java.lang.NoClassDefFoundError: android/app/Activity ошибка при тестировании презентера

Я поставил задачу, покрыть приложение от ног до головы тестами, начал с презентеров.

Когда я хочу тестировать презентер, вот такие образом:

package ru.exodus.lorehub.presenters;

import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import 
 ru.exodus.lorehub.presentation.presenters.activities.AuthPresenter;
 import ru.exodus.lorehub.presentation.views.activities.AuthView;
 import ru.exodus.lorehub.presentation.views.activities.AuthView$$State;
import static org.mockito.Mockito.verify;
public final class AuthPresenterTest {
@Mock
AuthView authView;
@Mock
AuthView$$State authViewState;
private AuthPresenter presenter;
@Before
public void setUp(){
    MockitoAnnotations.initMocks(this);
    presenter = new AuthPresenter();
    presenter.attachView(authView);
    presenter.setViewState(authViewState);
}
@Test
public void shouldConnect(){
    presenter.authServer();
    verify(authViewState).showAuthFragment();
}
}

Вылезает вот эта ошибка:

java.lang.NoClassDefFoundError: android/app/Activity
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at com.arellomobile.mvp.MoxyReflector.<clinit>(MoxyReflector.java:25)
at com.arellomobile.mvp.MvpPresenter$Binder.bind(MvpPresenter.java:163)
at com.arellomobile.mvp.MvpPresenter.<init>(MvpPresenter.java:28)
at ru.exodus.lorehub.presentation.presenters.activities.AuthPresenter.<init>(AuthPresenter.java:31)
at ru.exodus.lorehub.presenters.AuthPresenterTest.setUp(AuthPresenterTest.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMainV2.main(AppMainV2.java:131)
Caused by: java.lang.ClassNotFoundException: android.app.Activity
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 64 more

Не понятно как ее исправить. Я пока только изучаю всю эту область тестирования, поэтому многого не понимаю. Буду рад всем советам, даже не относящимися к этой проблеме.

ДОБАВЛЕНИЕ

Вот презентер:

@InjectViewState
public class AuthPresenter extends MvpPresenter<AuthView> {
@Inject
public RxSocket socket;
private AuthView view;
public AuthPresenter() {
    App.getComponent().inject(this);
    view = getViewState();
}
public void authServer(){
    socket.connect()
            .observeOn(Schedulers.io())
            .subscribeOn(AndroidSchedulers.mainThread())
            .subscribe(() -> {
                listenForErrors();
                view.showAuthFragment();
            }, throwable -> {
                view.showErrorFragment(null);
                throwable.printStackTrace();
            });
}
private void listenForErrors(){
    socket.on(Socket.EVENT_ERROR)
            .observeOn(Schedulers.io())
            .subscribeOn(AndroidSchedulers.mainThread())
            .subscribe(objects -> {
                view.showError("Ошибка подключения");
                view.showErrorFragment(null);
            });
}
@Override
public void onDestroy() {
    super.onDestroy();
    socket.off(Socket.EVENT_ERROR);
}
}