base-domain/spec/facade.coffee

simple module to help build Domain-Driven Design

Facade = require('../src/lib/facade')

describe 'Facade', ->


    describe '@createInstance', ->

        it 'returns instance of Facade', ->
            f = Facade.createInstance()
            expect(f).to.be.instanceof Facade


        it 'returns instance of extended class', ->
            class ChildFacade extends Facade

            f = ChildFacade.createInstance()
            expect(f).to.be.instanceof Facade
            expect(f).to.be.instanceof ChildFacade

    describe 'error', ->

        it 'throw DomainError with reason', ->

            f = Facade.createInstance()
            err = f.error('notANumber')

            expect(err).to.have.property 'reason', 'notANumber'
            expect(f.isDomainError(err)).to.be.true