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Espresso
2018.02.08
(sumio_tym)
DroidKaigi 2018 @ Day1 Room5 15:40-
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/3-
p'&: " 2 (TOYAMA Sumio)
@sumio_tym (Twi0er) / @sumio (GitHub)
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Espresso
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https://d.android.com/training/testing/espresso/index.html
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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"
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Espresso
psrc/androidTest/java
pAndroid Test Support Library
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@RunWith(AndroidJUnit4.class)
public class MyEspressoTest {
@Rule
public ActivityTestRule<...>
activityActivityTestRule = ...;
...
}
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Espresso API
OK
perform()check()
10
onView(ViewMatcher)
.perform(ViewAction)
.check(ViewAssertion);
p ViewMatcher
View
p ViewAction
p ViewViewAssertion
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Espresso API
API
https://goo.gl/hx6YPo
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onView(ViewMatcher)
.perform(ViewAction)
.check(ViewAssertion);
p ViewMatcher
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p ViewAction
p ViewViewAssertion
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Espresso
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pIdlingResource
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IdlingResource
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public interface IdlingResource {
public String getName();
public boolean isIdleNow();
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IdlingResource
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//
public void
registerIdleTransitionCallback(
ResourceCallback callback);
public interface ResourceCallback {
public void onTransitionToIdle();
}
}
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IdlingResource
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//
public void
registerIdleTransitionCallback(
ResourceCallback callback);
public interface ResourceCallback {
public void onTransitionToIdle();
}
}
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callback.onTransitionToIdle()
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IdlingResource
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Espresso
IdlingResource
onView()...
isIdleNow()
UI
onTransitionToIdle()
registerIdleTransitionCallback(this)
false
UI
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IdlingResource
25
private ResourceCallback callback;
private boolean idle = false;
public void
registerIdleTransitionCallback(
ResourceCallback callback) {
this.callback = callback
}
//
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IdlingResource
26
// private ResourceCallback callback;
// private boolean idle = false;
public void backgroundWorkDone() {
idle = true;
callback.onTransitionToIdle();
}
//
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IdlingResource
27
// private ResourceCallback callback;
// private boolean idle = false;
public boolean isIdleNow() {
if (callback != null && idle) {
callback.onTransitionToIdle();
}
return idle;
}
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IdlingRegistry
IdlingResource
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private IdlingRegistry reg;
...
reg = IdlingRegistry.getInstance();
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IdlingRegistry
IdlingResource'%#/$"
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pIdlingResource
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reg.register(idlingResource);
pIdlingResource
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reg.unregister(idlingResource);
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IdlingRegistry I P
pIdlingRegistry: Espresso 3.0
p API:
pEspresso.registerIdlingResources()
pEspresso.unregisterIldingResources()
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:
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CountingIdlingResource
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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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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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E :
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2. CountingIdlingResource
p
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RxJava2 API
RxJavaPlugins
setScheduleHandler(
Function super Runnable,
? extends Runnable>)
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RxJava2
API
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RxJavaPlugins
.setScheduleHandler(oldAction ->{
Log.d(TAG,"
");
return () -> {
Log.d(TAG,"");
oldAction.run();
Log.d(TAG,"");
};
});
p
API
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setScheduleHandler()
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//
private CountingIdlingResource resource
= new CountingIdlingResource("Rx");
private IdlingRegistry registry
= IdlingRegistry.getInstance();
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42
@Before public void setUp() {
RxJavaPlugins.setScheduleHandler(
oldAction -> () -> {
try {
resource.increment();
oldAction.run();
} finally {
resource.decrement();
}
});
registry.register(resource);
}
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43
@After public void tearDown() {
registry.unregister(resource);
RxJavaPlugins.reset();
}
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: A
RxJava A)
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// (
// 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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:
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45
RxView.clicks(button)
.debounce(3, TimeUnits.SECONDS)
.subscribe(v -> textView.setText("OK"));
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:
RxJava Espresso
in Rx Ja Night Vol.2
h7ps://goo.gl/GBG8r1
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:
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2. CountingIdlingResource
p EJ
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p R
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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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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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EspressoIdlingResource
IdlingThreadPoolExecutor
pOkH3p
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OkHttpClient okHttpClient =
new OkHttpClient.Builder()
.dispatcher(
new Dispatcher(
new IdlingThreadPoolExecutor(
"OkHttp", ...)))
.build();
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Espresso!$IdlingResource'
IdlingThreadPoolExecutor
pOkH3p
%#
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OkHttpClient okHttpClient =
new OkHttpClient.Builder()
.dispatcher(
new Dispatcher(
new IdlingThreadPoolExecutor(
"OkHttp", ...)))
.build();
OkHttp
ThreadPoolExecutor
(Dispatcher. executorService()"()
& h3ps://goo.gl/UVdQ9B "(
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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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UriIdlingResource!
53
Client
GET A 
...
GET B and C
1
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pRxIdler
https://github.com/square/RxIdler
pRxJava!
p "API
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IdlingResource ) )
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IdlingResource(2
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IdlingResource
UI Automator
pSelenium 5 API
View
1
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// "OK"
//
assertThat(
uiDevice.wait(
Until.hasObject(By.text("OK")),
5000L), is(true));
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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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UI Automator
#
p $ )uiDevice.wait()#
p Until
%"!&
pfindObject()
pfindObjects()
pgone()
phasObject()
67
uiDevice.wait('%",
()
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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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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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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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pIdlingResource#*
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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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&!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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Espresso
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Espresso
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