@Test
public void testGrabberCollection() {

  UpperCaseGrabber grbU = new UpperCaseGrabber();
  testCollection(new GrabberCollection(getCollectionLow(intended_size), grbU), getCollection(intended_size), getCollection(intended_size - 5));
  testCollection(new GrabberCollection(getCollectionLow(intended_size), grbU, getDeciders(intended_size)), getCollection(intended_size), getCollection(intended_size - 5));
  intended_size = 10;
}