[noise] Test vector format

[Alex]

On Sat, 9 Apr 2016 12:40:46 -0700
Trevor Perrin <trevp at trevp.net> wrote:

> Not sure I follow.  I think there's two cases for processing a
> "payload"/"ciphertext" test element:
> 
> Assuming the test framework manages two HandshakeStates, A and B, for
> a non-error case you can test:
> 
>  - "payload -> A.writeMessage() -> "ciphertext"
>  - "ciphertext" -> B.readMessage() -> "payload"
> 
> For the error case you only test:
> 
>  - "ciphertext" -> B -> ERROR
> 
> So I don't see why you'd need the "payload" in the error case?
> 

Is it safe to say that there can be only one failure per vector?

Is it also safe to say that, if there is a failure, it must be the last
message in the "messages" array?

-- 
Alex