I have changed some imports for Rxjava related to AndroidSchedulers and Observable. when I did that I get the following error.
I am not sure how to proceed with it.
Error
These are my changed imports in my presenter.
import io.reactivex.Flowable;
//import rx.schedulers.Schedulers;
import io.reactivex.schedulers.Schedulers;
//import rx.Observable;
import io.reactivex.Observable;
//import rx.android.schedulers.AndroidSchedulers;
import io.reactivex.android.schedulers.AndroidSchedulers;
Error is on this piece of code as shown in the picture
public void setUserFocusChangeObservable(Observable<Boolean> observable) {
subscriptions.add(observable
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Action1<Boolean>() {
#Override
public void call(Boolean hasFocus) {
//If screen is dimmed, do not allow interaction
if (!screenUtils.isScreenDimmed()) {
if (user != null) {
if (!hasFocus) {
view.renderUserText(user.toString());
}
} else {
//Set text to nothing if interaction happens with autosuggest when screen is dimmed
view.renderUserText("");
}
}
}
}));
}
In the picture I have also highlighted my imports from Gradle
your suggestions are very helpful
R
RxJava 2 changed several class names from RxJava 1. In particular, Action1 has been changed to Consumer:
.subscribe(new Consumer<Boolean>() { /* ... */ })
Make sure you import io.reactivex.functions.Consumer instead of java.util.function.Consumer.
Alternatively, you can use a Java 8 lambda:
.subscribe(hasFocus -> { /* ... */ })
When the parameter to subscribe is fixed, this will also reveal another class name difference: CompositeSubscription is now CompositeDisposable.
How do I test Jobs created with Android-Job library? Any ideas on unit testing, instrumented testing or even manual testing are appreciated, I just want to check if it works as expected.
To be specific, I have a job that performs an HTTP request every N hours:
package com.kondenko.yamblzweather.job;
import android.support.annotation.NonNull;
import com.evernote.android.job.Job;
import com.evernote.android.job.JobRequest;
import com.kondenko.yamblzweather.model.entity.WeatherData;
import com.kondenko.yamblzweather.ui.weather.WeatherInteractor;
import com.kondenko.yamblzweather.utils.SettingsManager;
import java.util.concurrent.TimeUnit;
import javax.inject.Inject;
public class UpdateWeatherJob extends Job {
private WeatherInteractor interactor;
private String cityId;
private String units;
private long refreshRateHr;
// Do not delete, needed for job creation
public static final String TAG = "UpdateWeaterJob";
#Inject
public UpdateWeatherJob(WeatherInteractor interactor, SettingsManager settingsManager) {
this.interactor = interactor;
this.cityId = settingsManager.getSelectedCity();
this.units = settingsManager.getSelectedUnitValue();
this.refreshRateHr = settingsManager.getRefreshRate();
}
#NonNull
#Override
protected Result onRunJob(Params params) {
WeatherData data = interactor.getWeather(cityId, units).blockingGet();
return data != null ? Result.SUCCESS : Result.FAILURE;
}
public void buildJobRequest(String name) {
new JobRequest.Builder(UpdateWeatherJob.TAG)
.setPeriodic(TimeUnit.HOURS.toMillis(refreshRateHr))
.setRequiredNetworkType(JobRequest.NetworkType.CONNECTED)
.setRequirementsEnforced(true)
.setPersisted(true)
.build()
.schedule();
}
}
We at Evernote test jobs the following way:
Unit tests -> We tend to extract the logic into actions, similar to presenters in a MVP setup. This removes Android dependencies and the actions are unit testable.
QA -> We have QA options to trigger jobs manually. This way our QA team can verify that the job produces the correct output
Verifying timing -> There we rely on the logs.
You also should take a look at these slides. ADB can be really helpful to verify curtain assumptions.
I am a bit new in testing, so bear with me.
I would like to test the behavior of onDismiss() method of mine. I would like to make sure that onDismiss() calls the showDialog() method for sure. In order to do this, I would like to verify is the mock in showDialog() being called or not.
I am getting an error message, saying there is no interaction with that mock. If I run it with deBug mode, I see we step on the loadingDialog.show() line, still I am getting this error.
Questions:
I would like to know, how can I test a subMethod call in this case?
Why is this happening?
(showDialog() is already covered by separate tests)
test:
sut.onDismiss(mockDialog)
verify(mockLoadingDialog, times(1)).show();
code:
public void onDismiss(DialogInterface dialog) {
showDialog();
}
public synchronized void showDialog() {
loadingDialog.show();
}
Error message: Actually, there were zero interactions with this mock.
package junit;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;
#RunWith(MockitoJUnitRunner.class)
public class BasicTest {
#InjectMocks
private Basic basic;
#Mock
private LoadingDialog mockLoadingDialog;
#Mock
private DialogInterface dialog;
#Before
public void setUp() throws Exception {
}
#After
public void tearDown() throws Exception {
}
#Test
public void testOnDismiss() {
basic.onDismiss(dialog);
verify(mockLoadingDialog, times(1)).show();
}
}
Hope this helps!
Using #InjectMocks ensures that the mocks are injected wherever necessary and you do not have to init mocks in setup.
Would anyone know how to test for the appearance of a Toast message in android espresso? In robotium its easy & I used but started working in espresso but dont getting the exact command.
This slightly long statement works for me:
import static android.support.test.espresso.assertion.ViewAssertions.matches;
import static android.support.test.espresso.matcher.RootMatchers.withDecorView;
import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
import static android.support.test.espresso.matcher.ViewMatchers.withText;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
....
onView(withText(R.string.TOAST_STRING)).inRoot(withDecorView(not(is(getActivity().getWindow().getDecorView())))).check(matches(isDisplayed()));
The accepted answer is a good one but didn't work for me. So I searched a bit and found this blog article.
This gave me an idea of how to do it and I updated the solution above.
First I implemented the ToastMatcher:
import android.os.IBinder;
import android.support.test.espresso.Root;
import android.view.WindowManager;
import org.hamcrest.Description;
import org.hamcrest.TypeSafeMatcher;
public class ToastMatcher extends TypeSafeMatcher<Root> {
#Override
public void describeTo(Description description) {
description.appendText("is toast");
}
#Override
public boolean matchesSafely(Root root) {
int type = root.getWindowLayoutParams().get().type;
if (type == WindowManager.LayoutParams.TYPE_TOAST) {
IBinder windowToken = root.getDecorView().getWindowToken();
IBinder appToken = root.getDecorView().getApplicationWindowToken();
if (windowToken == appToken) {
// windowToken == appToken means this window isn't contained by any other windows.
// if it was a window for an activity, it would have TYPE_BASE_APPLICATION.
return true;
}
}
return false;
}
}
Then I implemented my check methods like this:
public void isToastMessageDisplayed(int textId) {
onView(withText(textId)).inRoot(MobileViewMatchers.isToast()).check(matches(isDisplayed()));
}
MobileViewMatchers is a container for accessing the matchers. There I defined the static method isToast().
public static Matcher<Root> isToast() {
return new ToastMatcher();
}
This works like a charm for me.
First make sure to import:
import static android.support.test.espresso.Espresso.onView;
import static android.support.test.espresso.matcher.ViewMatchers.withText;
import static android.support.test.espresso.matcher.RootMatchers.withDecorView;
import static android.support.test.espresso.assertion.ViewAssertions.matches;
Inside your class you probably have a rule like this:
#Rule
public ActivityTestRule<MyNameActivity> activityTestRule =
new ActivityTestRule<>(MyNameActivity.class);
Inside your test:
MyNameActivity activity = activityTestRule.getActivity();
onView(withText(R.string.toast_text)).
inRoot(withDecorView(not(is(activity.getWindow().getDecorView())))).
check(matches(isDisplayed()));
This worked for me, and it was pretty easy to use.
If you're using the newest Android Testing Tools from Jetpack, you know, that ActivityTestRule is deprecated and you should use ActivityScenario or ActivityScenarioRule(which contains the first).
Prerequisites. Create decorView variable and assign it before tests;
#Rule
public ActivityScenarioRule<FeedActivity> activityScenarioRule = new ActivityScenarioRule<>(FeedActivity.class);
private View decorView;
#Before
public void setUp() {
activityScenarioRule.getScenario().onActivity(new ActivityScenario.ActivityAction<FeedActivity>() {
#Override
public void perform(FeedActivityactivity activity) {
decorView = activity.getWindow().getDecorView();
}
});
}
Test itself
#Test
public void given_when_thenShouldShowToast() {
String expectedWarning = getApplicationContext().getString(R.string.error_empty_list);
onView(withId(R.id.button))
.perform(click());
onView(withText(expectedWarning))
.inRoot(withDecorView(not(decorView)))// Here we use decorView
.check(matches(isDisplayed()));
}
getApplicationContext() can be taken from androidx.test.core.app.ApplicationProvider.getApplicationContext;
First create a cutom Toast Matcher which we can use in our test cases -
public class ToastMatcher extends TypeSafeMatcher<Root> {
#Override public void describeTo(Description description) {
description.appendText("is toast");
}
#Override public boolean matchesSafely(Root root) {
int type = root.getWindowLayoutParams().get().type;
if ((type == WindowManager.LayoutParams.TYPE_TOAST)) {
IBinder windowToken = root.getDecorView().getWindowToken();
IBinder appToken = root.getDecorView().getApplicationWindowToken();
if (windowToken == appToken) {
//means this window isn't contained by any other windows.
return true;
}
}
return false;
}
}
1. Test if the Toast Message is Displayed
onView(withText(R.string.mssage)).inRoot(new ToastMatcher())
.check(matches(isDisplayed()));
2. Test if the Toast Message is not Displayed
onView(withText(R.string.mssage)).inRoot(new ToastMatcher())
.check(matches(not(isDisplayed())));
3. Test id the Toast contains specific Text Message
onView(withText(R.string.mssage)).inRoot(new ToastMatcher())
.check(matches(withText("Invalid Name"));
Thanks,
Anuja
Note - this answer is from This POST.
Though the question has an accepted answer - which BTW does not work for me - I'd like to add my solution in Kotlin which I derived from Thomas R.'s answer:
package somepkg
import android.support.test.espresso.Espresso.onView
import android.support.test.espresso.Root
import android.support.test.espresso.matcher.ViewMatchers.withText
import android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
import android.view.WindowManager.LayoutParams.TYPE_TOAST
import org.hamcrest.Description
import org.hamcrest.Matcher
import org.hamcrest.TypeSafeMatcher
/**
* This class allows to match Toast messages in tests with Espresso.
*
* Idea taken from: https://stackoverflow.com/a/33387980
*
* Usage in test class:
*
* import somepkg.ToastMatcher.Companion.onToast
*
* // To assert a toast does *not* pop up:
* onToast("text").check(doesNotExist())
* onToast(textId).check(doesNotExist())
*
* // To assert a toast does pop up:
* onToast("text").check(matches(isDisplayed()))
* onToast(textId).check(matches(isDisplayed()))
*/
class ToastMatcher(private val maxFailures: Int = DEFAULT_MAX_FAILURES) : TypeSafeMatcher<Root>() {
/** Restrict number of false results from matchesSafely to avoid endless loop */
private var failures = 0
override fun describeTo(description: Description) {
description.appendText("is toast")
}
public override fun matchesSafely(root: Root): Boolean {
val type = root.windowLayoutParams.get().type
#Suppress("DEPRECATION") // TYPE_TOAST is deprecated in favor of TYPE_APPLICATION_OVERLAY
if (type == TYPE_TOAST || type == TYPE_APPLICATION_OVERLAY) {
val windowToken = root.decorView.windowToken
val appToken = root.decorView.applicationWindowToken
if (windowToken === appToken) {
// windowToken == appToken means this window isn't contained by any other windows.
// if it was a window for an activity, it would have TYPE_BASE_APPLICATION.
return true
}
}
// Method is called again if false is returned which is useful because a toast may take some time to pop up. But for
// obvious reasons an infinite wait isn't of help. So false is only returned as often as maxFailures specifies.
return (++failures >= maxFailures)
}
companion object {
/** Default for maximum number of retries to wait for the toast to pop up */
private const val DEFAULT_MAX_FAILURES = 5
fun onToast(text: String, maxRetries: Int = DEFAULT_MAX_FAILURES) = onView(withText(text)).inRoot(isToast(maxRetries))!!
fun onToast(textId: Int, maxRetries: Int = DEFAULT_MAX_FAILURES) = onView(withText(textId)).inRoot(isToast(maxRetries))!!
fun isToast(maxRetries: Int = DEFAULT_MAX_FAILURES): Matcher<Root> {
return ToastMatcher(maxRetries)
}
}
}
I hope this will be of help for later readers - the usage is described in the comment.
I write my custom toast matcher:
import android.view.WindowManager
import androidx.test.espresso.Root
import org.hamcrest.Description;
import org.hamcrest.TypeSafeMatcher;
class ToastMatcher : TypeSafeMatcher<Root>() {
override fun describeTo(description: Description) {
description.appendText("is toast")
}
override fun matchesSafely(root: Root): Boolean {
val type = root.getWindowLayoutParams().get().type
if (type == WindowManager.LayoutParams.TYPE_TOAST) {
val windowToken = root.getDecorView().getWindowToken()
val appToken = root.getDecorView().getApplicationWindowToken()
if (windowToken === appToken) {
return true
}
}
return false
}
}
And use like this:
onView(withText(R.string.please_input_all_fields)).inRoot(ToastMatcher()).check(matches(isDisplayed()))
For kotlin, I had to use the apply extension function, and this worked for me.
1- declare your ToastMatcher class in the androidTest folder:
class ToastMatcher : TypeSafeMatcher<Root?>() {
override fun matchesSafely(item: Root?): Boolean {
val type: Int? = item?.windowLayoutParams?.get()?.type
if (type == WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW) {
val windowToken: IBinder = item.decorView.windowToken
val appToken: IBinder = item.decorView.applicationWindowToken
if (windowToken === appToken) { // means this window isn't contained by any other windows.
return true
}
}
return false
}
override fun describeTo(description: Description?) {
description?.appendText("is toast")
}
}
2- Then you use like this to test that the toast message actually displays
onView(withText(R.string.invalid_phone_number))
.inRoot(ToastMatcher().apply {
matches(isDisplayed())
});
Attribution to ToastMatcher class:
/**
* Author: http://www.qaautomated.com/2016/01/how-to-test-toast-message-using-espresso.html
*/
I would say for toast messages first define your rule
#Rule
public ActivityTestRule<AuthActivity> activityTestRule =
new ActivityTestRule<>(AuthActivity.class);
then whatever toast message text you are looking for type it in between quotation
for example I used "Invalid email address"
onView(withText("Invalid email address"))
.inRoot(withDecorView(not(activityTestRule.getActivity().getWindow().getDecorView())))
.check(matches(isDisplayed()));
I would like to suggest an alternative method, especially if you need to check that particular toast is NOT displayed
The problem here that
onView(viewMatcher)
.inRoot(RootMatchers.isPlatformPopup())
.check(matches(not(isDisplayed())))
or
onView(viewMatcher)
.inRoot(RootMatchers.isPlatformPopup())
.check(doesNotExist())
or any other custom inRoot checks
are throwing NoMatchingRootException even before the code passes to check method
You may just catch the exception and complete the test but that's not a good option since throwing and catching NoMatchingRootException consumes a lot of time in a comparison with the default test case. Seems that Espresso is waiting for the Root for a while
For this case is suggest just to give up with espresso here and use UiAutomator for this assertion. The Espresso and UiAutomator frameworks could easily work together in one environment.
val device: UiDevice
get() = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())
fun assertPopupIsNotDisplayed() {
device.waitForIdle()
assertFalse(device.hasObject(By.text(yourText))))
}
fun assertPopupIsDisplayed() {
device.waitForIdle()
assertTrue(device.hasObject(By.text(yourText))))
}
Using ActivityScenarioRule and Java
Some imports for the code
import android.view.View;
import androidx.test.ext.junit.rules.ActivityScenarioRule;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import static androidx.test.espresso.Espresso.onView;
import static androidx.test.espresso.matcher.RootMatchers.withDecorView;
import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
import static androidx.test.espresso.matcher.ViewMatchers.withId;
import static androidx.test.espresso.matcher.ViewMatchers.withText;
import static org.hamcrest.Matchers.not;
1. Declare the rule
//Change YourActivity by the activity you are testing
#Rule
public ActivityScenarioRule<YourActivity> activityRule
= new ActivityScenarioRule<>(YourActivity.class);
2. Initialize the decor view
private View decorView;
#Before
public void loadDecorView() {
activityRule.getScenario().onActivity(
activity -> decorView = activity.getWindow().getDecorView()
);
}
3. Finally test it
#Test
public void testWithToasts() {
//Arrange and act code
//Modify toast_msg to your own string resource
onView(withText(R.string.toast_msg)).
inRoot(RootMatchers.withDecorView(not(decorView)))
.check(matches(isDisplayed()));
}
I'm pretty new to this, but I made a base class 'BaseTest' that has all of my actions (swiping, clicking, etc.) and verifications (checking text views for content, etc.).
protected fun verifyToastMessageWithText(text: String, activityTestRule: ActivityTestRule<*>) {
onView(withText(text)).inRoot(withDecorView(not(activityTestRule.activity.window.decorView))).check(matches(isDisplayed()))
}
protected fun verifyToastMessageWithStringResource(id: Int, activityTestRule: ActivityTestRule<*>) {
onView(withText(id)).inRoot(withDecorView(not(activityTestRule.activity.window.decorView))).check(matches(isDisplayed()))
}
this works for me
onView(withId(R.id.inputField)).check(matches(withText("Lalala")));
The way Toasts are implemented makes it possible to detect a toast has been displayed. However there is no way to see if a Toast has been requested, thru a call to show()) or to block between the period of time between show() and when the toast has become visible. This is opens up unresolvable timing issues (that you can only address thru sleep & hope).
If you really really want to verify this, here's a not-so-pretty alternative using Mockito and a test spy:
public interface Toaster {
public void showToast(Toast t);
private static class RealToaster {
#Override
public void showToast(Toast t) {
t.show();
}
public static Toaster makeToaster() {
return new RealToaster();
}
}
Then in your test
public void testMyThing() {
Toaster spyToaster = Mockito.spy(Toaster.makeToaster());
getActivity().setToaster(spyToaster);
onView(withId(R.button)).perform(click());
getInstrumentation().runOnMainSync(new Runnable() {
#Override
public void run() {
// must do this on the main thread because the matcher will be interrogating a view...
Mockito.verify(spyToaster).showToast(allOf(withDuration(Toast.LENGTH_SHORT), withView(withText("hello world"));
});
}
// create a matcher that calls getDuration() on the toast object
Matcher<Toast> withDuration(int)
// create a matcher that calls getView() and applies the given view matcher
Matcher<Toast> withView(Matcher<View> viewMatcher)
another answer regarding this
if(someToast == null)
someToast = Toast.makeText(this, "sdfdsf", Toast.LENGTH_LONG);
boolean isShown = someToast.getView().isShown();
I have not much experience in unit testing, especially with Mockito and now I have encountered the following situation.
class A {
void setField(String obj) {
}
Object execute() {
throw new RuntimeException("Meh!");
}
}
class B {
//function to be tested
static Object someMethod() {
A a = new A();
a.setField("test");
Object response = a.execute();
//logic here
return response;
}
}
class BTest() {
A aInstance = mock(A.class);
#Test
public void test_someMethod_when_exec_returns_X() {
when(aInstance.execute()).thenReturns("X");// doesn’t work
assertTrue("X", B.someMethod());
}
}
I want to test the someMethod static method when a.execute() returns specific value.
I know, I can create a mock object of A and pass it to someMethod function, which is not a good solution as I should change the signature of someMethod.
What is the correct solution in this case?
If you check out PowerMockito's documentation you'll realize that the following is what you need:
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.powermock.api.mockito.PowerMockito.mock;
import static org.powermock.api.mockito.PowerMockito.whenNew;
// execute the test with the appropriate runner
#RunWith(PowerMockRunner.class)
// prepare B for instrumentation so we can hack stuff inside
#PrepareForTest(B.class)
public class MyTest {
#Test
public void bShouldCallA() throws Exception {
// create a mock for A and configure its behaviour
A aMock = mock(A.class);
when(aMock.execute()).thenReturn("X");
// make sure that when A's constructor is called in the static method, the mock above is returned
whenNew(A.class).withNoArguments().thenReturn(aMock);
// do the actual invocation
Object actualResult = B.someMethod();
// check result and interactions
assertEquals("X", actualResult);
verify(aMock).setField("test");
}
}
As I mentioned, the PowerMockito doesn't work in android, you can just mock android object with that. And here comes engineering solution :)
Factory class to create object A.
public class AFactory {
static private AFactory sInsntance = new AFactory();
public static AFactory createObject() {
return sInsntance.createInternally();
}
protected TMMethodBuilder createInternally() {
return new A();
}
//This function is only for testing, in order to inject factory
#Deprecated
public static void setFactory(AFactory mock) {
sInsntance = mock;
}
}
And create object A:
A a = AFactory.createObject();
In Test project extend AFactory and override createInternally() method to return mocked object.
public class AFactoryTest extends AFactory {
private static A a = mock(A.class);
#Override
protected TMMethodBuilder createInternally() {
return a;
}
}
So in test class just do the following:
factory = new AFactoryTest();
a = factory.createInternally();
AFactory.setFactory(factory);
//
when(..).thenReturn();