Helper functions for working with Tasks from BoltsAndroid

TaskHelper

import java.util.concurrent.Executor;
import bolts.Task;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

public abstract class TaskHelper {

    public static void assertTaskFinishedSuccessfully(Task<?> task) {
        assertTrue(task.isCompleted());
        assertFalse(task.isCancelled());
        assertFalse(task.isFaulted());
    }

    public static void assertTaskFailed(Task<?> task) {
        assertTrue(task.isCompleted());
        assertFalse(task.isCancelled());
        assertTrue(task.isFaulted());
    }

    public static Executor executeImmediately() {
        return Runnable::run;
    }
    
}

If you can't use Retrolambda, then you can replace Runnable::run with

new Executor() {
    @Override
    public void execute(Runnable command) {
        command.run();
    }
};