test]
    fn betweenness_empty() {