@Then("^the viewer current interest will be (\\d+)$")
 public void theViewerCurrentInterestWillBe(int expectedRating) throws Throwable {
   assertEquals(viewer.getCurrentInterest(), expectedRating);
 }
 @When("^the viewer has the horror fan behaviour$")
 public void theViewerHasTheHorrorFanBehaviour() throws Throwable {
   viewer.setViewingBehaviour(behaviour);
 }