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typesetting/xenomorph/xenomorph/test/reserved-test.rkt

33 lines
794 B
Racket

#lang racket/base
(require "racket.rkt")
#|
approximates
https://github.com/mbutterick/restructure/blob/master/test/Reserved.coffee
|#
;describe 'Reserved', ->
; it 'should have a default count of 1', ->
(check-equal? (size (+Reserved uint8)) 1)
; it 'should allow custom counts and types', ->
(check-equal? (size (+Reserved uint16be 10)) 20)
; it 'should decode', ->
(parameterize ([current-input-port (open-input-bytes (bytes 0 0))])
(define reserved (+Reserved uint16be))
(check-equal? (decode reserved) (void))
(check-equal? (pos (current-input-port)) 2))
; it 'should encode', (done) ->
(parameterize ([current-output-port (open-output-bytes)])
(define reserved (+Reserved uint16be))
(encode reserved #f)
(check-equal? (dump (current-output-port)) (bytes 0 0)))