lumrop/tests/useTitle.test.ts

// Copyright (c) 2022 Tudor Stanciu

import { renderHook, act } from "@testing-library/react";
import { useTitle } from "../src";

describe("useTitle", () => {
  it("should set the document title", () => {
    const title = "New Page Title";
    renderHook(() => useTitle(title));
    expect(document.title).toBe(title);
  });

  it("should reset the document title when unmounted", () => {
    const title = "New Page Title";
    const { unmount } = renderHook(() => useTitle(title));
    expect(document.title).toBe(title);

    act(() => {
      unmount();
    });

    // The document title should now be reset to its previous value
    expect(document.title).not.toBe(title);
  });
});