### Question:
AnyoneKitPermissions extends KitPermissions { @Override public Message unavailabilityMessage(KitChallenger challenger) { throw new KitAvailabilityException("This kit is available to anyone"); }  @Override boolean isAvailableTo(KitChallenger challenger); @Override Message unavailabilityMessage(KitChallenger challenger);  }### Answer:
@Test(expected = KitAvailabilityException.class) public void unavailabilityMessage() { AnyoneKitPermissions anyoneKitPermissions = new AnyoneKitPermissions(); anyoneKitPermissions.unavailabilityMessage(mock(KitChallenger.class)); }