Develop Reference

SecurityProvider in Mockito Tests when run alongside Robolectric

We haven an Android project where we use MockitoTestRunner and RobolectricTestRunner for different kinds of tests.
I have written a set of unit test that are concerned with SSL, thus loading certs/keystores/truststores, etc. For this I used the MockitoJUnitRunner and added the Bouncycastle provider programmatically as such:
Security.insertProviderAt(new BouncyCastleProvider(), 1);
Now, these tests run perfectly fine when run on their own - e.g. when I directly run single methods from the test classes, or run these classes from the Project tree menu, they work just fine.
But when I run said tests along side ANY test which uses the RobolectricTestRunner (such as if I just run all the tests in my project together before committing), I get the following exception:
java.io.IOException: error constructing MAC:
java.lang.SecurityException: JCE cannot authenticate the provider BC
I'm baffled. How will the testrunner used in one test class affect the run of other classes, especially if we use a different test runner?
Additional info:
The exception only occurs once I actually try do do something with the BC provider (e.g. the first time the test tries to load a PKCS12 certificate) - the insertProviderAt(...) call itself seems to pass fine...
Also when I print out the list of providers for each test run, I see that Robolectric already has a BC provider in there, but is still failing when I try to use it.
Also if I don't add the BC provider, the tests still fail with the same error when run in a test suite alongside Robolectric tests. When run alone they fail with java.security.NoSuchProviderException: no such provider: BC, as we're specifying the provider explicitly.

Seems like Robolectric is using its own classloader (that favors its replacements on the Android API), which could be in conflicts with the regular classloader of Mockito.
So for using at the same time the Robolectric and mockito, you may do the following:
Make use of the Robolectric runner. Robolectric uses its own classloader that favors its replacements for the Android API, so it really does need to handle classloading on its own. There's no other way to use Robolecric.
Replace the #RunWith(MockitoJUnitRunner.class) with these alternative methods covering the behaviour of MockitoJUnitRunner:
#Before public void setUpMockito() {
MockitoAnnotations.initMocks(this);
}
#After public void tearDownMockito() {
Mockito.validateMockitoUsage();
}
Maybe it could be a workaround for using the Robolectric classloader and Mockito at the same time.

NoClassDefFoundError ObjenesisStd on Android API 19

I'm getting the following crashing during an instrumentation test ONLY on emulators running API v19. If I run on newer versions everything works fine.
03-01 20:26:18.781 2878-2878/? E/MonitoringInstrumentation: Exception
encountered by: Thread[main,5,main]. Dumping thread state to outputs
and pining for the fjords.
java.lang.NoClassDefFoundError: org.objenesis.ObjenesisStd
at org.mockito.internal.creation.jmock.ClassImposterizer.(ClassImposterizer.java:36)
at org.mockito.internal.creation.jmock.ClassImposterizer.(ClassImposterizer.java:29)
at org.mockito.internal.util.MockCreationValidator.isTypeMockable(MockCreationValidator.java:17)
at org.mockito.internal.util.MockCreationValidator.validateType(MockCreationValidator.java:21)
at org.mockito.internal.creation.MockSettingsImpl.validatedSettings(MockSettingsImpl.java:133)
at org.mockito.internal.creation.MockSettingsImpl.confirm(MockSettingsImpl.java:127)
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:50)
at org.mockito.Mockito.mock(Mockito.java:1243)
at org.mockito.Mockito.mock(Mockito.java:1120)
The problem is this line:
java.lang.NoClassDefFoundError: org.objenesis.ObjenesisStd
My app is multi-dex, and I'm using dexmaker-mockito for androidTestCompile. I'm at a complete loss why this only breaks on an older API. It started happening when I added another module to my project, which is a pure java module with no dependency on mockito.

This exception (ClassNotFoundException) tells you about a unmet dependency at runtime: the JVM needs to load a class; which is not present in the class path.
Here it is Mockito that needs Objenesis. Normally that library should be pulled automatically when you a system like maven and give the correct dependency to Mockito.

Mocking Google Analytics v4

I'm trying to test my code that depends on Google Analytics SDK v4.
Specifically I'm trying to mock com.google.android.gms.analytics.Tracker with Mockito.
Tracker tracker = Mockito.mock(Tracker.class); yields this error.
Are there any approaches to take? The only thing I can think of is to create my own wrapper.

I believe the code snipped at fault is Tracker.class - as this will instantiate the class, which in turn throws the VerifyError. This is not an issue with your code, but is a limitation of Google Play Services. The issue has been reported in the Robolectric project and here.
I used the solution provided in the second link by SuperJugy, by inserting the following to the bottom of my Gradle build file:
tasks.withType(Test) {
test {
// set JVM arguments for the test JVM(s)
jvmArgs '-XX:-UseSplitVerifier'
}
}
To get it working in Android Studio I had to add the VM Option -noverify to my test build configuration.
I think you may be able to work-around the problem using a wrapper, so long as the wrapper code never instantiates the Tracker class. However this may not be easy (or possible?), please let me know if end up going down this path and succeed!

infinitest usage with Robotium for Android

I cant get infinitest(continuous test runner for TDD) to auto test with android junit test cases. Im using Robotium for UI testing.
Is infinitest compatible with Robotium ?
Here is the Problem page error (within eclipse Problem window) i get even though my test cases run fine when executed manually:
Description Resource Path Location Type
RuntimeException (Stub!) in ProjectTests. ProjectTests.java
line 0 Infinitest Test Failure

Android NoClassDefFound when referencing class from external libraries (IntelliJ IDEA 12)

I'm having an issue with IntelliJ's dependency handling in regards to external modules. Here's some context:
I'm writing an Android app which implements Google Maps. For my current feature set, I require two external libraries-- Google's Play Services Library and mapex (A third party google map extension library located here https://code.google.com/p/mapex/). I actually built most of this project in Android Studio before I was recommended to move to IntelliJ due to the easier dependency handling. But now I'm here and still having problems.
My Error
When trying to build an object from a class located in the mapex package (com.androidnatic.maps), I get this error when starting the activity the view is contained in (object has not been created yet):
07-03 11:40:35.837: ERROR/dalvikvm(3585): Could not find class 'com.androidnatic.maps.SimpleMapView', referenced from method com.example.myproject.MapActivity.showHeatMap
And then, upon creation, my app force closes and leaves this behind in logcat:
7-03 11:40:45.467: ERROR/AndroidRuntime(3585): FATAL EXCEPTION: main
java.lang.NoClassDefFoundError: com.androidnatic.maps.SimpleMapView
at com.example.myproject.MapActivity.showHeatMap(MapActivity.java:492)
Yet I'm completely stumped because my IDE gives me no sign that anything is wrong! Classes are auto-filled in when trying to access them from MyProject.
ide-fill-in http://www.tonyandrys.com/img/fillin.jpg
No build errors about missing classes, missing modules, class definitions, or anything related.
I get the same results if I try to access the class via its full package name as well.
// No dice.
final SimpleMapView mapView = new SimpleMapView(this, "apikey");
final com.androidnatic.maps.SimpleMapView mapView = new com.androidnatic.maps.SimpleMapView(this, "apikey");
It seems that there's only an issue when the application is running on my phone, as far as my IDE is concerned.
Here's the structure of MyProject:
main-project-structure http://www.tonyandrys.com/img/mainstructure.jpg
Here's my main project's dependency settings (where I assume I screwed up somewhere):
project-structure http://www.tonyandrys.com/img/projectstructure.jpg
And here is the structure of the mapex library module:
mapex-lib http://www.tonyandrys.com/img/mapexstructure.jpg
The class files that I'm trying to access live in MapExLib/gen and MapExLib/src, which are currently marked as source directories (blue).
Does anyone have any ideas on how to proceed from here?

Try to do this :
Android, IntelliJ Idea, changing module type
I had the same error "Could not find class XXX from referenced method XXX" with Intellij, involving an Android Test Module and a test which could not find the Activity class anywhere.
I set inside the Project Structure the main Module's Facet Android to Library Module (checkbox) and it worked...
Let us know