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Espresso
Android
2019.02.07
(sumio_tym)
DroidKaigi 2019 @ Day1 Room2 12:50-
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$
p : # (TOYAMA Sumio)
@sumio_tym (Twitter) / @sumio (GitHub)
p : DeNA SWET
(Software Engineer in Test)
p :
p : Android
"!
https://peaks.cc/sumio_tym/android_testing
2
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%
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Espresso(
Android
) "*!
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Kotlin&
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+#&
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%*
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p Espresso
p "! : Android Sunflower
p Espresso Test Recorder)
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p PageObject""
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: Espresso
p Android'+
UI
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p ATSL (Android Testing Support Library)AndroidX Test
#
p % -$
p Espresso Test Recorder)
p
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p *
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()
() This logo image is reproduced from work created and shared by the Android Open Source Project
(https://developer.android.com/license) and used according to terms described in the Creative Commons 2.5
Attribution License (http://creativecommons.org/licenses/by/2.5/).
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: Espresso API
Espresso OK
perform()check()%#
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onView(ViewMatcher).perform(ViewAction)
.check(ViewAssertion)
ViewMatcherViewViewAction
→
ViewViewAssertion$
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: Espresso API
Espresso!OK
$API (%"
https://d.android.com/training/testing/espresso/cheat-sheet
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onView(ViewMatcher).perform(ViewAction)
.check(ViewAssertion)
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: AndroidX
AndroidX = Support Library
+ Android Testing Support Library
+ Jetpack components
https://d.android.com/jetpack/androidx/
p androidx.*
p
p Android Studio
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: AAC (Android Architecture Components)
%&" "
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https://d.android.com/topic/libraries/architecture/
p 2018 Android Jetpack
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pViewModel
pLiveData
pRoom
pNavigation
pPager
pWorkManager...
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p Espresso
p CN62I?H$-AMO95
p API#%!%1J
p AndroidX
p D/
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p E:=),@K<.*'.%L
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%*
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p PageObject""
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:
p Android Studio 3.3
p
p Use AndroidX artifacts
p (LanguageKotlin)
13
AndroidX
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:
p Android Studio
RefactorMigrate to AndroidX...
14
AndroidX
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build.gradle
15
android {
...
testInstrumentationRunner
"androidx.test.runner.AndroidJUnitRunner"
}
dependencies {
...
androidTestImplementation
'androidx.test:runner:...'
androidTestImplementation
'androidx.test.espresso:espresso-core:...'
AndroidX
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16
Latest Stable
Version()
androidx.test:runner 1.1.1
androidx.test:rules 1.1.1
androidx.test.ext:junit-ktx 1.1.0
androidx.test:core-ktx 1.1.0
androidx.test.espresso:espresso-core 3.1.1
androidx.test.espresso:espresso-contrib 3.1.1
()2019127
ActivityScenario ()
AndroidJUnit4()
ActivityScenarioRule ()
AndroidX
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KotlinjvmTarget 1.8
: androidx.test.ext:junit-ktxJVM 1.7
17
tasks.withType(org.jetbrains.kotlin.gradle.tasks.
KotlinCompile).all {
sourceCompatibility = JavaVersion.VERSION_1_8
targetCompatibility = JavaVersion.VERSION_1_8
kotlinOptions {
jvmTarget = '1.8'
}
}
AndroidX
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KotlinjvmTarget 1.8
activityScenarioRule(intent: Intent? = null)
18
AndroidX
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p )(AndroidX'Espresso
p &$" Use AndroidX artifacts
p .+ Migrate to AndroidX...
p - ,
%
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p androidx.test.ext:junit-ktx
p androidx.test:core-ktx
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%*
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p "! : Android Sunflower
p Espresso Test Recorder)
p PageObject""
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p AAC-$ ("
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,%*%): Android Sunflower
p Android Jetpack (≒AAC) 2
,%*%)
https://github.com/googlesamples/android-sunflower
p %+(&,/3Kotlin6-
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" #1
(04
)
.5 ($Android Sunflower%) ),'!#78
Copyright 2018 Google, Inc. Licensed under the Apache License, Version 2.0.
Select text used for describing the plants are used from Wikipedia via CC BY-SA 3.0 US.
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Sunflower
My gardenPlant list
22
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Sunflower
Plant list → Plant details
23
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Sunflower
Plant details
FAB → My garden
24
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%*
p #'&+
p Espresso
p "! : Android Sunflower
p Espresso Test Recorder)
p PageObject""
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p AAC-$ ("
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Kotlin
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AndroidX
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Espresso Test Recorder: #
p Android Studio 3.2
(AndroidXKotlin!)
p "
p adb$Android/
26
AndroidX
Kotlin
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Espresso Test Recorder:
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KotlinAndroidX
p
p
AndroidX
Kotlin
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Espresso Test Recorder: "&#
p /adb'!
p
%
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p RunRecord Espresso Test
p
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p Record Your Test
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Kotlin
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Espresso Test Recorder: '
"
p !
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p 'Record Your Test %
($&
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#()
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AndroidX
Kotlin
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Espresso Test Recorder: Assertion
p Record Your Test
Add Assertion
30
AndroidX
Kotlin
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Espresso Test Recorder: Assertion
p
31
AndroidX
Kotlin
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Espresso Test Recorder: Assertion
p
p Edit assertionSave Assertion
32
AndroidX
Kotlin
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Espresso Test Recorder:
p Record Your Test OK
p Specify a test class for your test
p Test class name: ()
p Test class language: Kotlin
33
AndroidX
Kotlin
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Espresso Test Recorder: ATSL or AndroidX Test?
Espresso Test Recorder
()
AndroidX
AndroidX Test
ATSL (Android Testing Support Library)
AndroidX
34
AndroidX
Kotlin
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Espresso Test Recorder:
35
Espresso Test Recorder
p AndroidJUnit4deprecated
p ActivityTestRuledeprecated
() This text is reproduced from work created and shared by the Android Open Source Project
(https://developer.android.com/license) and used according to terms described in Apache License, Version 2.0.
URL: https://d.android.com/reference/androidx/test/ext/junit/rules/ActivityScenarioRule
()
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Espresso Test Recorder:
deprecatedAndroidJUnit4 (
import ( )
36
import androidx.test.runner.AndroidJUnit4
import androidx.test.ext.junit.runners.AndroidJUnit4
AndroidX
Kotlin
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Espresso Test Recorder:
deprecatedAndroidJUnit4
import Show Intention Actions
(Option+Enter)
37
AndroidX
Kotlin
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Espresso Test Recorder:
ActivityTestRule
ActivityScenarioRule
38
AndroidX
Kotlin
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Espresso Test Recorder:
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@Rule
@JvmField
var mActivityTestRule =
ActivityTestRule(GardenActivity::class.java)
@get:Rule
val activityScenarioRule =
activityScenarioRule()
Java getter
API: activityScenarioRule
read-only
AndroidX
Kotlin
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activityScenarioRule
40
@get:Rule
val activityScenarioRule =
ActivityScenarioRule(GardenActivity::class.java)
@get:Rule
val activityScenarioRule =
activityScenarioRule()
Kotlin
jvmTarget
1.8
AndroidX
Kotlin
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ActivityTestRule vs ActivityScenarioRule
Activity
p ActivityTestRule
p ActivityScenarioRule
41
@get:Rule
val activityTestRule =
ActivityTestRule(GardenActivity::class.java)
@get:Rule
val activityScenarioRule =
activityScenarioRule()
AndroidX
Kotlin
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ActivityTestRule vs ActivityScenarioRule
Activity
p ActivityTestRule
42
@get:Rule
val activityTestRule =
ActivityTestRule(GardenActivity::class.java,
false, false)
...
// Activity
activityTestRule.launchActivity(null)
AndroidX
Kotlin
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ActivityTestRule vs ActivityScenarioRule
Activity
p ActivityScenario (ActivityScenarioRule)
43
// Rule
// Activity
launchActivity(null).use {
...
//
ActivityRESUMED
}
AndroidX
Kotlin
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ActivityTestRule vs ActivityScenarioRule
ActivityScenario Activity
/
44
// Activity
launchActivity(null)
.use { scenario ->
scenario.moveToState(State.STARTED)
}
AndroidX
Kotlin
scenario.onActivity { ... }
(Espresso)
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p Recorder"%*#
(
)
p "%') Test class languageKotlinOK
p AndroidX&AndroidX
Test
p 2!
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p AndroidJUnit4 (
p ActivityTestRule → ActivityScenario / ActivityScenarioRule
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AndroidX
Kotlin
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%*
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p PageObject""
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Espresso Test Recorder!
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Recorder
"
p %
p $
Kotlin
PageObject
(#)
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PageObject$$
2'(,4
https://github.com/SeleniumHQ/selenium/wiki/PageObjects
p %6#(Page
)&5
p Page#:
!
p
"$(9/) or )0.+*-
p !8
7 Page
p 3Page#!1
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Kotlin
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Sunflower PageObject
MyGardenPage
p //
goPlantList(): PlantListPage
p // plantName
//
assertPlanted(plantName: String):
MyGardenPage
49
Kotlin
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Sunflower PageObject
PlantListPage
p // plantName
//
showPlantDetail(plantName: String):
PlantDetailPage
p //
goBackMyGarden(): MyGardenPage
50
Kotlin
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Sunflower PageObject
PlantDetailPage
p // ) )(
goBackPlantList(): PlantListPage
p /
addToMyGarden(): PlantDetailPage
51
Kotlin
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&0: (. PageObject)/
p % $#!#
https://github.com/sumio/android-sunflower-for-droidkaigi2019
p , "%*
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Kotlin
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#3: *0
PageObject
,1
*0
( !&)
(: droidkaigi/step0
1. PlantList
.$
2. "Avocado" " (PlantDetail
.$ )
3. FAB2My Garden
/'
4. PlantDetail
4
5. My Garden
4
6. "Avocado"%+-)
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Kotlin
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54
Kotlin
:
PageObject
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:
PageObject
Android Studio
p Move Line Up/Down
p RefactorExtractMethod
p RefactorExtractVariable
55
Opt + Shift + ↑/↓
Opt + Command + M
Opt + Command + V
macOS
Kotlin
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: PageObject
! Android Studio
p RefactorInline
p RefactorMove (
)
p Show Intention Actions
56
macOS
F6
Opt + Enter
Opt + Command + N
Kotlin
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57
Step1
Step2-4 Page
( )
Step5 return value
PageObject
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58
Step1
Step2-4
Page
( )
Step5
return value
PageObject
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Step1
Page
59
public
Extract Method
Opt + Command + M
Kotlin
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Step1
: droidkaigi/step1
60
Kotlin
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61
Step1
Step2-4
Page
( )
Step5
return value
PageObject
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Step2
62
Move Line Down
Opt + Shift + ↓
Kotlin
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Step2
: droidkaigi/step2
63
Kotlin
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Step3
64
RefactorMove
F6
Kotlin
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Step3
!
!
65
Move
Page
Kotlin
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Step3
66
childAtPosition (Recorder) PageUtils.kt
goPlantList MyGardenPage.kt
assertPlanted
showPlantDetail PlantListPage.kt
goBackMyGarden
goBackPlantList PlantDetailPage.kt
addToMyGarden
Kotlin
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Step3
67
: droidkaigi/step3
Move
()
Kotlin
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Step4 object
68
object
Kotlin
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Step4 object
69
Show Intention Actions
Show Intention Actions
Opt + Enter
Kotlin
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Step4 object
70
: droidkaigi/step4
Page
Kotlin
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71
Step1
Step2-4
Page
( )
Step5
return value
PageObject
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Step5
return
72
PageObject return
Show Intention Actions
Opt + Enter
Kotlin
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Step5
return
73
: droidkaigi/step5
return type
Kotlin
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74
Step1
Step2-4
Page
( )
Step5
return value
PageObject
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75
Kotlin
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76
Kotlin
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77
Page
OK
Kotlin
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:
p MyGardenPage.assertPlanted()
( '!'#
&
p "%$: droidkaigi/extra
78
Kotlin
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p Espresso Test Recorder
PageObject
p Android Studio
()
p Kotlin
Move
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%*
p #'&+
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p "! : Android Sunflower
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% 5'#UI13
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p ;)"/(ID
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AAC !
p Room:
p LiveData RxJava
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p Pager:
p LivePagedListBuilderRxPagedListBuilder
p WorkManager:
82
ArchTaskExecutor
Executors.
newFixedThreadPool()
AAC
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AAC !
p Room:
p LiveData RxJava
!
p Pager:
p LivePagedListBuilderRxPagedListBuilder
p WorkManager:
83
ArchTaskExecutor
Executors.
newFixedThreadPool()
AAC
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ArchTaskExecutor
84
p AAC
p
CountingTaskExecutorRule
androidx.arch.core:core-testing:2.0.0
AAC
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ArchTaskExecutor:
85
AAC
@get:Rule
val countingRule = CountingTaskExecutorRule()
@Test
fun myTest() {
onView(...).perform(...)
// AAC
countingRule..drainTasks(1, TimeUnit.MINUTES)
onView(...).perform(...)
...
}
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ArchTaskExecutor: G S
86
p TaskExecutorWithIdlingResourceRule
p B / .
/
AAC
@get:Rule
val executorRule =
TaskExecutorWithIdlingResourceRule()
Rule L: OK
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AAC !
p Room:
p LiveData RxJava
!
p Pager:
p LivePagedListBuilderRxPagedListBuilder
p WorkManager:
87
ArchTaskExecutor
Executors.
newFixedThreadPool()
AAC
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ArchTaskExecutor
:
88
ThreadPoolExecutor
p WorkManager
import androidx.work.Configuration
...
val executor = ...
val configuration = Configuration.Builder()
.setExecutor(executor)
.build()
WorkManager.initialize(context, configuration)
AAC
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ArchTaskExecutor: # $'
!
89
IdlingThreadPoolExecutor"%
androidx.test.espresso.idling:idling-concurrent:3.1.1
val executor = IdlingThreadPoolExecutor(...)
val configuration = Configuration.Builder()
.setExecutor(executor)
.build()
WorkManager.initialize(context, configuration)
AAC
&
( https://bit.ly/2Biu8QJ )
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ArchTaskExecutor: "
90
(: CoroutineWorker)
asCoroutineDispatcher()
class MyWorker(...): CoroutineWorker(...) {
override val coroutineContext:
CoroutineDispatcher
get() {
val executor = IdlingThreadPoolExecutor(...)
return executor.asCoroutineDispatcher()
}
...
AAC
CoroutineWorker
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p AAC(!%
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p ArchTaskExecutor&
p $#Executor&
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$#
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p EspressoAndroidXKotlin
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p PageObject
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p AAC
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URL
p AndroidX Test
https://github.com/android/android-test
p Yuki AnzaiAndroidX Testin Android Dev Summit
2018
https://speakerdeck.com/yanzm/androidx-test
p AndroidX Test
https://developer.android.com/jetpack/androidx/releases/test
95
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"URL (
(
+)
p !) Espresso
%
in DroidKaigi 2017
https://droidkaigi.github.io/2017/timetable.html#session-26
p Espresso
$
'in
DroidKaigi 2018
https://droidkaigi.jp/2018/timetable?session=16928
p *Android(+)
https://peaks.cc/sumio_tym/android_testing
96
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97
Espresso