| 1 | expect = require('chai').expect
|
| 2 |
|
| 3 | Injector = require('injector')
|
| 4 | inject = require('inject')
|
| 5 |
|
| 6 | class SomeSingleton
|
| 7 | @scope: 'SINGLETON'
|
| 8 | constructor: ->
|
| 9 | @name = 'singleton!'
|
| 10 |
|
| 11 | describe 'Inject', ->
|
| 12 | it 'should inject requried fields', ->
|
| 13 | class MyCat
|
| 14 | constructor: (@likes) ->
|
| 15 | @name = 'Mittenslayer'
|
| 16 |
|
| 17 | class CatSitter
|
| 18 | cat: inject(MyCat)
|
| 19 | age: 44
|
| 20 |
|
| 21 | injector = new Injector()
|
| 22 | sitter = injector.getInstance(CatSitter)
|
| 23 | expect(sitter.cat).to.exist
|
| 24 | expect(sitter.cat.name).to.equal 'Mittenslayer'
|
| 25 | expect(sitter.cat.likes).to.not.exist
|
| 26 |
|
| 27 | it 'should pass construction fields', ->
|
| 28 | class MyCat
|
| 29 | constructor: (@likes) ->
|
| 30 | @name = 'Mittenslayer'
|
| 31 |
|
| 32 | class CatSitter
|
| 33 | cat: inject(MyCat, 'kibble')
|
| 34 | age: 44
|
| 35 |
|
| 36 | injector = new Injector()
|
| 37 | sitter = injector.getInstance(CatSitter)
|
| 38 | expect(sitter.cat.name).to.equal 'Mittenslayer'
|
| 39 | expect(sitter.cat.likes).to.equal 'kibble'
|
| 40 |
|
| 41 | it 'should not pass argument params to a singleton', ->
|
| 42 | class MyCat
|
| 43 | @scope: 'SINGLETON'
|
| 44 | constructor: (@likes) ->
|
| 45 | @name = 'Mittenslayer'
|
| 46 |
|
| 47 | injector = new Injector()
|
| 48 | create = ->
|
| 49 | class CatSitter
|
| 50 | cat: inject(MyCat, 'kibble')
|
| 51 | injector.getInstance(CatSitter)
|
| 52 | expect(create).to.throw /Cannot assign arguments to a singleton/
|
| 53 |
|
| 54 | it 'should resolve a parents injected fields', ->
|
| 55 | class Parent
|
| 56 | parentField: inject(SomeSingleton)
|
| 57 |
|
| 58 | class Child extends Parent
|
| 59 | childField: inject(SomeSingleton)
|
| 60 |
|
| 61 | injector = new Injector()
|
| 62 | child = injector.getInstance(Child)
|
| 63 |
|
| 64 | expect(child.childField).to.exist
|
| 65 | expect(child.parentField).to.exist
|
| 66 | expect(child.childField).to.equal (child.parentField)
|
| 67 |
|
| 68 | it 'should have injected fields in place before the constructor is called', (done) ->
|
| 69 | class Constd
|
| 70 | buddy: inject(SomeSingleton)
|
| 71 | age: 23
|
| 72 |
|
| 73 | constructor: ->
|
| 74 | expect(@buddy).to.exist
|
| 75 | expect(@buddy._requiresInjection_).to.not.exist
|
| 76 | expect(@buddy.name).to.equal 'singleton!'
|
| 77 | expect(@age).to.equal 23
|
| 78 | done()
|
| 79 |
|
| 80 | new Injector().getInstance(Constd)
|