Allow package local mocking for ActivityManager Unit Tests.

 * A base class to handle common operations in activity related unit tests.

 */

public class ActivityTestsBase {

    private static boolean sOneTimeSetupDone = false;

    private final Context mContext = InstrumentationRegistry.getContext();

    private HandlerThread mHandlerThread;

    @Before

    public void setUp() throws Exception {

        if (!sOneTimeSetupDone) {

            sOneTimeSetupDone = true;

            // Allows to mock package local classes and methods

            System.setProperty("dexmaker.share_classloader", "true");

            MockitoAnnotations.initMocks(this);

        }

        mHandlerThread = new HandlerThread("ActivityTestsBaseThread");

        mHandlerThread.start();

    }