@Test
  public void should_not_display_any_movie_when_none_contain_user_filter_string() throws Exception {
    // when
    availableMoviesScreen.userEntersFilterText("some unknown movie");

    // then
    availableMoviesScreen.displaysNoMovies();
  }
  @Test
  public void should_only_display_one_movie_which_title_contain_user_filter_string()
      throws Exception {
    // when
    availableMoviesScreen.userEntersFilterText("dark knig");

    // then
    availableMoviesScreen.displaysMovies("The Dark Knight Rises");
  }