test("recovered standalone") {

    val ex = new NoSuchElementException

    // exception in the end
    val o1 = Observable(1, 2, 3) ++ Observable(ex)
    val o1Revocered = o1.recovered
    assert(o1Revocered.toBlockingObservable.toList === List(Success(1), Success(2), Success(3), Failure(ex)))


    // exception in the middle
    val o2 = Observable(1, 2) ++ Observable(ex) ++ Observable(3)
    val o2Revocered = o2.recovered
    assert(o2Revocered.toBlockingObservable.toList === List(Success(1), Success(2), Failure(ex), Success(3)))


    // exception in the end
    val o3 = Observable(1, 2, 3) ++ Observable(ex)
    val o3Revocered = o3.recovered
    assert(o3Revocered.toBlockingObservable.toList === List(Failure(ex), Success(1), Success(2), Success(3)))

  }