code.delx.au - gnu-emacs/blob - test/lisp/textmodes/css-mode-tests.el

   1 ;;; css-mode-tests.el --- Test suite for CSS mode  -*- lexical-binding: t; -*-
   2
   3 ;; Copyright (C) 2016 Free Software Foundation, Inc.
   4
   5 ;; Author: Simen Heggestøyl <simenheg@gmail.com>
   6 ;; Keywords: internal
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; This program 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 ;; This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;;; Code:
  26
  27 (require 'css-mode)
  28 (require 'ert)
  29 (require 'seq)
  30
  31 (ert-deftest css-test-property-values ()
  32   ;; The `float' property has a flat value list.
  33   (should
  34    (equal (sort (css--property-values "float") #'string-lessp)
  35           '("left" "none" "right")))
  36
  37   ;; The `list-style' property refers to several other properties.
  38   (should
  39    (equal (sort (css--property-values "list-style") #'string-lessp)
  40           (sort (seq-uniq
  41                  (append (css--property-values "list-style-type")
  42                          (css--property-values "list-style-position")
  43                          (css--property-values "list-style-image")))
  44                 #'string-lessp)))
  45
  46   ;; The `position' property is tricky because it's also the name of a
  47   ;; value class.
  48   (should
  49    (equal (sort (css--property-values "position") #'string-lessp)
  50           '("absolute" "fixed" "relative" "static")))
  51
  52   ;; The `background-position' property should refer to the `position'
  53   ;; value class, not the property of the same name.
  54   (should
  55    (equal (css--property-values "background-position")
  56           (css--value-class-lookup 'position)))
  57
  58   ;; Check that the `color' property doesn't cause infinite recursion
  59   ;; because it refers to the value class of the same name.
  60   (should (= (length (css--property-values "color")) 18)))
  61
  62 (ert-deftest css-test-property-value-cache ()
  63   "Test that `css--property-value-cache' is in use."
  64   (should-not (gethash "word-wrap" css--property-value-cache))
  65   (let ((word-wrap-values (css--property-values "word-wrap")))
  66     (should (equal (gethash "word-wrap" css--property-value-cache)
  67                    word-wrap-values))))
  68
  69 (ert-deftest css-test-property-values-no-duplicates ()
  70   "Test that `css--property-values' returns no duplicates."
  71   ;; The `flex' property is prone to duplicate values; if they aren't
  72   ;; removed, it'll contain at least two instances of `auto'.
  73   (should
  74    (equal (sort (css--property-values "flex") #'string-lessp)
  75           '("auto" "calc()" "content" "none"))))
  76
  77 (ert-deftest css-test-value-class-lookup ()
  78   (should
  79    (equal (sort (css--value-class-lookup 'position) #'string-lessp)
  80           '("bottom" "calc()" "center" "left" "right" "top"))))
  81
  82 (provide 'css-mode-tests)
  83 ;;; css-mode-tests.el ends here