TypeScript Testing of jQuery Ajax from Node.js

FreeGeoIP.d.ts

interface FreeGeoIP {
    ip: string;
    country_code: string;
    country_name: string;
    region_code: string;
    region_name: string;
    city: string;
    zip_code: string;
    time_zone: string;
    latitude: number;
    longitude: number;
    metro_code: number;
}

install.sh

#!/bin/sh -e
npm install --save-dev @types/node

# unit testing
npm install --save-dev chai
npm install --save-dev mocha
npm install --save-dev @types/chai
npm install --save-dev @types/mocha

# jquery
npm install --save jquery
npm install --save-dev jsdom
npm install --save-dev @types/jquery
npm install --save-dev @types/jsdom

jquery-tests.ts

import * as mocha from "mocha";
import { assert } from "chai";
import * as jsdom from "jsdom";
import * as jquery from "jquery";

describe("jquery tests", () => {
    it("get ip", done => {
        // window is required for jQuery to work in Node.js
        // http://stackoverflow.com/a/36238302/23059
        jsdom.env("", (err, window) => {
            const $ = require("jquery")(window) as JQueryStatic;
            $.ajax({url: "http://freegeoip.net/json/"}).done(data => {
                const geoip = data as FreeGeoIP;
                console.log(geoip);
                console.log("ip is " + geoip.ip);
                assert.isString(geoip.ip);
                assert.isString(geoip.country_code);
                done();
            });
        });
    });
});

output.txt

PS C:\Users\c\ts\fetch> tsc
PS C:\Users\c\ts\fetch> mocha .\jquery-tests.js


  jquery tests
{ ip: '23.16.226.33',
  country_code: 'CA',
  country_name: 'Canada',
  region_code: 'BC',
  region_name: 'British Columbia',
  city: 'Revelstoke',
  zip_code: '',
  time_zone: 'America/Vancouver',
  latitude: 51,
  longitude: -118.1833,
  metro_code: 0 }
ip is 23.16.226.33
    √ get ip (624ms)


  1 passing (624ms)

tsconfig.js

{
    "compilerOptions": {
        "module": "commonjs",
        "sourceMap": true
    },
    "files": [
        "jquery-tests.ts",
        "FreeGeoIP.d.ts"
    ],
    "typeRoots": [
        "../node_modules/@types"
    ]
}