### Question:
MessageDispatcher { public boolean forget(String messageId) { MessagePromise messagePromise = cache.getIfPresent(messageId); if (messagePromise != null) { cache.invalidate(messageId); return true; } return false; } @Inject  MessageDispatcher(Cache<String, MessagePromise> dispatch, @Named("frPush") Debug debug); void handle(String messageId, JsonValue content); MessagePromise expect(String messageId, Set<Predicate> predicates); boolean forget(String messageId);  }### Answer:
@Test public void shouldReturnFalseForgetWhenNotExpected() { boolean result = messageDispatcher.forget("notexpectdForget"); assertThat(result).isFalse(); }