Testing promise with ava

Question

I try to test this class

class Scraper {
  async run() {
    return await nightmare
      .goto(this.url)
      .wait('...')
      .evaluate(()=>{...})
      .end
  }
}

And my test looks like this:

test('Scraper test', t => {
  new Scraper().run().then(() => {
    t.is('test', 'test')
  })
})

Test fails:

Test finished without running any assertions

EDIT

repository on github: https://github.com/epyx25/test

test file: https://github.com/epyx25/test/blob/master/src/test/scraper/testScraper.test.js#L12

Answer 1

You need to return the promise. Assertion planning is not needed:

test('Scraper test', t => {
  return new Scraper().run().then(() => {
    t.is('test', 'test')
  })
})

Or better still, using an async test:

test('Scraper test', async t => {
  await new Scraper().run()
  t.is('test', 'test')
})