Redux for vanillaJS Medium.com article - Dom test example

dom.test.ts

import "jest";

describe("DOM image manipulation", () => {
  test("applies class to image on applyFilterToImage", () => {
    document.body.innerHTML = `
    <div id="some-dom-id">
      <div class="image-wrapper">
        <img class="image selected" src="testImage">
        <img class="image" src="testImage2">
        <img class="image" src="testImage3">
        <img class="image" src="testImage4">
        <img class="image" src="testImage5">
      </div>
    </div>
    `;

    dom.applyFiltersToImages([{ index: 1, filter: "greyscale" }]);
    expect(document.body.innerHTML).toMatchSnapshot();
  });
});