Testing an exported Node process with a dependency

testing-an-exported-node-process-with-a-dependency.js

const SomeDependency = require('some-dependency')
const { TopLevelProcess } = require('./topLevelProcess')

describe('Stubbing a dependency passed to a constructor in an exported Node process', () => {
  it('works as you would expect', () => {
    const stubbedDependency = stub(new SomeDependency())
    
    new TopLevelProcess(stubbedDependency).start()
    
    expect(/* something to have happened when `start()` is called */)
  })
})