ServiceTestRule is not able to start/bind a service #935
Description
Description
Following the steps provided here , I was expecting to be able to start/bind to a service a robolectric test. However, the test keep falling with error: Waited for 5 SECONDS, but service was never connected
Steps to Reproduce
I created a minimal project that is possible to replicate the issue (see below). In terms of code, here it is:
internal class DummyTestService : Service() {
override fun onBind(intent: Intent?): IBinder {
return LocalBinder()
}
inner class LocalBinder : Binder() {
// Return this instance of DummyTestService so clients can call public methods
fun getService(): DummyTestService = this@DummyTestService
}
}
And the test:
@RunWith(AndroidJUnit4::class)
@MediumTest
internal class DummyTestServiceTest {
@get:Rule
val serviceRule = ServiceTestRule()
@Test
fun testWithStartedService() {
serviceRule.startService(
Intent(
ApplicationProvider.getApplicationContext<Context>(),
DummyTestService::class.java
)
)
// Add your test code here.
}
@Test
fun testWithBoundService() {
val app = ApplicationProvider.getApplicationContext<Context>()
val binder = serviceRule.bindService(
Intent(
app,
DummyTestService::class.java
)
)
val service = (binder as DummyTestService.LocalBinder).getService()
Assert.assertNotNull(service)
}
}
Expected Results
How be able to start and bind to a service from a robolectric test.
Actual Results
Instead the test fails with the following stacktrace:
Main looper has queued unexecuted runnables. This might be the cause of the test failure. You might need a shadowOf(getMainLooper()).idle() call.
java.lang.Exception: Main looper has queued unexecuted runnables. This might be the cause of the test failure. You might need a shadowOf(getMainLooper()).idle() call.
at org.robolectric.android.internal.AndroidTestEnvironment.checkStateAfterTestFailure(AndroidTestEnvironment.java:502)
at org.robolectric.RobolectricTestRunner$HelperTestRunner$1.evaluate(RobolectricTestRunner.java:581)
at org.robolectric.internal.SandboxTestRunner$2.lambda$evaluate$0(SandboxTestRunner.java:278)
at org.robolectric.internal.bytecode.Sandbox.lambda$runOnMainThread$0(Sandbox.java:89)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.util.concurrent.TimeoutException: Waited for 5 SECONDS, but service was never connected
at androidx.test.rule.ServiceTestRule.waitOnLatch(ServiceTestRule.java:272)
at androidx.test.rule.ServiceTestRule.bindServiceAndWait(ServiceTestRule.java:205)
at androidx.test.rule.ServiceTestRule.bindService(ServiceTestRule.java:149)
at com.myapps.myapplication.DummyTestServiceTest.testWithBoundService(DummyTestServiceTest.kt:36)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at androidx.test.rule.ServiceTestRule$ServiceStatement.evaluate(ServiceTestRule.java:337)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.robolectric.RobolectricTestRunner$HelperTestRunner$1.evaluate(RobolectricTestRunner.java:575)
... 6 more
AndroidX Test and Android OS Versions
testImplementation "junit:junit:4.13.1"
testImplementation "androidx.test:runner:1.3.0"
testImplementation "androidx.test.ext:junit:1.1.2"
testImplementation "org.robolectric:robolectric:4.5.1"
testImplementation "org.robolectric:shadows-multidex:4.5.1"
Using Android Studio 2020.3.1 Canary 14
Link to a public git repo demonstrating the problem:
Am I missing something or this is really a bug?