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-
   

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2. /3-
   p'&: " 2 (TOYAMA Sumio)
   @sumio_tym (Twi0er) / @sumio (GitHub)
   p#0: DeNA SWET
   
   (Sop$(:
   p :
   pSTAR ( ,.)
   p@IT1%*)
   (UI Automator / Appium+!)
   2
   

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3. -
   
   pAndroidUI #Espresso
   0/7'683%
   
   9 1)
   p.5,(1)
   3
   0/7'"$2
   Espresso !
   sleep()4+&*
   

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4. 
   !
   1. Espresso
   
   2. Espresso#
   3.
   "
   4. ($
   )%
   5. sleep() '
   &
   4
   

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5. 
   1. Espresso
   2. Espresso!
   3.
   
   4. &"'#
   5. sleep()%$
   5
   

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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
   p69+",
   "4
   p.5!*1&
   
   6
   https://developer.android.com/training/testing/espresso/index.html -'
   

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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
   

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8. Espresso
   
   
   (#$"OFF)
   p
   
   p
   p % !
   8
   

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9. Espresso
   psrc/androidTest/java
   pAndroid Test Support Library
   
   9
   @RunWith(AndroidJUnit4.class)
   public class MyEspressoTest {
   @Rule
   public ActivityTestRule<...>
   activityActivityTestRule = ...;
   ...
   }
   

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10. Espresso API
    OK
    perform()check()
    10
    onView(ViewMatcher)
    .perform(ViewAction)
    .check(ViewAssertion);
    p ViewMatcher View
    p ViewAction
    p ViewViewAssertion
    
    
    

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11. Espresso API
    API
    https://goo.gl/hx6YPo
    11
    onView(ViewMatcher)
    .perform(ViewAction)
    .check(ViewAssertion);
    p ViewMatcher
    View
    
    p ViewAction
    p ViewViewAssertion
    
    

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12. 
    
    Espresso
    
    p(*
    p+, '
    p!#"& $% )
    p
    
    p
    '
    pAPI
    12
    

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13. 
    
    Espresso
    
    p
    p !
    p
    p
    
    p
    
    pAPI
    13
    !
    

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14. 
    1. Espresso
    2. Espresso
    
    3.
    
    4. " #
    5. sleep()!
    14
    

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15. !'")(.
    
    +$ &/0
    - 3,* (https://goo.gl/poLgkZ)
    p
    pAsyncTask
    p%2IdlingResource
    &(#1)
    15
    

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16. 
    
    
    pHandler
    p Thread Executor
    p
    p
    16
    H Android
    J
    

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17. ',(.-4
    1)+ $56
    3820 (https://goo.gl/poLgkZ)
    p"&%
    pAsyncTask!#& %
    p
    IdlingResource
    
    17
    AsyncTask1/
    *7
    
    Espresso
    

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18. 
    pEspresso!&"('+/
    AsyncTask,
    pOkHttpRxJava!&"(#.)
    p
    IdlingResource$0
    
    !&"(-%#.*
    
    18
    

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19. 
    1. Espresso
    2. Espresso
    
    3.
    
    4.
    5. sleep()
    19
    

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20. .2 /
    "$
    !
    / 2
    pandroid.support.test.espresso
    pIdlingResource
    pIdlingRegistry .2
    #
    1. IdlingResource '
    )( IdlingRegistry &%
    20
    

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21. IdlingResource
    21
    public interface IdlingResource {
    public String getName();
    public boolean isIdleNow();
    // #
    %&
    ?
    ("* +
    !
    IdlingResource!
    
    $),'
    "
    

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22. IdlingResource
    22
    //
    public void
    registerIdleTransitionCallback(
    ResourceCallback callback);
    public interface ResourceCallback {
    public void onTransitionToIdle();
    }
    }
    

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23. IdlingResource
    23
    //
    public void
    registerIdleTransitionCallback(
    ResourceCallback callback);
    public interface ResourceCallback {
    public void onTransitionToIdle();
    }
    }
    !"
    
    callback.onTransitionToIdle()
    ( )#!!
    

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24. IdlingResource
    24
    Espresso
    IdlingResource
    onView()...
    isIdleNow()
    UI
    
    
    onTransitionToIdle()
    registerIdleTransitionCallback(this)
    false
    
    
    UI
    

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25. IdlingResource
    25
    private ResourceCallback callback;
    private boolean idle = false;
    public void
    registerIdleTransitionCallback(
    ResourceCallback callback) {
    this.callback = callback
    }
    //
    

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26. IdlingResource
    26
    // private ResourceCallback callback;
    // private boolean idle = false;
    public void backgroundWorkDone() {
    idle = true;
    callback.onTransitionToIdle();
    }
    //
    
    
    
    
    

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27. IdlingResource
    27
    // private ResourceCallback callback;
    // private boolean idle = false;
    public boolean isIdleNow() {
    if (callback != null && idle) {
    callback.onTransitionToIdle();
    }
    return idle;
    }
    
    
    
    

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28. IdlingRegistry
    IdlingResource
    /
    p
    
    
    
    
    28
    private IdlingRegistry reg;
    ...
    reg = IdlingRegistry.getInstance();
    

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29. IdlingRegistry
    IdlingResource'%#/$"
    29
    pIdlingResource
    ( !& )
    reg.register(idlingResource);
    pIdlingResource
    
    (%#
    )
    reg.unregister(idlingResource);
    

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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
    

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31. 
    p&+',/*(3-
    
    IdlingResource% #
    )7
    1
    p3 $!")7
    
    p
    
    )78
    pIdlingResource)7
    IdlingRegistry64/.5
    
    p02
    64
    
    31
    

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32. 
    
    1. Espresso
    
    2. Espresso"
    3.
    !
    4.
    5. sleep() $
    #
    32
    

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33. :
    1. : CountingIdlingResource
    2. CountingIdlingResource
    p EJ
    3.
    p . IdlingResource
    p R
    4
    33
    

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34. CountingIdlingResource%$
    p'# !(
    
    ")
    pincrement(): ")
    
    ('# & )
    pdecrement(): ")
    ('#!(& )
    34
    
    0
    

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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
    
    
    

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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
    "
    

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37. E :
    1. E: CountingIdlingResource
    2. CountingIdlingResource
    p
    
    3. E
    p IdlingResource
    p 4
    .
    37
    

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38. RxJava2 API
    RxJavaPlugins
    setScheduleHandler(
    Function super Runnable,
    ? extends Runnable>)
    :
    &$
    ( #'
    
    )!%"
    
    38
    

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39. RxJava2 API
    39
    RxJavaPlugins
    .setScheduleHandler(oldAction ->{
    Log.d(TAG,"
    ");
    return () -> {
    Log.d(TAG,"");
    oldAction.run();
    Log.d(TAG,"");
    };
    });
    p API
    
    

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40. setScheduleHandler()
    2 .
    
    .CountingIdlingResource
    2
    
    .CountingIdlingResource
    2
    40
    1
    ⇔
    0
    

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41. 
    41
    //
    
    private CountingIdlingResource resource
    = new CountingIdlingResource("Rx");
    private IdlingRegistry registry
    = IdlingRegistry.getInstance();
    

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42. 
    42
    @Before public void setUp() {
    RxJavaPlugins.setScheduleHandler(
    oldAction -> () -> {
    try {
    resource.increment();
    oldAction.run();
    } finally {
    resource.decrement();
    }
    });
    registry.register(resource);
    }
    
    
    
    
    
    

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43. 
    43
    @After public void tearDown() {
    registry.unregister(resource);
    RxJavaPlugins.reset();
    }
    

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44. : A
    RxJava A)
    44
    // (
    // A ) )
    @Rule public
    ActivityTestRule activityRule
    = new ActivityTestRule<>(
    MyActivity.class, false, false);
    @Before public void setUp() {
    ... // A)
    registry.register(resource);
    activityRule.launchActivity(null); }
    

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45. :
    / 3
    45
    RxView.clicks(button)
    .debounce(3, TimeUnits.SECONDS)
    .subscribe(v -> textView.setText("OK"));
    3
    ! OK
    
    
    
    
    

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46. 
    :
    RxJava Espresso
    
    in Rx Ja Night Vol.2
    h7ps://goo.gl/GBG8r1
    46
    

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47. :
    1. : CountingIdlingResource
    2. CountingIdlingResource
    p EJ
    3.
    p . IdlingResource
    p R
    4
    47
    

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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(
    

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49. idling-concurrent
    (β )
    com.android.support.test.espresso.idling:
    idling-concurrent:3.0.1
    pIdlingScheduledThreadPoolExecutor
    pScheduledThreadPoolExecutor
    IdlingResource
    
    p
    49
    Espresso IdlingResource
    
    

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50. EspressoIdlingResource
    IdlingThreadPoolExecutor
    pOkH3p
    
    50
    OkHttpClient okHttpClient =
    new OkHttpClient.Builder()
    .dispatcher(
    new Dispatcher(
    new IdlingThreadPoolExecutor(
    "OkHttp", ...)))
    .build();
    

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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 "(
    

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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
    

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53. UriIdlingResource!
    53
    Client
    GET A
    ...
    
    GET B and C
    1
    2
    
    
    
    
    
    
    
    
    

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54. 
    pRxIdler
    https://github.com/square/RxIdler
    pRxJava!
    
    p "API
    ()
    54
    

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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
    

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56. R : E
    1. : CountingIdlingResource
    2. CountingIdlingResource
    p
    3.
    p J IdlingResource
    p
    
    
    56
    

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57. 0#'...
    pIdlingResource"(:
    pIdlingResource.*/&-:
    p
    ,$ )
    +
    
    57
    
    
    (IdlingResource
    /%!
    )
    

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58. #&*.
    !
    https://goo.gl/w15nur
    pIdlingResource
    ':
    pIdlingResource
    -)/%,:
    p +"
    ( $
    58
    

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59. 12$("
    
    pIdlingResource *:
    pIdlingResource /-/&.:
    
    p #
    /-
    +
    pIdlingResource
    p0!)
    pEspresso',API IdlingResource
    /- %
    59
    

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60. +*
    p'$.-#)implementation
    /(
    com.android.support.test.espresso:
    espresso-idling-resource:3.0.1
    p,
    3
    (Espresso"%,!&)
    pIdlingRegistry
    pIdlingResource
    pCountingIdlingResource
    60
    

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61. 
    p CountingIdlingResource/EF
    =,
    
    p$<*/E20%A.
    p 72? RxJavaC(381>&
    )-H@
    
    p GIdlingResource/EH@
    
    p IdlingResource+0#;6'4
    :9
    
    p"# !;6D5B
    61
    

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62. 
    1. Espresso
    2. Espresso
    3.
    
    4. " #!
    5. sleep()
    
    62
    

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63. IdlingResource ) )
    IdlingResource
    ⭕)
    ❌
    ❌ E
    ( (
    ❌
    63
    

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64. IdlingResource(2
    
    
    
    p%+0$4,
    &.
    (RxJava!#*'/ )
    p31API" "#-)
    &.
    64
    

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65. IdlingResource
    UI Automator
    pSelenium 5 API
    View
    1
    65
    // "OK"
    //
    assertThat(
    uiDevice.wait(
    Until.hasObject(By.text("OK")),
    5000L), is(true));
    

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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());
    }
    

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67. UI Automator
    #
    p $ )uiDevice.wait()#
    p Until
    
    %"!&
    pfindObject()
    pfindObjects()
    pgone()
    phasObject()
    67
    uiDevice.wait('%",
    ()
    

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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
    

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69. UI Automator: Tips
    69
    // R.id.star
    // 5
    assertThat(
    uiDevice.wait(Until.hasObject(
    By.res(toResName(R.id.star))),
    5000L),
    is(true));
    

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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
    

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71. 
    pIdlingResource#*
    !
    p),"%'
    p (
    
    UI AutomatorAPI&+$
    71
    

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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
    

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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
    

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74. 
    Espresso
    UI'$
    !#
    p
    $"
    pIdlingResource(
    p)&IdlingResource(*%
    p+ IdlingResource
    $
    74
    

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75. 
    Espresso
    
    
    
    75
    
    
    

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