| 1 | ;;; emms-tests.el --- Test suite for EMMS core -*- lexical-binding: t; -*- |
| 2 | |
| 3 | ;; Copyright (C) 2023 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Author: Petteri Hintsanen <petterih@iki.fi> |
| 6 | |
| 7 | ;; This file is part of EMMS. |
| 8 | |
| 9 | ;; EMMS is free software; you can redistribute it and/or modify it |
| 10 | ;; under the terms of the GNU General Public License as published by |
| 11 | ;; the Free Software Foundation; either version 3, or (at your option) |
| 12 | ;; any later version. |
| 13 | |
| 14 | ;; EMMS is distributed in the hope that it will be useful, but WITHOUT |
| 15 | ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 16 | ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| 17 | ;; License for more details. |
| 18 | |
| 19 | ;; You should have received a copy of the GNU General Public License |
| 20 | ;; along with EMMS; see the file COPYING. If not, write to the Free |
| 21 | ;; Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
| 22 | ;; MA 02110-1301, USA. |
| 23 | |
| 24 | ;;; Code: |
| 25 | |
| 26 | (require 'emms) |
| 27 | (require 'ert) |
| 28 | |
| 29 | (ert-deftest emms-test-le-to-int () |
| 30 | (should (= (emms-le-to-int nil) 0)) |
| 31 | (should (= (emms-le-to-int [0]) 0)) |
| 32 | (should (= (emms-le-to-int [127]) 127)) |
| 33 | (should (= (emms-le-to-int [255]) 255)) |
| 34 | (should (= (emms-le-to-int [0 1]) 256)) |
| 35 | (should (= (emms-le-to-int [1 0]) 1)) |
| 36 | (should (= (emms-le-to-int [0 128]) 32768)) |
| 37 | (should (= (emms-le-to-int [1 2 4 8]) 134480385))) |
| 38 | |
| 39 | (ert-deftest emms-test-from-twos-complement () |
| 40 | (should (= (emms-from-twos-complement 0 8) 0)) |
| 41 | (should (= (emms-from-twos-complement 1 8) 1)) |
| 42 | (should (= (emms-from-twos-complement 127 8) 127)) |
| 43 | (should (= (emms-from-twos-complement 128 8) -128)) |
| 44 | (should (= (emms-from-twos-complement 129 8) -127)) |
| 45 | (should (= (emms-from-twos-complement 254 8) -2)) |
| 46 | (should (= (emms-from-twos-complement 255 8) -1)) |
| 47 | (should (= (emms-from-twos-complement 0 10) 0)) |
| 48 | (should (= (emms-from-twos-complement 511 10) 511)) |
| 49 | (should (= (emms-from-twos-complement 512 10) -512)) |
| 50 | (should (= (emms-from-twos-complement 1023 10) -1))) |
| 51 | |
| 52 | (ert-deftest emms-test-extract-bits () |
| 53 | (should (= (emms-extract-bits 128 7) 1)) |
| 54 | (should (= (emms-extract-bits 64 6 7) 1)) |
| 55 | (should (= (emms-extract-bits 128 6 7) 2)) |
| 56 | (should (= (emms-extract-bits 192 6 7) 3)) |
| 57 | (should (eq (emms-extract-bits 192 7 6) nil)) |
| 58 | (should (= (emms-extract-bits 128 32) 0)) |
| 59 | (should (= (emms-extract-bits 4294688772 21 31) 2047))) |
| 60 | |
| 61 | ;;; emms-tests.el ends here |