/**
 * @file DocumentTitle.test.tsx
 * @description Guards the route→browser-tab-title map against missing i18n keys:
 * a key that does not exist renders as the raw key (the "run" bug), so each route
 * is asserted against its translated label.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { describe, it, expect, beforeAll } from "vitest";
import { render } from "@testing-library/react";
import { MemoryRouter } from "react-router-dom";
import i18n from "i18next";
import { DocumentTitle } from "../DocumentTitle";

const titleFor = (path: string) => {
  render(
    <MemoryRouter initialEntries={[path]}>
      <DocumentTitle />
    </MemoryRouter>
  );
  return document.title;
};

describe("DocumentTitle", () => {
  beforeAll(async () => {
    await i18n.changeLanguage("en");
  });

  it("titles the workspace route with its nav label, not the raw key", () => {
    expect(titleFor("/workspace")).toMatch(/^Workspace · /);
  });

  it("titles the other top-level routes", () => {
    expect(titleFor("/")).toMatch(/^Dashboard · /);
    expect(titleFor("/sessions")).toMatch(/^Sessions · /);
    expect(titleFor("/settings")).toMatch(/^Settings · /);
  });
});