message: Add #[should_panic] test
diff: @@ -41,3 +41,9 @@ fn entropy_rng() {
  fn num_cpus() {
  assert_eq!(num_cpus::get(), 1);
  }
  +
  +#[test]
  +#[should_panic]
  +fn do_panic() { // In large, friendly letters :)
  + panic!("Explicit panic from test!");
  +}
  