esm syntax changes

src/__tests__/connection.test.js

@@ -1,7 +1,6 @@
 import connection from '../networking/connection';
 import packet from '../networking/packet';
-
-const Socket = require('net');
+import Socket from 'net';
 
 test(`connect fails when error occurs during createConnection`, async () => {
   const mock_create = (port, host, cb) => {

src/__tests__/constants.test.js

@@ -1,6 +1,5 @@
-import { get_version, instance_id, package_json } from '../utils/constants';
-
-const uuid = require('uuid');
+import {get_version, instance_id, package_json} from '../utils/constants';
+import * as uuid from 'uuid';
 
 test(`can read 'package.json'`, () => {
   console.log(package_json);