@stencila/dockter/tests/DockerExecutor.test.ts

import Docker from 'dockerode'
import DockerExecutor from '../src/DockerExecutor'
import { fixture } from './test-functions'

const docker = new Docker
const executor = new DockerExecutor

jest.setTimeout(30 * 60 * 1000)

/**
 * Tests of executing container
 */

test('execute:stdout', async () => {

  let build = await docker.buildImage({
    context: fixture('dockerfile-execute-stdout'),
    src: ['Dockerfile']
  }, {t: 'dockerfile-execute-stdout'})

  let built = await docker.modem.followProgress(build, onFinished)

  async function onFinished () {
    let output = await executor.execute('dockerfile-execute-stdout', __dirname)
    expect(output).toEqual('hello')
  }

})

test('execute:stderr', async () => {

  let build = await docker.buildImage({
    context: fixture('dockerfile-execute-stderr'),
    src: ['Dockerfile']
  }, {t: 'dockerfile-execute-stderr'})

  let built = await docker.modem.followProgress(build, onFinished)

  async function onFinished () {
    let outputError = ''

    const spy = jest.spyOn(console,'error')
    .mockImplementation((data:string) => {
      outputError += data
    })

    await executor.execute('dockerfile-execute-stderr', __dirname)

    expect(outputError.trim()).toBe('epicfail')

    spy.mockRestore()
  }

})