Testing a Node Process with a dependency

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

const proxyquire = require('proxyquire')
const SomeDependency = require('some-dependency')

describe('Stubbing a dependency passed to a constructor in a Node process', () => {
  it('is not particularly elegant', () => {
    const stubbedDependency = stub(new SomeDependency())
    const StubbedDependencyConstructor = () => stubbedDependency
    
    proxyquire('./topLevelProcess', { 'some-dependency': StubbedDependencyConstructor })
    
    expect(/* something to have happened when `start()` is called */)
  })
})