// The guard a page holding unsaved work puts in front of in-app navigation.
// Run by `npm test`.
import assert from "node:assert/strict";
import { test } from "node:test";
import { mayNavigate, setNavGuard } from "../src/shell/navGuard.ts";

test("with no guard every move goes ahead", () => {
  setNavGuard(null);
  assert.equal(mayNavigate("/alerts"), true);
});

test("a guard that says no stops the move and is told where it was headed", () => {
  const asked = [];
  setNavGuard((to) => {
    asked.push(to);
    return false;
  });
  assert.equal(mayNavigate("/alerts"), false);
  assert.deepEqual(asked, ["/alerts"]);
  setNavGuard(null);
  assert.equal(mayNavigate("/alerts"), true, "removing it lets moves through");
});

test("a guard that says yes lets the move through", () => {
  setNavGuard(() => true);
  assert.equal(mayNavigate("/jobs"), true);
  setNavGuard(null);
});