configure puppeteer and gitpod

.gitpod.dockerfile

@@ -0,0 +1,9 @@
+FROM node:12
+
+RUN apt-get update && \
+    apt-get -y install xvfb gconf-service libasound2 libatk1.0-0 libc6 libcairo2 libcups2 \
+      libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 \
+      libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 \
+      libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 \
+      libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget && \
+    rm -rf /var/lib/apt/lists/*

.gitpod.yml

@@ -0,0 +1,4 @@
+image:
+  file: .gitpod.dockerfile
+tasks:
+- command: npm install

jest-puppeteer.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  launch: {
+    args: ['--no-sandbox', '--disable-setuid-sandbox']
+  }
+}

jest.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  preset: 'jest-puppeteer',
+  testRegex: './*\\.test\\.js$'
+}

package.json

@@ -4,7 +4,8 @@
   "description": "Web based viewer",
   "main": "index.js",
   "scripts": {
-    "test": "npm run lint",
+    "test": "jest --verbose",
+    "pretest": "npm run lint",
     "lint": "standard",
     "fix": "standard --fix"
   },
@@ -25,7 +26,11 @@
     "vec3": "^0.1.5"
   },
   "devDependencies": {
-    "standard": "^14.3.4",
-    "mineflayer": "^2.23.0"
+    "jest": "^26.1.0",
+    "jest-puppeteer": "^4.4.0",
+    "minecraft-wrap": "^1.2.3",
+    "mineflayer": "^2.23.0",
+    "puppeteer": "^5.1.0",
+    "standard": "^14.3.4"
   }
 }

test/simple.test.js

@@ -0,0 +1,12 @@
+/* eslint-env jest */
+/* global page */
+
+describe('Google', () => {
+  beforeAll(async () => {
+    await page.goto('https://google.com')
+  })
+
+  it('should display "google" text on page', async () => {
+    await expect(page).toMatch('google')
+  })
+})