eventric/src/context/feature_domain_service.spec.coffee

Build JavaScript applications with Behaviour-driven Domain Design. Based on DDD, BDD, CQRS and EventSourcing.

describe 'DomainService Feature', ->

  describe 'given we created and initialized some example context including a domain service', ->
    exampleContext = null
    specialStub = null
    beforeEach ->
      exampleContext = eventric.context 'exampleContext'

      exampleContext.defineDomainEvent 'SomethingHappened', ->
      exampleContext.addCommandHandler 'DoSomething', (params, callback) ->
      	@$domainService 'DoSomethingSpecial', params, callback

      specialStub = sandbox.stub()
      exampleContext.addDomainService 'DoSomethingSpecial', (params, callback) ->
        specialStub params.special
        @$emitDomainEvent 'SomethingHappened'
        callback null, true


    describe 'when we call the command', ->
      it 'then the domain service should be executed correctly', (done) ->
        exampleContext.initialize =>
          exampleContext.command 'DoSomething', special: 'awesome'
          .then =>
            expect(specialStub).to.have.been.calledWith 'awesome'
            done()


      it 'then should have emitted the correct domain event', (done) ->
        exampleContext.subscribeToDomainEvent 'SomethingHappened', (domainEvent) ->
          expect(domainEvent.name).to.be.ok
          done()

        exampleContext.initialize =>
          exampleContext.command 'DoSomething', special: 'awesome'