Installation

npm install --save-dev wapiti

If you want to use it with Jest, you will need to add it as a dependency as well but you're free to use any test runner that will let you run tests with promises.

You then just have to require it in your tests.

const Wapiti = require("wapiti");

test("it should get the content of elements of the page", () => {
  return Wapiti().goto("http://localhost:3000/index.html")
    .capture(() => document.querySelector("h1").textContent)
    .capture(() => document.querySelector("h2").textContent)
    .run()
    .then(result => {
      expect(result).toEqual(["content of h1", "content of h2"]);
    });
});

Or if you prefer async/await

const Wapiti = require("wapiti");

test("it should get the content of elements of the page", async () => {
  const result = await Wapiti().goto("http://localhost:3000/index.html")
    .capture(() => document.querySelector("h1").textContent)
    .capture(() => document.querySelector("h2").textContent)
    .run();
  expect(result).toEqual(["content of h1", "content of h2"]);
});