NPE when calling MockitoAnnotations.initMocks() in AndroidTestCase

Question

Trying to use mockito in my AndroidTestCase. I added the dependencies to the build.gradle:

final DEXMAKER_VERSION = \'1.2\'

dependencies {
    // ...
    an         


        

Answer 1

Its a bug in dexmaker for which I have submitted a fix: https://github.com/crittercism/dexmaker/pull/24

Answer 2

For me the solution was to use the Method Mockito.mock() for each Mocking Object instead of using MockitoAnnotations.initMocks(this);

So for example:

public class HomePresenterTest {
    private Repository repository;
    private HomePresenter presenter;

    @Before
    public void before() {
        repository = mock(Respository.class);
        presenter = new HomePresenter(repository);
    }

    //Your tests
}

Answer 3

I've created an issue there https://github.com/mockito/mockito/issues/392 Original answer with hotfix there https://stackoverflow.com/a/36642606/1224247

Answer 4

You could try to replace

MockitoAnnotations.initMocks(this);

with this

System.setProperty("dexmaker.dexcache", getContext().getCacheDir().getPath());

It works for me. See ref here