### Question:
RemoteCall { public static RemoteResult execute(RemoteCallable<IBackupCallback> callable, long timeoutMs) throws RemoteException { return new RemoteCall(callable, timeoutMs).call(); } RemoteCall(RemoteCallable<IBackupCallback> callable, long timeoutMs);  RemoteCall(boolean cancelled, RemoteCallable<IBackupCallback> callable, long timeoutMs); static RemoteResult execute(RemoteCallable<IBackupCallback> callable, long timeoutMs); @WorkerThread RemoteResult call(); void cancel();  }### Answer:
@Test public void testExecute_whenCallbackIsCalledBeforeTimeout_returnsResult() throws Exception { RemoteResult result = runInWorkerThread( () -> RemoteCall.execute(callback -> callback.operationComplete(3), 1000)); assertThat(result.get()).isEqualTo(3); }
@Test public void testExecute_whenTimesOutBeforeCallback_returnsTimeOut() throws Exception { ConditionVariable scheduled = new ConditionVariable(false); Future<RemoteResult> result = runInWorkerThreadAsync( () -> RemoteCall.execute( callback -> { postDelayed( Handler.getMain(), () -> callback.operationComplete(0), 1000); scheduled.open(); }, 500)); scheduled.block(); runToEndOfTasks(Looper.getMainLooper()); assertThat(result.get()).isEqualTo(RemoteResult.FAILED_TIMED_OUT); }