You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.9 KiB
Racket
60 lines
1.9 KiB
Racket
#lang racket/base
|
|
(require rackunit
|
|
sugar/unstable/dict
|
|
"../buffer.rkt"
|
|
"../number.rkt"
|
|
"../helper.rkt")
|
|
|
|
#|
|
|
approximates
|
|
https://github.com/mbutterick/restructure/blob/master/test/Buffer.coffee
|
|
|#
|
|
|
|
(test-case
|
|
"buffer should decode"
|
|
(parameterize ([current-input-port (open-input-bytes (bytes #xab #xff #x1f #xb6))])
|
|
(define buf (+xbuffer 2))
|
|
(check-equal? (decode buf) (bytes #xab #xff))
|
|
(check-equal? (decode buf) (bytes #x1f #xb6))))
|
|
|
|
(test-case
|
|
"buffer should decode with post-decode"
|
|
(parameterize ([current-input-port (open-input-bytes (bytes #xab #xff #x1f #xb6))])
|
|
(define buf (+xbuffer 2))
|
|
(set-post-decode! buf (λ (bs) (bytes 1 2)))
|
|
(check-equal? (decode buf) (bytes 1 2))
|
|
(check-equal? (decode buf) (bytes 1 2))))
|
|
|
|
(test-case
|
|
"buffer should decode with parent key length"
|
|
(parameterize ([current-input-port (open-input-bytes (bytes #xab #xff #x1f #xb6))])
|
|
(define buf (+xbuffer 'len))
|
|
(check-equal? (decode buf #:parent (hash 'len 3)) (bytes #xab #xff #x1f))
|
|
(check-equal? (decode buf #:parent (hash 'len 1)) (bytes #xb6))))
|
|
|
|
(test-case
|
|
"size should return size"
|
|
(check-equal? (size (+xbuffer 2) (bytes #xab #xff)) 2))
|
|
|
|
(test-case
|
|
"size should use defined length if no value given"
|
|
(check-equal? (size (+xbuffer 10)) 10))
|
|
|
|
(test-case
|
|
"encode should encode"
|
|
(let ([buf (+xbuffer 2)])
|
|
(check-equal? (bytes-append
|
|
(encode buf (bytes #xab #xff) #f)
|
|
(encode buf (bytes #x1f #xb6) #f)) (bytes #xab #xff #x1f #xb6))))
|
|
|
|
(test-case
|
|
"encode should encode with pre-encode"
|
|
(let ([buf (+xbuffer 2)])
|
|
(set-pre-encode! buf (λ (bs) (bytes 1 2)))
|
|
(check-equal? (bytes-append
|
|
(encode buf (bytes #xab #xff) #f)
|
|
(encode buf (bytes #x1f #xb6) #f)) (bytes 1 2 1 2))))
|
|
|
|
(test-case
|
|
"encode should encode length before buffer"
|
|
(check-equal? (encode (+xbuffer uint8) (bytes #xab #xff) #f) (bytes 2 #xab #xff))) |