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;; This file is part of eris-cl.
;; Copyright (C) 2022 Piotr Szarmański
;; eris-cl is free software: you can redistribute it and/or modify it under the
;; terms of the GNU Lesser General Public License as published by the Free
;; Software Foundation, either version 3 of the License, or (at your option) any
;; later version.
;; eris-cl 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
;; eris-cl. If not, see <https://www.gnu.org/licenses/>.
(in-package :eris/test)
(def-suite* encoding-tests :in eris-tests)
(defmacro check-urn (data block-size urn &key (secret null-secret))
`(let ((urn ,urn)
(vector-encode (read-capability-to-urn
(eris-encode ,data
,block-size
(lambda (block ref) (declare (ignore ref)) block)
:secret ,secret)))
(stream-encode (read-capability-to-urn
(with-octet-input-stream (stream ,data)
(eris-encode stream
,block-size
(lambda (block ref) (declare (ignore ref)) block)
:secret ,secret)))))
(is (equalp vector-encode urn))
(is (equalp stream-encode urn))))
(test hello-world
(check-urn (base32-to-bytes-unpadded "JBSWY3DPEB3W64TMMQQQ") 1024
"urn:eris:BIAD77QDJMFAKZYH2DXBUZYAP3MXZ3DJZVFYQ5DFWC6T65WSFCU5S2IT4YZGJ7AC4SYQMP2DM2ANS2ZTCP3DJJIRV733CRAAHOSWIYZM3M"))
(test empty-stream
(check-urn (serapeum:make-octet-vector 0) 1024
"urn:eris:BIADFUKDPYKJNLGCVSIIDI3FVKND7MO5AGOCXBK2C4ITT5MAL4LSCZF62B4PDOFQCLLNL7AXXSJFGINUYXVGVTDCQ2V7S7W5S234WFXCJ4")
(check-urn (serapeum:make-octet-vector 0) eris:32kib
"urn:eris:B4AC3MKL2BYR3E2WPMY2QRA6QZBLY4VNWJEBTSK5KWD66BRIT2EXVQVWY6TWVKJCZLC66RE3T2PKWDU3TBAKZZZIZRBTMP6BSOPE4CRXII"))
;; simple gray stream class for this particular construction.
(defclass null-stream (fundamental-binary-input-stream)
((counter :initform 0 :accessor counter)
(max-counter :initarg :max-counter)))
(defmethod stream-read-sequence ((stream null-stream) seq start end &key)
(with-slots (counter max-counter) stream
(if (eql counter max-counter)
0
(let ((bytes (if end (- end start) (- (length seq) start))))
(replace seq (make-array bytes :element-type '(unsigned-byte 8) :initial-element 0) :start1 start :end1 end)
(setf counter (+ bytes counter))
bytes))))
(defmacro large-content-test (key block-size urn length)
`(let* ((stream (make-instance 'null-stream :max-counter ,length))
(chacha-stream (make-encrypting-stream stream
:chacha
:stream
(ironclad:digest-sequence
:blake2/256
,key)
:initialization-vector (make-array 8 :element-type '(unsigned-byte 8) :initial-element 0)
:direction :input)))
(let ((read-capability (eris-encode chacha-stream ,block-size (lambda (block ref) (declare (ignore ref)) block))))
(is (equalp (read-capability-to-urn read-capability)
,urn)))))
(test 100MiB
(large-content-test (make-array 24 :element-type '(unsigned-byte 8)
:initial-contents
#(49 48 48 77 105 66 32 40 98 108 111 99 107 32 115 105 122 101 32 49 75 105 66 41))
1024
"urn:eris:BIC6F5EKY2PMXS2VNOKPD3AJGKTQBD3EXSCSLZIENXAXBM7PCTH2TCMF5OKJWAN36N4DFO6JPFZBR3MS7ECOGDYDERIJJ4N5KAQSZS67YY"
104857600))
(test 1GiB
(large-content-test (make-array 23 :element-type '(unsigned-byte 8)
:initial-contents
#(49 71 105 66 32 40 98 108 111 99 107 32 115 105 122 101 32 51 50 75 105 66 41))
32kib
"urn:eris:B4BL4DKSEOPGMYS2CU2OFNYCH4BGQT774GXKGURLFO5FDXAQQPJGJ35AZR3PEK6CVCV74FVTAXHRSWLUUNYYA46ZPOPDOV2M5NVLBETWVI"
1073741824))
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