Espressoテストコードの同期処理を究める / Synchronization capabilities of Espresso

DroidKaigi 2018のセッション「Espressoテストコードの同期処理を究める」(2018/2/8 15:40- @ Room5) の発表スライドです。

Transcript

1. Espresso 
   
    2018.02.08  (sumio_tym) DroidKaigi 2018 @ Day1 Room5 15:40-
2. /3- p'&: " 2 (TOYAMA Sumio) @sumio_tym (Twi0er) / @sumio (GitHub) p#0: DeNA SWET 
    (So<ware Engineer in Test) p$(:    p 
   : pSTAR (  ,.) p@IT1 %*)   
   (UI Automator / Appium+!) 2
3. -   pAndroidUI #Espresso 0/7'683%  9 1)  p.5,(1)   3 0/7'"$2 
   
   Espresso ! sleep() 4+ &*
4.  ! 1. Espresso   2. Espresso# 3.   "   4. ($ )% 5. sleep() '  & 4
5.  1. Espresso
   2. Espresso!  3.     4. &"'# 5. sleep()% $ 5
6. Espresso  pAndroid)/ UI https://d.android.com/training/testing/espresso/index.html p%3$28#3 pEspresso Test Recorder pDroidKaigi 2017 ( Espresso 
    07 https://goo.gl/D73jBN p 69
   +", "4 p. 5!*1&    6
   https://developer.android.com/training/testing/espresso/index.html -'
7. Espresso  
    (https://goo.gl/VSHigS) prepositoriesgoogle() pdependencies 
    pconfiguration: androidTestImplementation pgroup: com.android.support.test.espresso pmodule: espresso-core pversion: 3.0.1 ptestInstrumentationRunner: "android.support.test.runner.AndroidJUnitRunner" 7
8. Espresso   
     (# $"OFF) p  
    p 
    p 
   
   % !
    8
9. Espresso
   psrc/androidTest/java  pAndroid Test Support Library  9 @RunWith(AndroidJUnit4.class) public class MyEspressoTest { @Rule public ActivityTestRule<...> activityActivityTestRule = ...; ... }
10. Espresso API   
    OK
    perform()
    check()  10 onView(ViewMatcher) .perform(ViewAction) .check(ViewAssertion); p ViewMatcher  View  p ViewAction p  ViewViewAssertion 
11. Espresso API  API 
    
      https://goo.gl/hx6YPo 11 onView(ViewMatcher) .perform(ViewAction) .check(ViewAssertion); p ViewMatcher
     View  p ViewAction p  ViewViewAssertion 
12.    Espresso
    
      p(* p+, 
    ' p!#"& $% ) p  p
     ' pAPI 
    
     12
13.    Espresso    p p ! 
     p  
    p  p
      pAPI 
    
     13 !
14.   1. Espresso   2. Espresso
     3.     4. " # 5. sleep()!   14
15. !'")(.
     +$ &
    /0  - 3, *  (https://goo.gl/poLgkZ) p  pAsyncTask   p%2IdlingResource &(#1) 15
16.  
        pHandler p Thread Executor p p 16 H Android J
17. ',(.-4  1)+ 
     $56 3820 (https://goo.gl/poLgkZ) p"&% pAsyncTask!#& % p 
    IdlingResource  17 AsyncTask1/  *7  Espresso  
18.  pEspresso!&"('+/  AsyncTask,  pOkHttpRxJava!&"(#.) p  IdlingResource$0  !&"(-%#.*  18
19.  1. Espresso
    2. Espresso  3.    4.  5. sleep() 
      19
20. .2 / "$  ! / 
      2 pandroid.support.test.espresso pIdlingResource pIdlingRegistry .2 #   1. IdlingResource ' )( IdlingRegistry &% 20
21. IdlingResource
     21 public interface IdlingResource { public String getName(); public boolean isIdleNow(); // # %& ? ("* + ! IdlingResource! 
     $),' "
22. IdlingResource
     22 //  public void registerIdleTransitionCallback( ResourceCallback callback); public interface ResourceCallback { public void onTransitionToIdle(); } }
23. IdlingResource
     23 //  public void registerIdleTransitionCallback( ResourceCallback callback); public interface ResourceCallback { public void onTransitionToIdle(); } } !"   callback.onTransitionToIdle() 
      (  )#!!
24. IdlingResource
     24 Espresso
    
     IdlingResource onView()... isIdleNow() UI   onTransitionToIdle() registerIdleTransitionCallback(this) false   UI
25. IdlingResource
     25 private ResourceCallback callback; private boolean idle = false; public void registerIdleTransitionCallback( ResourceCallback callback) { this.callback = callback } // 
26. IdlingResource
    26 // private ResourceCallback callback; // private boolean idle = false; public void backgroundWorkDone() { idle = true; callback.onTransitionToIdle(); } //    
     
    
27. IdlingResource  27 // private ResourceCallback callback; // private boolean idle = false; public boolean isIdleNow() { if (callback != null && idle) { callback.onTransitionToIdle(); } return idle; }  
       
28. IdlingRegistry IdlingResource
    / p  
      28 private IdlingRegistry reg; ... reg = IdlingRegistry.getInstance();
29. IdlingRegistry IdlingResource' %#/$" 29 p
    IdlingResource ( !&  ) reg.register(idlingResource); p
    IdlingResource (
    %#  ) reg.unregister(idlingResource);
30. IdlingRegistry I P pIdlingRegistry: Espresso 3.0  p API: pEspresso.registerIdlingResources() pEspresso.unregisterIldingResources() p ) ./7 / :/. p ) A 
       p / 1::7 ( /: / 66 4/ 65 30
31.  p&+',/*(3- 
    IdlingResource% # )7 1 p3 $!")7  p    )78 pIdlingResource)7 
     IdlingRegistry64/.5  p02  
    64  31
32.   1. Espresso   2. Espresso" 3.  !   4. 
     5. sleep() $  # 32
33. : 1. 
    : CountingIdlingResource 2. CountingIdlingResource p EJ 3. p . IdlingResource p R 4 33
34. CountingIdlingResource%$ p'# !(
      ")   pincrement(): ")   ('# & ) pdecrement(): ")   ('#!(& ) 34
      0
     
35. CountingIdlingResource 35 AtomicInteger counter = new AtomicInteger(0); volatile ResourceCallback callback; @Override public boolean isIdleNow() { return counter.get() == 0; } @Override public void registerIdleTransitionCallback( ResourceCallback callback) { this.callback = callback; } ※ Google's Maven Repository h4ps://goo.gl/aMUS5n   
    
    
      
36. CountingIdlingResource # 36 public void increment() { counter.getAndIncrement(); } public void decrement() { int count = counter.decrementAndGet(); if (count == 0 && null != callback) { // 
    0  ! callback.onTransitionToIdle(); } } } ※ Google's Maven Repository h4ps://goo.gl/aMUS5n 
    
    
      "
37. E : 1. E: CountingIdlingResource 2. CountingIdlingResource p 
        3. E p IdlingResource p 4 . 37
38. RxJava2 API RxJavaPlugins setScheduleHandler( Function<? super Runnable, ? extends Runnable>) :  & $  ( #' 
     )! %"  38
39. RxJava2
      API 39 RxJavaPlugins .setScheduleHandler(oldAction ->{ Log.d(TAG,"
      "); return () -> { Log.d(TAG,""); oldAction.run(); Log.d(TAG,""); }; }); p
      API    
40. setScheduleHandler() 2 . .CountingIdlingResource
     2 .CountingIdlingResource  2 40 1 ⇔ 0
41.  
     41 //  private CountingIdlingResource resource = new CountingIdlingResource("Rx"); private IdlingRegistry registry = IdlingRegistry.getInstance();
42. 
    42 @Before public void setUp() { RxJavaPlugins.setScheduleHandler( oldAction -> () -> { try { resource.increment(); oldAction.run(); } finally { resource.decrement(); } }); registry.register(resource); }   
    
43. 
     43 @After public void tearDown() { registry.unregister(resource); RxJavaPlugins.reset(); }
44. : A RxJava
     A) 44 // ( // A ) ) @Rule public ActivityTestRule<MyActivity> activityRule = new ActivityTestRule<>( MyActivity.class, false, false); @Before public void setUp() { ... // A) registry.register(resource); activityRule.launchActivity(null); }
45. : / 3 45 RxView.clicks(button) .debounce(3, TimeUnits.SECONDS) .subscribe(v -> textView.setText("OK")); 3
    ! OK      
46. 
       :  RxJava Espresso 
     in Rx Ja Night Vol.2 h7ps://goo.gl/GBG8r1 46
47. : 1. : CountingIdlingResource 2. CountingIdlingResource p EJ 3.
     p . IdlingResource p R 4 47
48. idling-concurrent
      (β ) com.android.support.test.espresso.idling: idling-concurrent:3.0.1 pIdlingThreadPoolExecutor pThreadPoolExecutor IdlingResource( pThreadPoolExecutor new  IdlingThreadPoolExecutor new register unregister ) 48 Espresso IdlingResource(
49. idling-concurrent
     (β ) com.android.support.test.espresso.idling: idling-concurrent:3.0.1 pIdlingScheduledThreadPoolExecutor pScheduledThreadPoolExecutor IdlingResource  p
     49 Espresso IdlingResource 
50. Espresso
    IdlingResource  IdlingThreadPoolExecutor
     pOkH3p   50 OkHttpClient okHttpClient = new OkHttpClient.Builder() .dispatcher( new Dispatcher( new IdlingThreadPoolExecutor( "OkHttp", ...))) .build();
51. Espresso!$ IdlingResource' IdlingThreadPoolExecutor
     pOkH3p %#  51 OkHttpClient okHttpClient = new OkHttpClient.Builder() .dispatcher( new Dispatcher( new IdlingThreadPoolExecutor( "OkHttp", ...))) .build(); OkHttp ThreadPoolExecutor (Dispatcher. executorService()
    "()  
     
    &
     h3ps://goo.gl/UVdQ9B "(
52. idling-net
      (β ) com.android.support.test.espresso.idling: idling-net:3.0.1 pUriIdlingResource pWebView/ View/I p /  p / beginLoad(uri) endLoad(uri) 52 Espresso IdlingResource
53. UriIdlingResource! 53 Client GET A <img src="B"> ... <img src="C"> GET B and C 1 
     2 
     
         
         
54. 
    
    
      pRxIdler https://github.com/square/RxIdler pRxJava!   p "API () 54
55. 
    
    
    $ pOkH$p Idling Resource h$ps://github.com/JakeWharton/okh$p-idling-resource pOkH$p '#%  pRetrofit+RxJava
    !   p Issue #10 & " h$ps://github.com/JakeWharton/okh$p-idling-resource/issues/10 55
56. R : E 1. : CountingIdlingResource 2. CountingIdlingResource p 3. p J IdlingResource p 
       56
57. 0# '... pIdlingResource "(: 
     pIdlingResource .*/&-: 
     p
     ,$ 
    ) +  57    (IdlingResource
     /%! )
58. #&*. ! https://goo.gl/w15nur pIdlingResource ': 
     pIdlingResource -)/%,: 
     p
     +"
     ( $  58
59. 1 2$("   pIdlingResource *:  pIdlingResource /-/&.:  
    p
    # /- + pIdlingResource  p0!)  pEspresso',API 
    IdlingResource  /- % 59
60.   +*  p'$.-#)implementation /( com.android.support.test.espresso: espresso-idling-resource:3.0.1 p, 3  (Espresso"%,
    !&) pIdlingRegistry pIdlingResource pCountingIdlingResource 60
61.  p CountingIdlingResource/EF =, p$<*/E20%A. p 72?
    RxJavaC(381> & )-H@ p GIdlingResource/EH@ p IdlingResource+0#;6'4  :9 p"# !;6D5B 61
62.   1. Espresso   2. Espresso  3.     4. " #! 5. sleep() 
     62
63. IdlingResource ) ) IdlingResource
     ⭕) ❌ ❌ E ( ( ❌ 63
64. IdlingResource(2    
     p%+0 $ 4,   &. (RxJava!#*'/ ) p31API" "#-)
      &. 64
65. IdlingResource UI Automator
     pSelenium 5 API View 1 65 // "OK" // assertThat( uiDevice.wait( Until.hasObject(By.text("OK")), 5000L), is(true));
66. UI Automator
     p   com.android.support.test.uiautomator: uiautomator-v18:2.1.3 p @Before 66 private UiDevice uiDevice; @Before public void setUp() throws Exception { uiDevice = UiDevice.getInstance( InstrumentationRegistry .getInstrumentation()); }
67. UI Automator #
     p $ )uiDevice.wait() # p Until   %"!& pfindObject() pfindObjects() pgone() phasObject() 67 uiDevice.wait(' %",  ()
68. UI Automator: Tips 68 /** I */ String toResName(int resId) { return InstrumentationRegistry .getTargetContext() .getResources() .getResourceName(resId); } 
    ID(int)UI   p UI Automator D p ID I
69. UI Automator: Tips 69 // R.id.star // 5 assertThat( uiDevice.wait(Until.hasObject( By.res(toResName(R.id.star))), 5000L), is(true));
70. UI Automator: Tips 70 // R.id.text // " UiObject2 textView = uiDevice.wait(Until.findObject( By.res(toResName(R.id.text))), 5000L); assertThat(textView.wait( Until.textEquals("OK"), 5000L), is(true));  AND UI  
    p UiObject2 wait
71.  pIdlingResource#* ! 
     p),"%' p   (   UI AutomatorAPI&+$ 71
72. URL p Kenta Kase RxJava  Espresso  in DroidKaigi Prelude https://goo.gl/zUQEFi p Iñaki VillarEspresso, Beyond the basicsin 360|AnDev 2017 https://goo.gl/FG7sLf p Espresso 3.0.1
    
     p https://goo.gl/VidZGa (espresso-core) p https://goo.gl/aMUS5n (espresso-idling-resource) p  Espresso Idling Resources https://goo.gl/PGzjWe 72
73. &!URL ($,) p  RxJava-( ) Espresso 
    " in Rx Ja Night Vol.2 h;ps://goo.gl/GBG8r1 p %. Espresso
    +'*"  in DroidKaigi 2017 h;ps://goo.gl/D73jBN p % UI Automator# in DroidKaigi 2016 h;ps://goo.gl/NQV8GP 73
74.  Espresso UI'$ !  # p $" pIdlingResource(
     p)&IdlingResource(*% p+ IdlingResource 
     $ 74
75.  Espresso         75