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;;; emms-info-ogg-tests.el --- Test suite for emms-info-ogg -*- lexical-binding: t; -*-
;; Copyright (C) 2023 Free Software Foundation, Inc.
;; Author: Petteri Hintsanen <petterih@iki.fi>
;; This file is part of EMMS.
;; EMMS 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, or (at your option)
;; any later version.
;; EMMS 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 EMMS; see the file COPYING. If not, write to the Free
;; Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
;; MA 02110-1301, USA.
;;; Code:
(require 'emms)
(require 'emms-info-native-ogg)
(require 'ert)
(ert-deftest emms-test-ogg-decode-page ()
(let* ((bytes "\x4f\x67\x67\x53\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x86\xd1\x9e\x17\x00\x00\x00\x00\x35\x52\xfb\x88\x01\x1e\x01\x76\x6f\x72\x62\x69\x73\x00\x00\x00\x00\x01\x44\xac\x00\x00\x00\x00\x00\x00\x80\x38\x01\x00\x00\x00\x00\x00\xb8\x01")
(page (bindat-unpack emms-info-native-ogg--page-bindat-spec bytes)))
(should (= (emms-info-native-ogg--num-packets page) 1))
(should (= (bindat-length emms-info-native-ogg--page-bindat-spec page) 58))
(should (equal (bindat-get-field page 'payload)
"\x01\x76\x6f\x72\x62\x69\x73\x00\x00\x00\x00\x01\x44\xac\x00\x00\x00\x00\x00\x00\x80\x38\x01\x00\x00\x00\x00\x00\xb8\x01"))))
(ert-deftest emms-test-ogg-decode-vorbis-headers ()
"Test `emms-info-ogg--decode-headers' with Vorbis data."
(let ((bytes "\x01\x76\x6f\x72\x62\x69\x73\x00\x00\x00\x00\x01\x44\xac\x00\x00\x00\x00\x00\x00\x80\x38\x01\x00\x00\x00\x00\x00\xb8\x01\x03\x76\x6f\x72\x62\x69\x73\x34\x00\x00\x00\x58\x69\x70\x68\x2e\x4f\x72\x67\x20\x6c\x69\x62\x56\x6f\x72\x62\x69\x73\x20\x49\x20\x32\x30\x32\x30\x30\x37\x30\x34\x20\x28\x52\x65\x64\x75\x63\x69\x6e\x67\x20\x45\x6e\x76\x69\x72\x6f\x6e\x6d\x65\x6e\x74\x29\x02\x00\x00\x00\x07\x00\x00\x00\x66\x6f\x6f\x3d\x62\x61\x72\x1b\x00\x00\x00\x4b\x65\x79\x3d\xce\x9f\xe1\xbd\x90\xcf\x87\xe1\xbd\xb6\x20\xce\xa4\xce\xb1\xe1\xbd\x90\xcf\x84\xe1\xbd\xb0\x01"))
(should
(emms-equal-lists
(emms-info-native-ogg--decode-headers bytes 'vorbis)
'((identification-header
(packet-type . 1)
(vorbis . "vorbis")
(vorbis-version . 0)
(channel-count . 1)
(sample-rate . 44100)
(bitrate-maximum . 0)
(bitrate-nominal . 80000)
(bitrate-minimum . 0)
(blocksize . 184)
(framing-flag . 1))
(comment-header
(packet-type . 3)
(vorbis . "vorbis")
(vendor-length . 52)
(vendor-string . "Xiph.Org libVorbis I 20200704 (Reducing Environment)")
(user-comments-list-length . 2)
(user-comments
((length . 7)
(user-comment . "foo=bar"))
((length . 27)
(user-comment . "Key=\316\237\341\275\220\317\207\341\275\266 \316\244\316\261\341\275\220\317\204\341\275\260")))
(framing-bit . 1)))))))
(ert-deftest emms-test-ogg-decode-opus-headers ()
"Test `emms-info-ogg--decode-headers' with Opus data."
(let ((bytes "\x4f\x70\x75\x73\x48\x65\x61\x64\x01\x01\x38\x01\x44\xac\x00\x00\x00\x00\x00\x4f\x70\x75\x73\x54\x61\x67\x73\x0d\x00\x00\x00\x6c\x69\x62\x6f\x70\x75\x73\x20\x31\x2e\x33\x2e\x31\x03\x00\x00\x00\x26\x00\x00\x00\x45\x4e\x43\x4f\x44\x45\x52\x3d\x6f\x70\x75\x73\x65\x6e\x63\x20\x66\x72\x6f\x6d\x20\x6f\x70\x75\x73\x2d\x74\x6f\x6f\x6c\x73\x20\x30\x2e\x31\x2e\x31\x30\x07\x00\x00\x00\x66\x6f\x6f\x3d\x62\x61\x72\x1b\x00\x00\x00\x4b\x65\x79\x3d\xce\x9f\xe1\xbd\x90\xcf\x87\xe1\xbd\xb6\x20\xce\xa4\xce\xb1\xe1\xbd\x90\xcf\x84\xe1\xbd\xb0"))
(emms-equal-lists
(emms-info-native-ogg--decode-headers bytes 'opus)
'((identification-header
(opus-head . "OpusHead")
(opus-version . 1)
(channel-count . 1)
(pre-skip . 312)
(sample-rate . 44100)
(output-gain . 0)
(channel-mapping-family . 0))
(comment-header
(opus-tags . "OpusTags")
(vendor-length . 13)
(vendor-string . "libopus 1.3.1")
(user-comments-list-length . 3)
(user-comments
((length . 38)
(user-comment . "ENCODER=opusenc from opus-tools 0.1.10"))
((length . 7)
(user-comment . "foo=bar"))
((length . 27)
(user-comment . "Key=\316\237\341\275\220\317\207\341\275\266 \316\244\316\261\341\275\220\317\204\341\275\260"))))))))
(defun emms-test-ogg--decode-last-page (bytes)
"Call `emms-info-ogg--decode-last-page' with BYTES input.
This is a helper function for `emms-test-ogg-decode-last-page'."
(with-temp-buffer
(set-buffer-multibyte nil)
(insert (concat bytes))
(emms-info-native-ogg--decode-last-page)))
(ert-deftest emms-test-ogg-decode-last-page()
(let ((valid "\x01\x02\x03\x04\x4f\x67\x67\x53\x00\x04\x00\x24\x08\x01\x00\x00\x00\x00\x9c\x39\x6e\x47\x40\x08\x00\x00\x19\x4e\xac\xa3\x01\x0a\x4f\x67\x67\x53\x31\x32\x33\x34\x35\x36")
(notlast "\x01\x02\x03\x04\x4f\x67\x67\x53\x00\x00\x00\x24\x08\x01\x00\x00\x00\x00\x9c\x39\x6e\x47\x40\x08\x00\x00\x19\x4e\xac\xa3\x01\x0a\x4f\x67\x67\x53\x31\x32\x33\x34\x35\x36")
(invalid "\x01\x02\x03\x04\x4f\x67\x67\x53\x00\x04\x00\x24\x08\x01\x00\x00\x00\x00\x9c\x39\x6e\x47\x40\x08\x00\x00\x01\x02\x03\x04\x01\x0a\x4f\x67\x67\x53\x31\x32\x33\x34\x35\x36")
(valid-result
(quote
((capture-pattern . "OggS")
(stream-structure-version . 0)
(header-type-flag . 4)
(granule-position . 17310720)
(stream-serial-number . 1198406044)
(page-sequence-no . 2112)
(page-checksum . 2745978393)
(page-segments . 1)
(segment-table . [10])
(payload . "OggS123456")))))
(unless (eval-when-compile (fboundp 'bindat-type))
(push (cons 'granule-position-bytes [0 36 8 1 0 0 0 0]) valid-result))
(should (emms-equal-lists (emms-test-ogg--decode-last-page valid)
valid-result))
(should (equal (emms-test-ogg--decode-last-page notlast) nil))
(should (equal (emms-test-ogg--decode-last-page invalid) nil))))
(ert-deftest emms-test-ogg-calculate-checksum ()
(let ((bytes "\x01\x02\x03\x04\x4f\x67\x67\x53\x00\x04\x00\x24\x08\x01\x00\x00\x00\x00\x9c\x39\x6e\x47\x40\x08\x00\x00\x19\x4e\xac\xa3\x01\x0a\x4f\x67\x67\x53\x31\x32\x33\x34\x35\x36"))
(should (= (emms-info-native-ogg--checksum bytes) 445885580))))
;;; emms-info-native-ogg-tests.el ends here
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