nordisk/facett

facett-geomap/tests/a11y.rs

//! **FC-4 interaction-layer proof for `facett-geomap`.** Build a real `GeoMap`
//! (Swedish points + two named hotspots), render it headless through
//! `egui_kittest`, and assert the AccessKit tree carries:
//!
//!  1. the **pane summary** node — an `Image` role whose label names the title +
//!     both layer counts and whose `numeric_value` is the point count, and
//!  2. one **per-hotspot** node — a `Button` role whose label is `"{label} ·
//!     {count} points"` and whose `numeric_value` is the hotspot count.
//!
//! If a robot driver / screen reader / `get_by_label` can find these, the
//! custom-painted geomap is FC-4 compliant. (Before the fix the pane had a
//! `Sense::click_and_drag()` response but **no** `widget_info`, and the painted
//! hotspots emitted zero accessibility nodes.)
//!
//! Run: `cargo test -p facett-geomap --test a11y`

use std::cell::RefCell;

use egui::accesskit::Role;
use egui_kittest::Harness;
use egui_kittest::kittest::{NodeT, Queryable};

use facett_core::Facet;
use facett_geomap::{GeoMap, Hotspot};

#[test]
fn pane_summary_and_hotspot_nodes_are_queryable() {
    // Inject real input: 4 Swedish points + two named hotspots (Malmö, Göteborg).
    let map = RefCell::new(GeoMap::new(
        "Sweden",
        vec![
            (18.0686, 59.3293), // Stockholm
            (11.9746, 57.7089), // Göteborg
            (13.0038, 55.6050), // Malmö
            (17.6389, 59.8586), // Uppsala
        ],
        vec![
            Hotspot::new(13.0038, 55.6050, 320, "Malmö"),
            Hotspot::new(11.9746, 57.7089, 210, "Göteborg"),
        ],
    ));

    let mut harness = Harness::new_ui(|ui| {
        map.borrow_mut().ui(ui);
    });
    harness.run();

    // ── 1. the pane summary node: title + all layer counts, value = points ──
    let pane = harness
        .get_by_label("Sweden — 4 points · 2 hotspots · 0 basemap ways")
        .accesskit_node();
    assert_eq!(pane.role(), Role::Image, "the whole geomap pane is an Image-role summary node");
    assert_eq!(
        pane.numeric_value(),
        Some(4.0),
        "pane numeric_value must be the point count (4), read back exactly"
    );

    // ── 2. a per-hotspot node: "{label} · {count} points", value = count ─────
    let malmo = harness.get_by_label("Malmö · 320 points").accesskit_node();
    assert_eq!(malmo.role(), Role::Button, "each hotspot is a clickable Button node");
    assert_eq!(
        malmo.numeric_value(),
        Some(320.0),
        "hotspot numeric_value must be its count (320)"
    );

    // the second hotspot is independently queryable too.
    let goteborg = harness.get_by_label("Göteborg · 210 points").accesskit_node();
    assert_eq!(goteborg.role(), Role::Button);
    assert_eq!(goteborg.numeric_value(), Some(210.0), "second hotspot count rides in too");

    // Feed the matrix: ok iff the FC-4 a11y nodes are queryable with the right
    // values (pane=4 points, Malmö=320, Göteborg=210).
    #[cfg(feature = "testmatrix")]
    facett_core::testmatrix::emit(
        "GeoMap",
        "fc4_accesskit_nodes",
        pane.numeric_value() == Some(4.0)
            && malmo.numeric_value() == Some(320.0)
            && goteborg.numeric_value() == Some(210.0),
        "pane=4 points, hotspots Malmö=320 / Göteborg=210 queryable",
    );
}