Function diameter_single_node

nodedb/src/engine/graph/algo/diameter.rs:229–244

()

    #[test]
    fn diameter_single_node() {
        let mut csr = CsrIndex::new();
        csr.add_node("solo").unwrap();
        csr.compact().expect("no governor, cannot fail");

        let batch = run(
            &csr,
            &AlgoParams {
                mode: Some("EXACT".into()),
                ..Default::default()
            },
        );
        let json = batch.to_json().unwrap();
        let rows: Vec<serde_json::Value> = serde_json::from_slice(&json).unwrap();
        assert_eq!(rows[0]["diameter"].as_i64().unwrap(), 0);
    }
}