How to render PhotoAlbum in jest tests

[igordanchenko]

PhotoAlbum doesn't render any photos in jest tests.

[igordanchenko]

This is happening because jsdom sets all elements' clientWidth to 0. You can overcome this limitation with the following mock.

beforeAll(() => {
  jest
    .spyOn(HTMLElement.prototype, "clientWidth", "get")
    .mockImplementation(function () {
      return (this.className || "").split(" ").includes("react-photo-album")
        ? 800
        : 0;
    });
});