//! Tests for `report::serve` (split at the 500-line cap).

use crate::report::ReportRow;
use crate::report::quality::Medals;
use crate::report::stale::ledger_differs;

fn row(name: &str, up: Option<i64>) -> ReportRow {
    ReportRow {
        name: name.to_string(),
        title: name.to_string(),
        model: "m".to_string(),
        parent: "m".to_string(),
        quant: "nvfp4".to_string(),
        engine: "vllm".to_string(),
        image: "img".to_string(),
        nodes: None,
        tp: 1,
        deploy: "docker".to_string(),
        port: 30000,
        incomplete: false,
        up,
        up_cluster: None,
        runs: 0,
        fleet_up: false,
        fleet_since: None,
        medals: Medals::default(),
        stale: false,
        reports: Vec::new(),
    }
}

/// A `stop` that closed a ledger (or a `serve` that opened one) must force a
/// full re-collect — that is how the panel learns a lane is gone.
#[test]
fn ledger_diff_detects_stopped_and_started_lanes() {
    use std::collections::HashSet;
    let rows = vec![row("a", Some(1000)), row("b", None), row("c", Some(2000))];
    let led = HashSet::from(["a".to_string()]);
    assert!(
        ledger_differs(&rows, &led),
        "a closed run must force a re-collect"
    );
    let led = HashSet::from(["a".to_string(), "c".to_string()]);
    assert!(!ledger_differs(&rows, &led), "ledger matches the rows");
    let led = HashSet::from(["a".to_string(), "b".to_string(), "c".to_string()]);
    assert!(
        ledger_differs(&rows, &led),
        "a newly opened run must force a re-collect"
    );
}