Spectron Headless Testing on Github Actions CI

.mocharc.json

{
    "require": "ts-node/register",
    "watch-files": [
        "./e2e/**/*.ts"
    ],
    "timeout": 300000
}

ci.yml

name: Execute e2e tests

on: [push]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - name: Use Node.js
        uses: actions/setup-node@v1
        with:
          node-version: "12.x"
      - run: npm install
      - run: xvfb-run --auto-servernum npm run e2e
      - run: npm run build:prod
        env:
          CI: true

package.json

"scripts": {
    "e2e": "npm run build:prod && cross-env TS_NODE_PROJECT='e2e/tsconfig.e2e.json' mocha e2e/**/*.ts --config ./.mocharc.json --exit",
  }