Build Testble Apps for Androidの紹介 / introduce-build-testable-apps-for-android

DeNA.apk#1 【Google I/O 報告会】の発表資料です
https://dena.connpass.com/event/128184/

Transcript

1. Build Testable Apps
   for Androidͷ঺հ
   SWETάϧʔϓ Nozomi Takuma
   

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2. ࣗݾ঺հ
   Nozomi Takuma
   DeNAͷSWETάϧʔϓ
   Androidͱςετ͕޷͖
   

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3. Session Summary
   AndroidΞϓϦʹ͓͚Δࣗಈςετͷ
   ઓུ
   TestableͳΞϓϦͷߏ੒
   Unit/Integra=on/E2Eςετͷ࣮૷
   

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4. ࣗಈςετͷઓུ
   Scope/Speed/Fidelityͷόϥϯε
   ςετϐϥϛου
   

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5. ࣗಈςετͷઓུ
   

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6. TODOΞϓϦΛྫʹ
   Cri=cal User Journey
   λεΫΛ࡞੒͢Δ
   λεΫͷਐḿΛ֬ೝ͢Δ
   

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7. Monolithic Architecture
   

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8. Ϋϥε͝ͱΛ੾Γ཭͢ͷ
   ͕೉͍͠
   είʔϓͷখ͍͞ςετ
   ͕Ͱ͖ͣɺE2Eςετ͕

   ૿͍͑ͯ͘
   Monolithic Architecture
   

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9. Layered Architecture
   

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10. Unitςετ͸໰୊ͳ͠
    ࠷ऴతʹ֤Layer͕Monoli=cʹͳΓ

    ΠϯςάϨʔγϣϯςετΑΓ΋

    E2Eςετ͕૿͍͑ͯ͘
    Layered Architecture
    

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11. Modular Architecture
    

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12. Architecture Component
    Naviga=on
    Data Binding
    Live Data
    Room
    View
    ViewModel
    Model
    

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13. શମਤ
    

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14. TDD(TDD&ATDDͬΆ͍?)
    

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15. TDD(TDD&ATDDͬΆ͍?)
    ͱ͍͏લஔ͖͕͋Γ

    E2Eςετͷઆ໌͔Β͸͡·Γ·͢
    

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16. E2E Test
    

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17. Happy PathΛ

    ςετ
    E2E Test Scope
    

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18. E2E Test Code
    @Test
    fun createTask() {
    // start up Tasks screen
    val ac=vityScenario = Ac=vityScenario.launch(TasksAc=vity::class.java)
    dataBindingIdlingResource.monitorAc=vity(ac=vityScenario)
    // Click on the "+" bu\on, add details, and save
    onView(withId(R.id.fab_add_task)).perform(click())
    onView(withId(R.id.add_task_=tle)).perform(typeText("=tle"))
    onView(withId(R.id.add_task_descrip=on)).perform(typeText("descrip=on"))
    onView(withId(R.id.fab_save_task)).perform(click())
    // Then verify task is displayed on screen
    onView(withText("=tle")).check(matches(isDisplayed()))
    }
    

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19. E2E Test Code
    @Test
    fun createTask() {
    // start up Tasks screen
    val ac=vityScenario = Ac=vityScenario.launch(TasksAc=vity::class.java)
    dataBindingIdlingResource.monitorAc=vity(ac=vityScenario)
    // Click on the "+" bu\on, add details, and save
    onView(withId(R.id.fab_add_task)).perform(click())
    onView(withId(R.id.add_task_=tle)).perform(typeText("=tle"))
    onView(withId(R.id.add_task_descrip=on)).perform(typeText("descrip=on"))
    onView(withId(R.id.fab_save_task)).perform(click())
    // Then verify task is displayed on screen
    onView(withText("=tle")).check(matches(isDisplayed()))
    }
    Ac=vityΛىಈ͠

    ෳ਺ͷFragmentʹ·͕ͨͬͯ
    ϑϩʔΛݕূ
    

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20. Integra=on Test
    

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21. Integra=on Test Scope
    ςετͷείʔϓΛ
    খ͘͢͞Δ
    

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22. Test Double
    ্ʹ͍͘΄Ͳ࣮ࡍͷ

    ৼΔ෣͍ʹۙ͘ͳΔ
    Fidelity
    

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23. AddEditTaskFragmentTest
    VerifyͰ͖ΔΑ͏

    ϞοΫʹஔ͖׵͑
    ࠓճ͸಺෦ʹMapΛ࣋ͭ
    Fakeʹஔ͖׵͑

    

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24. Integra=on Test Code
    @Test
    fun validTask_isSaved() {
    // GIVEN - On the "Add Task" screen.
    val navController = mock(NavController::class.java)
    val bundle = AddEditTaskFragmentArgs(null,
    getApplica=onContext().getString(R.string.add_task)).toBundle()
    val scenario = launchFragmentInContainer(bundle, R.style.AppTheme)
    scenario.onFragment {
    Naviga=on.setViewNavController(it.view!!, navController)
    }

    ..
    }
    FragmentΛىಈ͠

    ϞοΫͷNavControllerΛ

    ౉͢
    

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25. Integra=on Test Code
    @Test
    fun validTask_isSaved() {

    ..
    // WHEN - Valid =tle and descrip=on combina=on and click save
    onView(withId(R.id.add_task_=tle)).perform(replaceText("=tle"))
    onView(withId(R.id.add_task_descrip=on)).perform(replaceText("descrip=on"))
    onView(withId(R.id.fab_save_task)).perform(click())
    ..
    }
    

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26. Integra=on Test Code
    @Test
    fun validTask_isSaved() {
    ..
    // THEN - Verify that the repository saved the task
    val tasks = (repository.getTasksBlocking(true) as Result.Success).data
    assertEquals(tasks.size, 1)
    assertEquals(tasks[0].=tle, "=tle")
    verify(navController).navigate(
    AddEditTaskFragmentDirec=ons
    .ac=onAddEditTaskFragmentToTasksFragment(ADD_EDIT_RESULT_OK))
    }
    Fake͔ΒσʔλΛ
    औಘͯ͠ݕূ

    

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27. Integra=on Test Code
    @Test
    fun validTask_isSaved() {
    ..
    // THEN - Verify that the repository saved the task
    val tasks = (repository.getTasksBlocking(true) as Result.Success).data
    assertEquals(tasks.size, 1)
    assertEquals(tasks[0].=tle, "=tle")
    verify(navController).navigate(
    AddEditTaskFragmentDirec=ons
    .ac=onAddEditTaskFragmentToTasksFragment(ADD_EDIT_RESULT_OK))
    }
    ਖ਼͍͠ύϥϝʔλͰNaviga=on
    Ͱ͖͍ͯΔ͔ݕূ
    

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28. Unit Test
    

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29. Unit Test Summary
    TaskLocalDataStoreTest
    ৄࡉͳ࣮૷ΑΓͲ͏ৼΔ෣͏͔
    DaoΛMockͰ͸ͳ͘Fakeʹͯ͠

    ςετ
    Corou=neͷςετ༻ͷrunBlockingTest
    

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30. Tes=ng Codelab
    ηογϣϯͷ಺༰Λ࣮ࡍʹखΛಈ͔
    ͠ͳ͕ΒֶͿ͜ͱ͕Ͱ͖Δ
    g.co/codelabs/android-tes=ng
    

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31. AndroidX Test
    Local TestͱInstrumenta=on Testͷࠩ෼Λٵऩ͢Δ

    unified API
    ҆ఆੑ΍૬ޓӡ༻ੑͷڧԽ
    Local JVM supportͷڧԽ
    Architecture component support
    

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32. Nitrogen
    Unified APIͰॻ͔ΕͨςετΛ

    ༷ʑͳ؀ڥͰγʔϜϨεʹ

    ࣮ߦͰ͖ΔPlanorm
    

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33. Nitrogen͕ϦϦʔε͞ΕΔ·Ͱ
    android {
    sourceSets {
    String sharedTestDir = 'src/sharedTest/java'
    test {
    java.srcDir sharedTestDir
    }
    androidTest {
    java.srcDir sharedTestDir
    }
    }
    

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34. CodelabͰͷ࢖͍෼͚
    androidTest
    E2E
    sharedTest
    Integra=on Test(FragmentɾRoom·ΘΓ)
    test
    Unit Test
    

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35. Nitrogen EAP
    2019 2Qʹalpha൛ϦϦʔε༧ఆͳͷͰ
    ͦΖͦΖ৮ΕΔΑ͏ʹͳΔͱظ଴
    bit.ly/nitrogen-eap
    

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36. ·ͱΊ
    ࣗಈςετͷઓུͱͦΕΛ࣮ݱ͢ΔArchitectuteͷ঺հ
    CodelabΛ௨ͯ͡खΛಈ͔͠ͳ͕ΒֶͿ͜ͱ͕Ͱ͖Δ
    Unified APIΛ࢖༻ͨ͠γʔϜϨεͳ࣮ߦ(Nitrogen EAP!)
    

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37. Session Info
    h\ps://events.google.com/io/schedule/events/
    7bd73b37-1bca-40b3-b8e9-6efe3a9ac234
    h\ps://www.youtube.com/watch?v=VJi2vmaQe6w
    

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