nordisk/facett

facett-toast/tests/render.rs

//! **CPU render-proof for facett-toast.** The inline unit tests only cover
//! `tick`/`dismiss`/`state_json`; the `ui()` overlay path (the anchored `Area`, the
//! per-toast frame, the icon/label, and the ✕ dismiss button) is never executed. This
//! drives a real `egui_kittest` frame so the painter + interaction code runs, and
//! asserts the toast text + dismiss control ride into the AccessKit tree.

use egui_kittest::kittest::Queryable;
use egui_kittest::Harness;

use facett_toast::{Level, Toasts};

#[test]
fn overlay_paints_toasts_and_dismiss_buttons() {
    let mut toasts = Toasts::new();
    toasts.push("assigned to you", Level::Info, 5.0);
    toasts.push("SLA breach on SUPP-1", Level::Error, 5.0);
    assert_eq!(toasts.len(), 2);

    let mut harness = Harness::new_ui(move |ui| {
        // `Toasts::ui` draws into an `Area` on the Context, not the current Ui.
        toasts.ui(ui.ctx());
    });
    // The overlay requests a repaint each frame (it animates while toasts live), so
    // run a fixed number of steps rather than to-quiescence.
    harness.run_steps(2);

    // Both toast texts + a dismiss control reached the tree.
    assert!(harness.query_by_label("assigned to you").is_some(), "the info toast painted");
    assert!(harness.query_by_label("SLA breach on SUPP-1").is_some(), "the error toast painted");
    assert!(harness.get_all_by_label("✕").count() >= 2, "each toast has a ✕ dismiss button");
}

#[test]
fn empty_overlay_paints_nothing_and_does_not_panic() {
    let mut toasts = Toasts::new();
    let mut harness = Harness::new_ui(move |ui| {
        toasts.ui(ui.ctx());
    });
    harness.run();
    // No toast labels present.
    assert!(harness.query_by_label("assigned to you").is_none());
}

#[test]
fn clicking_a_case_toast_is_addressable_after_render() {
    // A case-linked toast records its case key when clicked; drive the state through
    // the public API + assert state_json reflects the overlay after a render frame.
    let mut toasts = Toasts::new();
    toasts.push_case("case moved", Level::Success, 4.0, Some("SUPP-9".into()));
    let mut harness = Harness::new_ui(move |ui| {
        toasts.ui(ui.ctx());
        // The overlay's observable state is still the single case toast.
        assert_eq!(toasts.state_json()["count"], 1);
        assert_eq!(toasts.state_json()["toasts"][0]["case"], "SUPP-9");
    });
    harness.run_steps(2);
    assert!(harness.query_by_label("case moved").is_some());
}