index.test.js

const wait = require('./wait');
const process = require('process');
const cp = require('child_process');
const path = require('path');

test('throws invalid number', async () => {
  // await expect(wait('foo')).rejects.toThrow('milliseconds not a number');
});

// shows how the runner will run a javascript action with env / stdout protocol
test('test runs', () => {
  /*
  process.env['INPUT_MILLISECONDS'] = 100;
  const ip = path.join(__dirname, 'index.js');
  const result = cp.execSync(`node ${ip}`, {env: process.env}).toString();
  console.log(result);
  */
})