GuideMe/setupTests.js at master · bkenza/GuideMe · GitHub

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// setup-tests.js

import "react-native";
import "jest-enzyme";
import Adapter from "enzyme-adapter-react-16";
import Enzyme from "enzyme";

/**
 * Set up DOM in node.js environment for Enzyme to mount to
 */
const { JSDOM } = require("jsdom");

const jsdom = new JSDOM("<!doctype html><html><body></body></html>");
const { window } = jsdom;

function copyProps(src, target) {
  Object.defineProperties(target, {
    ...Object.getOwnPropertyDescriptors(src),
    ...Object.getOwnPropertyDescriptors(target),
  });
}

global.window = window;
global.document = window.document;
global.navigator = {
  userAgent: "node.js",
};
copyProps(window, global);

/**
 * Set up Enzyme to mount to DOM, simulate events,
 * and inspect the DOM in tests.
 */
Enzyme.configure({ adapter: new Adapter() });