test/automated/subr-tests.el

   1 ;;; subr-tests.el --- Tests for subr.el
   2
   3 ;; Copyright (C) 2015 Free Software Foundation, Inc.
   4
   5 ;; Author: Oleh Krehel <ohwoeowho@gmail.com>
   6 ;; Keywords:
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;;
  26
  27 ;;; Code:
  28
  29 (require 'ert)
  30
  31 (ert-deftest let-when-compile ()
  32   ;; good case
  33   (should (equal (macroexpand '(let-when-compile ((foo (+ 2 3)))
  34                                 (setq bar (eval-when-compile (+ foo foo)))
  35                                 (setq boo (eval-when-compile (* foo foo)))))
  36                  '(progn
  37                    (setq bar (quote 10))
  38                    (setq boo (quote 25)))))
  39   ;; bad case: `eval-when-compile' omitted, byte compiler should catch this
  40   (should (equal (macroexpand
  41                   '(let-when-compile ((foo (+ 2 3)))
  42                     (setq bar (+ foo foo))
  43                     (setq boo (eval-when-compile (* foo foo)))))
  44                  '(progn
  45                    (setq bar (+ foo foo))
  46                    (setq boo (quote 25)))))
  47   ;; something practical
  48   (should (equal (macroexpand
  49                   '(let-when-compile ((keywords '("true" "false")))
  50                     (font-lock-add-keywords
  51                      'c++-mode
  52                      `((,(eval-when-compile
  53                            (format "\\<%s\\>" (regexp-opt keywords)))
  54                          0 font-lock-keyword-face)))))
  55                  '(font-lock-add-keywords
  56                    (quote c++-mode)
  57                    (list
  58                     (cons (quote
  59                            "\\<\\(?:\\(?:fals\\|tru\\)e\\)\\>")
  60                      (quote
  61                       (0 font-lock-keyword-face))))))))
  62
  63 (provide 'subr-tests)
  64 ;;; subr-tests.el ends here