Use Jest w/ Electron Runner so tests run & pass in a real browser

.travis.yml

@@ -1,3 +1,11 @@
 language: node_js
 # default is apparently 0.10.48 for some reason O.O
-node_js: '8.9'
+node_js: '10.16.0'
+
+# cache folder with Electron binary (https://github.com/electron/electron/blob/master/docs/tutorial/installation.md#cache)
+cache:
+  directories:
+    - ~/.cache
+
+# run with xvfb bc it's needed for Electron (https://docs.travis-ci.com/user/gui-and-headless-browsers/#using-the-xvfb-run-wrapper)
+script: xvfb-run npm test

jest.config.js

@@ -0,0 +1,7 @@
+module.exports = {
+  runner: '@jest-runner/electron',
+  testEnvironment: '@jest-runner/electron/environment',
+  // don't need to run babel on anything
+  // (and browserify bundle takes very long and sometimes errors out if we do)
+  transform: {}
+}

package.json

@@ -36,28 +36,20 @@
   ],
   "scripts": {
     "changelog": "changelog-maker",
-    "test": "npm run clean && npm run browserify && npm run webpack && ava",
-    "test:browserify": "npm run browserify && ava test/browserify.spec.js",
-    "test:webpack": "npm run webpack && ava test/webpack.spec.js",
+    "test": "npm run clean && npm run browserify && npm run webpack && jest",
     "browserify": "node test/build-config/_browserify.config.js",
     "webpack": "webpack --config test/build-config/_webpack.config.js",
     "clean": "rm -rf build/ && mkdir build/"
   },
-  "ava": {
-    "require": [
-      "./test/utils/_setup-browser-env.js"
-    ]
-  },
   "peerDependencies": {
     "three": "^0.73.0"
   },
   "devDependencies": {
     "@agilgur5/changelog-maker": "^3.0.0",
-    "@react-frontend-developer/jsdom-worker": "^0.1.1",
-    "ava": "^2.1.0",
-    "browser-env": "^3.2.6",
+    "@jest-runner/electron": "^2.0.2",
     "browserify": "^16.2.3",
-    "node-fetch": "^2.6.0",
+    "electron": "^7.1.2",
+    "jest": "^24.9.0",
     "three": "^0.73.2",
     "webpack": "^4.34.0",
     "webpack-cli": "^3.3.4",

test/browserify.spec.js

@@ -1,8 +1,8 @@
-import test from 'ava'
+const Physijs = require('./utils/browserify/_import-bundle-to-module.js')
 
-import Physijs from './utils/browserify/_import-bundle-to-module.js'
-
-test('Scene creation', t => {
-  const scene = new Physijs.Scene()
-  t.is(scene.type, 'Scene')
+describe('browserify', () => {
+  it('should create a scene', () => {
+    const scene = new Physijs.Scene()
+    expect(scene.type).toBe('Scene')
+  })
 })

test/webpack.spec.js

@@ -1,8 +1,8 @@
-import test from 'ava'
+const Physijs = require('./utils/webpack/_import-bundle-to-module.js')
 
-import Physijs from './utils/webpack/_import-bundle-to-module.js'
-
-test('Scene creation', t => {
-  const scene = new Physijs.Scene()
-  t.is(scene.type, 'Scene')
+describe('webpack', () => {
+  it('should create a scene', () => {
+    const scene = new Physijs.Scene()
+    expect(scene.type).toBe('Scene')
+  })
 })