Controlling Parallelism

I looked up “nested tests” and found this issue but that discussion was going a different direction from what I was thinking.

I’m working on a CLI tool project and I want to convert my test from that shells script to Node.js, preferably with Ava. However, some things need to happen in a certain order.

Here’s how far I’ve gotten:

import test from 'ava'
import shell from 'shelljs'
import exists from 'doug/utils/exists'

shell.config.fatal = true

test.before('doug-app init', (t) => {
  // initialize doug-app
  shell.cd('~')
  shell.exec('doug-app init doug-app-test')
  t.truthy(exists('doug-app-test'))

  // link doug-app
  shell.cd('cd ~/doug-app-test')
  shell.exec('npm link doug-app')

  // setup local git origin
  shell.mkdir('doug-app-origin')
  shell.cd('doug-app-origin')
  shell.exec('git init --bare')

  // push initial commit
  shell.cd('~/doug-app-test')
  shell.exec([
    'git init',
    'git add .',
    'git config --global user.email "[e-mail]"',
    'git config --global user.name "Doug Test"',
    'git commit -m "doug-app-test"',
    'git remote add origin ~/doug-app-origin',
    'git push origin master',
  ].join('; '))
})

test.test('doug-app test', (t) => {
  shell.cd('cd ~/doug-app-test')
  shell.exec('doug-app test')
})

test.test('doug-app build', (t) => {
  shell.cd('cd ~/doug-app-test')
  shell.exec('doug-app build')
  t.truthy(exists('dist'))
})

test.test('doug-app deploy', (t) => {
  shell.cd('cd ~/doug-app-test')
  shell.exec('doug-app deploy')
  shell.cd('~/doug-app-origin')
  t.truthy(shell.exec('git branch | grep gh_pages').stdout.trim())
})

The thing is, deploy need to happen after build. But it is a different test, and can in parallel with other commands such as test…

[novemberborn]

Yup. Or perhaps do all that setup in a test.before() and assign a promise for each stage to a variable. Then in your tests you could write const result = await buildStage and then do the assertions.

[ccorcos]

I like that a lot actually. Thanks @novemberborn!