KotlinでEspressoテストがもっと書きやすくなるKakaoを試してみた / Trying Kakao which makes Espresso test easier to write

2018/3/19開催のAndroid Test Night #3の発表資料です。

1. Kotlin Espresso
      Kakao  2018.03.19   (sumio)
2. 04. p(': # 3 (TOYAMA Sumio) @sumio_tym (Twitter) / @sumio (GitHub) p$1: DeNA SWET 
    (Software Engineer in Test) p%):    p+/!: pDroidKaigi 2016-2018: Espresso UIAutomator p@IT2&,*  
   (UI Automator / Appium -") 2
3. , Espresso: AndroidUI$"%#' Kotlin: Android+*0-1 75)2 4( KotlinEspresso$"%!& .  
   #' Kakao /  63 3
4. Espresso pAndroid%+UI
   
    Android Open Source Project, licensed under the Apache License, Version 2.0 https://d.android.com/training/testing/espresso/index.html 4
   https://developer.android.com/training/testing/espresso/index.html &$ onView(ViewMatcher) .perform(ViewAction) .check(ViewAssertion); p ViewMatcher View" p ViewAction#! ') p ViewViewAssertion,  *( 
5. Kakao pAgoda  2017, licensed under the Apache License, Version 2.0 GitHub(
   ): https://github.com/agoda-com/Kakao API doc: https://goo.gl/ThVN6J pGitHub ! : Nice and simple DSL for Espresso in Kotlin p     Iñaki Villar
   One Espresso with Kotlin, please in GDG DevFest Bangkok 2017 https://speakerdeck.com/cdsap/one-espresso-with-kotlin-please 5
   https://github.com/agoda-com/Kakao/blob/1.2.1/README.md 
6.  6 repositories { jcenter() } dependencies { androidTestImplementation 'com.agoda.kakao:kakao:1.2.1' } ! Espresso3.0.1 )'
   RecyclerView
   GitHubmaster#(" % (1.2.1  &$)
7. 
    7 @Rule @JvmField val rule = ActivityTestRule(MyActivity::class.java) val screen = MyActivityScreen() @Test fun myKakaoTest() { screen { myButton { click() } myTextView { hasText("Clicked!") } } }
8.  
    8 @Rule @JvmField val rule = ActivityTestRule(MyActivity::class.java) val screen = MyActivityScreen() @Test fun myKakaoTest() { screen { myButton { click() } myTextView { hasText("Clicked!") } } } screen Screen(UI) 
9.  9 @Rule @JvmField val rule = ActivityTestRule(MyActivity::class.java) val screen = MyActivityScreen() @Test fun myKakaoTest() { screen { myButton { click() } myTextView { hasText("Clicked!") } } } perform(ViewAction) check(ViewAssertion)  
   Kakao
10. Screen
     10 open class MyActivityScreen: Screen<MyActivityScreen>() { val myButton: KButton = KButton { withId(R.id.button) withText("OK") } val myTextView: KTextView = KTextView { withId(R.id.textView) } }
11. Screen
     11 open class MyActivityScreen: Screen<MyActivityScreen>() { val myButton: KButton = KButton { withId(R.id.button) withText("OK") } val myTextView: KTextView = KTextView { withId(R.id.textView) } } Screen
12. Screen  12 open class MyActivityScreen: Screen<MyActivityScreen>() { val myButton: KButton = KButton { withId(R.id.button) withText("OK") } val myTextView: KTextView = KTextView { withId(R.id.textView) } } ViewKakao
     KBaseView  https://goo.gl/qveQ48
13. Screen  13 open class MyActivityScreen: Screen<MyActivityScreen>() { val myButton: KButton = KButton { withId(R.id.button) withText("OK") } val myTextView: KTextView = KTextView { withId(R.id.textView) } } onView(ViewViewMatcher) 
        AND
14. RecyclerView Espresso: RecyclerViewActions p : (  ) Kakao: KRecycler{View,Item} p  
      (KRecyclerItem) 14
15. KRecyclerItem) 15 Title 0 OK Title 4 OK Title 3 OK Title 2 OK Title 1 OK Title 0 OK R.id.title R.id.button ( Title 0 Clicked
16. 
    KRecyclerItem) 16 open class MyRecyclerScreen : Screen<MyRecyclerScreen>() { ... class Item(parent: Matcher<View>) : KRecyclerItem<Item>(parent) { val title: KTextView = KTextView(parent) {withId(R.id.title)} val button: KButton = KButton(parent) {withId(R.id.button)} } }
17. ( KRecyclerItem) 17 open class MyRecyclerScreen : Screen<MyRecyclerScreen>() { ... class Item(parent: Matcher<View>) : KRecyclerItem<Item>(parent) { val title: KTextView = KTextView(parent) {withId(R.id.title)} val button: KButton = KButton(parent) {withId(R.id.button)} } } KRecyclerItem (
18. KRecyclerItem) 18 open class MyRecyclerScreen : Screen<MyRecyclerScreen>() { ... class Item(parent: Matcher<View>) : KRecyclerItem<Item>(parent) { val title: KTextView = KTextView(parent) {withId(R.id.title)} val button: KButton = KButton(parent) {withId(R.id.button)} } } (
19. RecyclerView
    Screen 19 open class MyRecyclerScreen : Screen<MyRecyclerScreen>() { val recycler: KRecyclerView = KRecyclerView({ withId(R.id.recycler_view) }, itemTypeBuilder = { itemType(::Item) } ); class Item(parent: Matcher<View>) : KRecyclerItem<Item>(parent) { ... } }
20. RecyclerViewScreen 20 open class MyRecyclerScreen : Screen<MyRecyclerScreen>() { val recycler: KRecyclerView = KRecyclerView({ withId(R.id.recycler_view) }, itemTypeBuilder = { itemType(::Item) } ); class Item(parent: Matcher<View>) : KRecyclerItem<Item>(parent) { ... } }
       
21. RecyclerView
     21 val screen = MyRecyclerScreen() @Test fun testRecyclerView() { screen { recycler { childAt<MyRecyclerScreen.Item>(0) { title { hasText("Title 0") } button { click() hasText("Clicked") } }}}}
22. RecyclerView 0 22 val screen = MyRecyclerScreen() @Test fun testRecyclerView() { screen { recycler { childAt<MyRecyclerScreen.Item>(0) { title { hasText("Title 0") } button { click() hasText("Clicked") } }}}}
23. RecyclerView 0 23 val screen = MyRecyclerScreen() @Test fun testRecyclerView() { screen { recycler { childAt<MyRecyclerScreen.Item>(0) { title { hasText("Title 0") } button { click() hasText("Clicked") } }}}} 
     
24. RecyclerView 
     24 val screen = MyRecyclerScreen() @Test fun testRecyclerView() { screen { recycler { childAt<MyRecyclerScreen.Item>(0) { title { hasText("Title 0") } button { click() hasText("Clicked") } }}}}  KRecyclerItem     
25. RecyclerView
     25 val screen = MyRecyclerScreen() @Test fun testRecyclerView() { screen { recycler { childWith<MyRecyclerScreen.Item> { withDescendant { withText("Title 0") } } perform { title { ... } button { ... }}}}}
26. RecyclerView 
     26 val screen = MyRecyclerScreen() @Test fun testRecyclerView() { screen { recycler { childWith<MyRecyclerScreen.Item> { withDescendant { withText("Title 0") } } perform { title { ... } button { ... }}}}}   
     
27. RecyclerView 
     27 val screen = MyRecyclerScreen() @Test fun testRecyclerView() { screen { recycler { childWith<MyRecyclerScreen.Item> { withDescendant { withText("Title 0") } } perform { title { ... } button { ... }}}}} childWith()  perform
28.  :   p  Espresso
      pespresso-intent: KIntent p: https://goo.gl/ZiHuY3 pespresso-web: KWebView p: https://goo.gl/mfNYMa 28
29. 0)* pEspresso API 4 +%  !1 3.( p KBaseView : https://goo.gl/qveQ48 p ViewBuilder : https://goo.gl/esEMsf p BaseAction  : https://goo.gl/wNB82F p BaseAssertions   
    : https://goo.gl/3rYFMQ pEspresso 'API#/ $& p -) Espresso API2 "API, (matches / assert / act) 29
30.   pEspresso KotlinDSL 7 KakaoG? p$!#DSL (  pRecyclerView@B/+< pAPI9ED%; (API docC3  ) p42 .=
    1-2*F 6 A0) ,> p2018&3'5:
    8*"   30
31.     31