Cannot initialize Component during Instrumentation Tests

[bryanstern]

I'm getting the following runtime error using Dagger 2 while trying to run Instrumentation tests (using Espresso). In my project, I create an instance of a Component in the Application class and use that instance to inject values into Activities, Fragments, etc.. The AndroidComponent constructor requires a Context and the Application class passes an instance of itself. I have debug and release build variants which run fine, but the Instrumentation Runner (or GoogleInstrumentationTestRunner in this case) causes this strange error.

Logcat

        AndroidRuntime  E  FATAL EXCEPTION: main
                        E  Process: com.project.android.dev, PID: 3556
                        E  java.lang.NoClassDefFoundError: com/project/android/DataModule$$ProvidesApiFactory
                        E      at com.project.android.Dagger_AndroidComponent.initialize(Dagger_AndroidComponent.java:65)
                        E      at com.project.android.Dagger_AndroidComponent.<init>(Dagger_AndroidComponent.java:57)
                        E      at com.project.android.Dagger_AndroidComponent.<init>(Dagger_AndroidComponent.java:31)
                        E      at com.project.android.Dagger_AndroidComponent$Builder.build(Dagger_AndroidComponent.java:117)
                        E      at com.project.android.AndroidComponent$Initializer.init(AndroidComponent.java:21)
                        E      at com.project.android.App.onCreate(App.java:51)
                        E      at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1007)
                        E      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4344)
                        E      at android.app.ActivityThread.access$1500(ActivityThread.java:135)
                        E      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
                        E      at android.os.Handler.dispatchMessage(Handler.java:102)
                        E      at android.os.Looper.loop(Looper.java:136)
                        E      at android.app.ActivityThread.main(ActivityThread.java:5017)
                        E      at java.lang.reflect.Method.invokeNative(Native Method)
                        E      at java.lang.reflect.Method.invoke(Method.java:515)
                        E      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
                        E      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
                        E      at dalvik.system.NativeStart.main(Native Method)
                        E  Caused by: java.lang.ClassNotFoundException: Didn't find class "com.project.android.DataModule$$ProvidesApiFactory" on path: DexPathList[[zip file "/system/framewo
                           rk/android.test.runner.jar", zip file "/data/app/com.project.android.dev.test-2.apk", zip file "/data/app/com.project.android.dev-2.apk"],nativeLibraryDirectories=[
                           /data/app-lib/com.project.android.dev.test-2, /data/app-lib/com.project.android.dev-2, /vendor/lib, /system/lib]]
                        E      at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
                        E      at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
                        E      at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
                        E      ... 18 more

                           Process 3556 ended

Below is basically what the classes in question consist of. The design is pretty much straight from the samples.

The main gist of App.java

public class App extends android.app.Application {
    private AndroidComponent component;

    @Override
    public void onCreate() {
        super.onCreate();

        component = AndroidComponent.Initializer.init(this.getApplicationContext());
        component().inject(this);
    }

    public AndroidComponent component() {
        return component;
    }
}

The main gist of AndroidComponent.java

@Singleton
@Component(modules = { DataModule.class })
public interface AndroidComponent {
    void inject(BaseActivity activity);
    void inject(App application);
    void inject(BaseFragment fragment);

    public final static class Initializer {
        static AndroidComponent init(Context app) {
            return Dagger_AndroidComponent.builder()
                    .dataModule(new DataModule(app))
                    .build();
        }
    }
}

The main gist of DataModule.java

public class DataModule {

    private final Context application;

    public DataModule(Context application) {
        this.application = application;
    }

    @Provides @Singleton
    Api providesApi() {
        return new Api(application);
    }
}

[bryanstern]

After researching this more, I'm pretty sure the issue is actually with Espresso.
https://code.google.com/p/android-test-kit/issues/detail?id=105