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 (seq-sort #'string-lessp (css--property-values "float"))
  35           '("left" "none" "right")))
  36
  37   ;; The `list-style' property refers to several other properties.
  38   (should
  39    (equal (seq-sort #'string-lessp (css--property-values "list-style"))
  40           (seq-sort
  41            #'string-lessp
  42            (seq-uniq
  43             (append (css--property-values "list-style-type")
  44                     (css--property-values "list-style-position")
  45                     (css--property-values "list-style-image"))))))
  46
  47   ;; The `position' property is tricky because it's also the name of a
  48   ;; value class.
  49   (should
  50    (equal (seq-sort #'string-lessp (css--property-values "position"))
  51           '("absolute" "fixed" "relative" "static")))
  52
  53   ;; The `background-position' property should refer to the `position'
  54   ;; value class, not the property of the same name.
  55   (should
  56    (equal (css--property-values "background-position")
  57           (css--value-class-lookup 'position)))
  58
  59   ;; Check that the `color' property doesn't cause infinite recursion
  60   ;; because it refers to the value class of the same name.
  61   (should (= (length (css--property-values "color")) 147)))
  62
  63 (ert-deftest css-test-property-value-cache ()
  64   "Test that `css--property-value-cache' is in use."
  65   (should-not (gethash "word-wrap" css--property-value-cache))
  66   (let ((word-wrap-values (css--property-values "word-wrap")))
  67     (should (equal (gethash "word-wrap" css--property-value-cache)
  68                    word-wrap-values))))
  69
  70 (ert-deftest css-test-property-values-no-duplicates ()
  71   "Test that `css--property-values' returns no duplicates."
  72   ;; The `flex' property is prone to duplicate values; if they aren't
  73   ;; removed, it'll contain at least two instances of `auto'.
  74   (should
  75    (equal (seq-sort #'string-lessp (css--property-values "flex"))
  76           '("auto" "calc()" "content" "none"))))
  77
  78 (ert-deftest css-test-value-class-lookup ()
  79   (should
  80    (equal (seq-sort #'string-lessp (css--value-class-lookup 'position))
  81           '("bottom" "calc()" "center" "left" "right" "top"))))
  82
  83 ;;; Completion
  84
  85 (defun css-mode-tests--completions ()
  86   (let ((data (css-completion-at-point)))
  87     (all-completions (buffer-substring (nth 0 data) (nth 1 data))
  88                      (nth 2 data))))
  89
  90 (ert-deftest css-test-complete-bang-rule ()
  91   (with-temp-buffer
  92     (css-mode)
  93     (insert "body { left: 0 !")
  94     (let ((completions (css-mode-tests--completions)))
  95       (should (member "important" completions))
  96       ;; Don't include SCSS bang-rules
  97       (should-not (member "default" completions)))))
  98
  99 (ert-deftest scss-test-complete-bang-rule ()
 100   (with-temp-buffer
 101     (scss-mode)
 102     (insert "body { left: 0 !")
 103     (let ((completions (css-mode-tests--completions)))
 104       (should (member "important" completions))
 105       (should (member "default" completions)))))
 106
 107 (ert-deftest css-test-complete-property-value ()
 108   (with-temp-buffer
 109     (css-mode)
 110     (insert "body { position: ")
 111     (let ((completions (css-mode-tests--completions)))
 112       (should
 113        (equal (seq-sort #'string-lessp completions)
 114               '("absolute" "fixed" "inherit" "relative" "static"))))))
 115
 116 (ert-deftest css-test-complete-pseudo-class ()
 117   (with-temp-buffer
 118     (css-mode)
 119     (insert "body:a")
 120     (let ((completions (css-mode-tests--completions)))
 121       (should (member "active" completions))
 122       (should-not (member "disabled" completions))
 123       ;; Don't include pseudo-elements
 124       (should-not (member "after" completions)))))
 125
 126 (ert-deftest css-test-complete-pseudo-element ()
 127   (with-temp-buffer
 128     (css-mode)
 129     (insert "body::a")
 130     (let ((completions (css-mode-tests--completions)))
 131       (should (member "after" completions))
 132       (should-not (member "disabled" completions))
 133       ;; Don't include pseudo-classes
 134       (should-not (member "active" completions)))))
 135
 136 (ert-deftest css-test-complete-at-rule ()
 137   (with-temp-buffer
 138     (css-mode)
 139     (insert "@m")
 140     (let ((completions (css-mode-tests--completions)))
 141       (should (member "media" completions))
 142       (should-not (member "keyframes" completions))
 143       ;; Don't include SCSS at-rules
 144       (should-not (member "mixin" completions)))))
 145
 146 (ert-deftest scss-test-complete-at-rule ()
 147   (with-temp-buffer
 148     (scss-mode)
 149     (insert "@m")
 150     (let ((completions (css-mode-tests--completions)))
 151       (should (member "media" completions))
 152       (should-not (member "keyframes" completions))
 153       (should (member "mixin" completions)))))
 154
 155 (ert-deftest css-test-complete-property ()
 156   (with-temp-buffer
 157     (css-mode)
 158     (insert "body { f")
 159     (let ((completions (css-mode-tests--completions)))
 160       (should (member "filter" completions))
 161       (should-not (member "position" completions)))))
 162
 163 (ert-deftest css-test-complete-selector ()
 164   (with-temp-buffer
 165     (css-mode)
 166     (insert "b")
 167     (let ((completions (css-mode-tests--completions)))
 168       (should (member "body" completions))
 169       (should-not (member "article" completions)))))
 170
 171 (ert-deftest css-test-complete-nested-selector ()
 172   (with-temp-buffer
 173     (css-mode)
 174     (insert "body {")
 175     (let ((completions (css-mode-tests--completions)))
 176       (should-not (member "body" completions)))))
 177
 178 (ert-deftest scss-test-complete-nested-selector ()
 179   (with-temp-buffer
 180     (scss-mode)
 181     (insert "body { b")
 182     (let ((completions (css-mode-tests--completions)))
 183       (should (member "body" completions))
 184       (should-not (member "article" completions)))))
 185
 186 (provide 'css-mode-tests)
 187 ;;; css-mode-tests.el ends here