mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-11-18 12:47:33 -05:00
3597c0396b
* guix/lzlib.scm (%compression-levels): Splice the rest of each element.
(dictionary-size+match-length-limit): New procedure.
(make-lzip-output-port, make-lzip-input-port/compressed): Use it.
* tests/lzlib.scm ("Bytevector of size relative to Lzip internal buffers (2 * dictionary)"):
Use 'dictionary-size+match-length-limit' instead of 'assoc-ref'.
120 lines
4.6 KiB
Scheme
120 lines
4.6 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
|
|
;;;
|
|
;;; This file is part of GNU Guix.
|
|
;;;
|
|
;;; GNU Guix is free software; you can redistribute it and/or modify it
|
|
;;; under the terms of the GNU General Public License as published by
|
|
;;; the Free Software Foundation; either version 3 of the License, or (at
|
|
;;; your option) any later version.
|
|
;;;
|
|
;;; GNU Guix is distributed in the hope that it will be useful, but
|
|
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;;; GNU General Public License for more details.
|
|
;;;
|
|
;;; You should have received a copy of the GNU General Public License
|
|
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
(define-module (test-lzlib)
|
|
#:use-module (guix lzlib)
|
|
#:use-module (guix tests)
|
|
#:use-module (srfi srfi-64)
|
|
#:use-module (rnrs bytevectors)
|
|
#:use-module (rnrs io ports)
|
|
#:use-module (ice-9 match))
|
|
|
|
;; Test the (guix lzlib) module.
|
|
|
|
(define-syntax-rule (test-assert* description exp)
|
|
(begin
|
|
(unless (lzlib-available?)
|
|
(test-skip 1))
|
|
(test-assert description exp)))
|
|
|
|
(test-begin "lzlib")
|
|
|
|
(define (compress-and-decompress data)
|
|
"DATA must be a bytevector."
|
|
(pk "Uncompressed bytes:" (bytevector-length data))
|
|
(match (pipe)
|
|
((parent . child)
|
|
(match (primitive-fork)
|
|
(0 ;compress
|
|
(dynamic-wind
|
|
(const #t)
|
|
(lambda ()
|
|
(close-port parent)
|
|
(call-with-lzip-output-port child
|
|
(lambda (port)
|
|
(put-bytevector port data))))
|
|
(lambda ()
|
|
(primitive-exit 0))))
|
|
(pid ;decompress
|
|
(begin
|
|
(close-port child)
|
|
(let ((received (call-with-lzip-input-port parent
|
|
(lambda (port)
|
|
(get-bytevector-all port)))))
|
|
(match (waitpid pid)
|
|
((_ . status)
|
|
(pk "Status" status)
|
|
(pk "Length data" (bytevector-length data) "received" (bytevector-length received))
|
|
;; The following loop is a debug helper.
|
|
(let loop ((i 0))
|
|
(if (and (< i (bytevector-length received))
|
|
(= (bytevector-u8-ref received i)
|
|
(bytevector-u8-ref data i)))
|
|
(loop (+ 1 i))
|
|
(pk "First diff at index" i)))
|
|
(and (zero? status)
|
|
(port-closed? parent)
|
|
(bytevector=? received data)))))))))))
|
|
|
|
(test-assert* "null bytevector"
|
|
(compress-and-decompress (make-bytevector (+ (random 100000)
|
|
(* 20 1024)))))
|
|
|
|
(test-assert* "random bytevector"
|
|
(compress-and-decompress (random-bytevector (+ (random 100000)
|
|
(* 20 1024)))))
|
|
(test-assert* "small bytevector"
|
|
(compress-and-decompress (random-bytevector 127)))
|
|
|
|
(test-assert* "1 bytevector"
|
|
(compress-and-decompress (random-bytevector 1)))
|
|
|
|
(test-assert* "Bytevector of size relative to Lzip internal buffers (2 * dictionary)"
|
|
(compress-and-decompress
|
|
(random-bytevector
|
|
(* 2 (dictionary-size+match-length-limit %default-compression-level)))))
|
|
|
|
(test-assert* "Bytevector of size relative to Lzip internal buffers (64KiB)"
|
|
(compress-and-decompress (random-bytevector (* 64 1024))))
|
|
|
|
(test-assert* "Bytevector of size relative to Lzip internal buffers (64KiB-1)"
|
|
(compress-and-decompress (random-bytevector (1- (* 64 1024)))))
|
|
|
|
(test-assert* "Bytevector of size relative to Lzip internal buffers (64KiB+1)"
|
|
(compress-and-decompress (random-bytevector (1+ (* 64 1024)))))
|
|
|
|
(test-assert* "Bytevector of size relative to Lzip internal buffers (1MiB)"
|
|
(compress-and-decompress (random-bytevector (* 1024 1024))))
|
|
|
|
(test-assert* "Bytevector of size relative to Lzip internal buffers (1MiB-1)"
|
|
(compress-and-decompress (random-bytevector (1- (* 1024 1024)))))
|
|
|
|
(test-assert* "Bytevector of size relative to Lzip internal buffers (1MiB+1)"
|
|
(compress-and-decompress (random-bytevector (1+ (* 1024 1024)))))
|
|
|
|
(test-assert* "make-lzip-input-port/compressed"
|
|
(let* ((len (pk 'len (+ 10 (random 4000 %seed))))
|
|
(data (random-bytevector len))
|
|
(compressed (make-lzip-input-port/compressed
|
|
(open-bytevector-input-port data)))
|
|
(result (call-with-lzip-input-port compressed
|
|
get-bytevector-all)))
|
|
(pk (bytevector-length result) (bytevector-length data))
|
|
(bytevector=? result data)))
|
|
|
|
(test-end)
|