「う、うご…動いた…よ…うん、動いたんじゃないかな? ニコリ…」
sinon.jsを使ってVIEWのテストを書いたけど、これ大変だっ.
Gruntfile.js
使いにくい…分かりにくい…初見殺し….
具体的に言うとgrunt-jasmine-contribとgrunt-template-jasmine-requirejsの組み合わせ.この2つのプラグインが作る_SpecRunner.htmlがどうなっているか逐一確認しながら設定しないといけないし、VIEWのテストはphantom.jsが動いている環境でないとできない.
Gruntfile.js - jasmineタスクの設定部分を抜粋
jasmine: {
all: {
src: '.tmp/scripts/{,*/}*.js',
options: {
keepRunner: true,
specs: '.tmp/spec/*.js',
template: require('grunt-template-jasmine-requirejs'),
templateOptions: {
requireConfigFile: '.tmp/scripts/main.js',
requireConfig: {
baseUrl: '.tmp/scripts',
paths: {
"sinon": "../../bower_components/sinon/lib/sinon"
}
}
},
vendor: [
"bower_components/jquery/dist/jquery.js",
"bower_components/jasmine-jquery/lib/jasmine-jquery.js"
]
}
}
},
もう色々間違っている気がする. どうしてこんな事に…
vendorの設定
Gruntfile.js jasmineタスクの設定項目にvendorを追加. Backbone.Viewのテストでfixtureのロードが必要なのでjasmine-jquery.jsを入れてある. 更にjasmine-jquery.jsが依存しているjquery.jsを追加するというrequire.js?何それ状態.
尚、ここにsinon.jsを含めると大惨事になる. 公式の人たちはbower_componentのsinonはオフィシャルじゃないから自分でビルドしろ(ソース)などと書いてあるけど流石にそれは勘弁…という事でrequireConfigのpathsに追加している. これだとうまくいく不思議.
テストコード
define [
'underscore'
'backbone',
'sinon',
'models/recipe',
'views/home'
], (_, Backbone, sinon, RecipeModel, HomeView) ->
# (省略...) #
describe "Yukaary backbone view test", ->
view = null
# If you activate that, it means our backbone with sion
# will not publish actual http request. This can be preserved
# communication errors when you open _SpecRunner.js on your brower,
# but loading fixture is not working under this environment.
#sinon.stub(XMLHttpRequest.prototype)
beforeEach ->
loadFixtures 'index.html'
view = new HomeView()
it "view is loaded", ->
expect(view).toBeDefined()
it "just debugging", ->
# html() is better way to see which html(fixture) is loaded.
#console.log $('body').html()
#console.log view.template
#console.log view.$el
#console.log view.render().$el.html()
#console.log view.tagName
#console.log view.$el.context
it "should have a right class", ->
expect(view.$el.selector).toBe('div#contents')
it "should have a right text", ->
expect(view.render().$el.find('a')).toHaveText("Become A Crafter!")
it "should handle an event", ->
# assign apy for the event.
eventSpy = sinon.spy()
view.on('create-crafter', eventSpy)
# render a view to get target button.
view.render()
# now let's click a button.
$('a#create-btn').click()
expect(eventSpy.callCount).toBe(1)
前回のテストにVIEWのテストを追加してみた.
先頭defineのところでsinon.js(require.conigに追加したためorz)と今回新たにテストするクラス「HomeView」を追記している.
後は謎の英語コメントに書いている通り. テストっぽいのは最後の「should handle an event」くらい.
- loadFixtureでメインページ(index.html)をロード
- HomeViewをレンダリング. これがdic#contentsに展開される.
- 展開したhtmlに含まれるa#create-btnリンクをクリック
- イベントがいい感じに処理され、最終的にHomeViewでcreate-crafterイベントが発行される
- create-crafterイベントを監視していたeventSpyにイベントが発行されたことを確認
今回は「eventSpyが1度呼ばれた」ことをcreate-crafterイベントが発行されたと解釈している. 他にも色々をやり方はあるみたい.
テスト実行
yukaarybox:yo-practice yukaary$ grunt test
>> Local Npm module "grunt-template-jasmine-requirejs" not found. Is it installed?
Running "test" task
Running "clean:server" (clean) task
Cleaning .tmp...OK
Running "coffee:dist" (coffee) task
Running "coffee:test" (coffee) task
Running "createDefaultTemplate" task
Running "jst:compile" (jst) task
File ".tmp/scripts/templates.js" created.
Running "compass:dist" (compass) task
directory .tmp/styles/
create .tmp/styles/main.css (2.567s)
Compilation took 2.576s
Running "compass:server" (compass) task
unchanged app/styles/main.scss
Compilation took 0.18s
Running "connect:test" (connect) task
Started connect web server on http://localhost:9001
Running "jasmine:all" (jasmine) task
Testing jasmine specs via PhantomJS
Yukaary's 1st test
✓ Maki san should dig tunnel.
✓ Zunko san shoud have zunda mochi.
Yukaary 1st backbone model test
✓ depended components are loaded.
✓ sinon is available
Yukaary backbone view test
✓ view is loaded
✓ just debugging
✓ should have a right class
✓ should have a right text
✓ should handle an event
9 specs in 0.474s.
>> 0 failures
Done, without errors.
Execution Time (2014-07-03 13:09:43 UTC)
loading tasks 2s ▇▇▇▇▇▇▇▇▇▇ 21%
coffee:dist 141ms ▇ 1%
compass:dist 3.6s ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 38%
compass:server 464ms ▇▇▇ 5%
jasmine:all 3.2s ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 34%
Total 9.4s
やったぜ.
補足1
grunt-jasmine-contrib、一昔前にあった「grunt-jasmine-runner」を引き継いだものらしい.
Gruntfile.jsには一切出てこないけど「$grunt test」とやると、phantoms.js(とローカルサーバ)がまず起動し、その後テストが実行されている.
抜粋: grunt testした時の標準出力
Running "connect:test" (connect) task
Started connect web server on http://localhost:9001
Running "jasmine:all" (jasmine) task
Testing jasmine specs via PhantomJS
_SpecRunner.htmlをブラウザで開いたときは当然サーバーは動いていないので,XMLHttpRequestのsendを実行して失敗する.
テスト実行前に
sinon.stub(XMLHttpRequest.prototype)
を呼んでおくとsinon.jsがXMLHttpRequestに関する関数をラップして実行されなくするので_SpecRunner.htmlを開いてもエラーは出なくなる. ただし、fixtureが読み込まれないのでVIEWにテストが大幅に制約を受ける.
結局、裏側でサーバーを動かしてHeadlessでテストしろってことなんだと思う.
main.coffee
前回からの変更点としてbowwr_componentディレクトリがなぜかappディレクトリ下にも出来ていたのを削除. app/scripts/main.coffeeのrequire.configは2つ上のアプリケーションルートディレクトリを見るように変更.
app/scripts/main.cofee (関連部のみ抜粋)
require.config
shim:
bootstrap:
deps: ['jquery'],
exports: 'jquery'
paths:
jquery: '../../bower_components/jquery/dist/jquery'
backbone: '../../bower_components/backbone/backbone'
underscore: '../../bower_components/lodash/dist/lodash'
bootstrap: '../../bower_components/sass-bootstrap/dist/js/bootstrap',
これでGruntfile.jsでパスを再指定する必要はなくなったが,今回sinon.jsを新たに利用するので,その分だけ付け足している.
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