lib/tests/cssslib_test.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * This file contains the unittests for the css optimiser in csslib.php
  19  *
  20  * @package   core_css
  21  * @category  phpunit
  22  * @copyright 2012 Sam Hemelryk
  23  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 defined('MOODLE_INTERNAL') || die();
  27
  28 global $CFG;
  29 require_once($CFG->libdir . '/csslib.php');
  30
  31
  32 /**
  33  * CSS optimiser test class
  34  *
  35  * @package core_css
  36  * @category css
  37  * @copyright 2012 Sam Hemelryk
  38  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  39  */
  40 class css_optimiser_testcase extends advanced_testcase {
  41
  42     protected $optimiser;
  43
  44     public function get_optimiser() {
  45         if (!$this->optimiser instanceof css_optimiser) {
  46             $this->optimiser = new css_optimiser;
  47         }
  48         return $this->optimiser;
  49     }
  50
  51     /**
  52      * Sets up the test class
  53      */
  54     protected function setUp() {
  55         global $CFG;
  56         parent::setUp();
  57         // We need to disable these if they are enabled to that we can predict
  58         // the output.
  59         $CFG->cssoptimiserstats = false;
  60         $CFG->cssoptimiserpretty = false;
  61
  62         $this->resetAfterTest(true);
  63     }
  64
  65     /**
  66      * Test the process method
  67      */
  68     public function test_process() {
  69         $optimiser = new css_optimiser;
  70
  71         $this->try_broken_css_found_in_moodle();
  72         $this->try_invalid_css_handling();
  73         $this->try_bulk_processing();
  74         $this->try_break_things();
  75         $this->try_media_rules();
  76         $this->try_keyframe_css_animation();
  77     }
  78
  79     /**
  80      * Background colour tests
  81      *
  82      * When testing background styles it is important to understand how the background shorthand works.
  83      * background shorthand allows the following styles to be specified in a single "background" declaration:
  84      *   - background-color
  85      *   - background-image
  86      *   - background-repeat
  87      *   - background-attachment
  88      *   - background-position
  89      *
  90      * If the background shorthand is used it can contain one or more of those (preferabbly in that order).
  91      * Important it does not need to contain all of them.
  92      * However even if it doesn't contain values for all styles all of the styles will be affected.
  93      * If a style is missed from the shorthand background style but has an existing value in the rule then the existing value
  94      * is cleared.
  95      *
  96      * For example:
  97      *      .test {background: url(\'test.png\');background: bottom right;background:#123456;}
  98      * will result in:
  99      *      .test {background:#123456;}
 100      *
 101      * And:
 102      *      .test {background-image: url(\'test.png\');background:#123456;}
 103      * will result in:
 104      *      .test {background:#123456;}
 105      *
 106      * @param css_optimiser $optimiser
 107      */
 108     public function test_background() {
 109         $optimiser = $this->get_optimiser();
 110
 111         $cssin = '.test {background-color: #123456;}';
 112         $cssout = '.test{background-color:#123456;}';
 113         $this->assertEquals($cssout, $optimiser->process($cssin));
 114
 115         $cssin = '.test {background: #123456;}';
 116         $cssout = '.test{background:#123456;}';
 117         $this->assertEquals($cssout, $optimiser->process($cssin));
 118
 119         $cssin = '.test {background-image: url(\'test.png\');}';
 120         $cssout = '.test{background-image:url(\'test.png\');}';
 121         $this->assertEquals($cssout, $optimiser->process($cssin));
 122
 123         $cssin = '.test {background: #123456 url(\'test.png\') no-repeat top left;}';
 124         $cssout = '.test{background:#123456 url(\'test.png\') no-repeat top left;}';
 125         $this->assertEquals($cssout, $optimiser->process($cssin));
 126
 127         // Check out this for madness, background position and background-repeat have been reversed
 128         $cssin = '.test {background: #123456 url(\'test.png\') center no-repeat;}';
 129         $cssout = '.test{background:#123456 url(\'test.png\') no-repeat center;}';
 130         $this->assertEquals($cssout, $optimiser->process($cssin));
 131
 132         $cssin = '.test {background: url(\'test.png\') no-repeat top left;}.test{background-position: bottom right}.test {background-color:#123456;}';
 133         $cssout = '.test{background:#123456 url(\'test.png\') no-repeat bottom right;}';
 134         $this->assertEquals($cssout, $optimiser->process($cssin));
 135
 136         $cssin = '.test {background: url(   \'test.png\'    )}.test{background: bottom right}.test {background:#123456;}';
 137         $cssout = '.test{background:#123456;}';
 138         $this->assertEquals($cssout, $optimiser->process($cssin));
 139
 140         $cssin = '.test {background-image: url(\'test.png\');background:#123456;}';
 141         $cssout = '.test{background:#123456;}';
 142         $this->assertEquals($cssout, $optimiser->process($cssin));
 143
 144         $cssin = '.test {background-color: #123456;background-repeat: repeat-x; background-position: 100% 0%;}';
 145         $cssout = '.test{background-color:#123456;background-repeat:repeat-x;background-position:100% 0%;}';
 146         $this->assertEquals($cssout, $optimiser->process($cssin));
 147
 148         $cssin = '.tree_item.branch {background-image: url([[pix:t/expanded]]);background-position: 0 10%;background-repeat: no-repeat;}
 149                   .tree_item.branch.navigation_node {background-image:none;padding-left:0;}';
 150         $cssout = '.tree_item.branch{background-image:url([[pix:t/expanded]]);background-position:0 10%;background-repeat:no-repeat;} .tree_item.branch.navigation_node{background-image:none;padding-left:0;}';
 151         $this->assertEquals($cssout, $optimiser->process($cssin));
 152
 153         $cssin = '#nextLink{background:url(data:image/gif;base64,AAAA);}';
 154         $cssout = '#nextLink{background:url(data:image/gif;base64,AAAA);}';
 155         $this->assertEquals($cssout, $optimiser->process($cssin));
 156
 157         $cssin = '#nextLink{background-image:url(data:image/gif;base64,AAAA);}';
 158         $cssout = '#nextLink{background-image:url(data:image/gif;base64,AAAA);}';
 159         $this->assertEquals($cssout, $optimiser->process($cssin));
 160
 161         $cssin = '.test {background: #123456 url(data:image/gif;base64,AAAA) no-repeat top left;}';
 162         $cssout = '.test{background:#123456 url(data:image/gif;base64,AAAA) no-repeat top left;}';
 163         $this->assertEquals($cssout, $optimiser->process($cssin));
 164
 165         $cssin = '#test {background-image:none;background-position:right center;background-repeat:no-repeat;}';
 166         $cssout = '#test{background-image:none;background-position:right center;background-repeat:no-repeat;}';
 167         $this->assertEquals($cssout, $optimiser->process($cssin));
 168
 169         $cssin = '.test {background: url([[pix:theme|photos]]) no-repeat 50% 50%;background-size: 40px 40px;-webkit-background-size: 40px 40px;}';
 170         $cssout = '.test{background:url([[pix:theme|photos]]) no-repeat 50% 50%;background-size:40px 40px;-webkit-background-size:40px 40px;}';
 171         $this->assertEquals($cssout, $optimiser->process($cssin));
 172
 173         $cssin = '.test{background-image: -o-linear-gradient(#3c3c3c, #111);background-image: linear-gradient(#3c3c3c, #111);}';
 174         $cssout = '.test{background-image:-o-linear-gradient(#3c3c3c, #111);background-image:linear-gradient(#3c3c3c, #111);}';
 175         $this->assertEquals($cssout, $optimiser->process($cssin));
 176
 177         $cssin = '.test{background-image: -moz-linear-gradient(#3c3c3c, #111);background-image: -webkit-linear-gradient(#3c3c3c, #111);background-image: -o-linear-gradient(#3c3c3c, #111);background-image: linear-gradient(#3c3c3c, #111);background-image: url(/test.png);}';
 178         $cssout = '.test{background-image:-moz-linear-gradient(#3c3c3c, #111);background-image:-webkit-linear-gradient(#3c3c3c, #111);background-image:-o-linear-gradient(#3c3c3c, #111);background-image:linear-gradient(#3c3c3c, #111);background-image:url(/test.png);}';
 179         $cssout = '.test{background-image:url(/test.png);background-image:-moz-linear-gradient(#3c3c3c, #111);background-image:-webkit-linear-gradient(#3c3c3c, #111);background-image:-o-linear-gradient(#3c3c3c, #111);background-image:linear-gradient(#3c3c3c, #111);}';
 180         $this->assertEquals($cssout, $optimiser->process($cssin));
 181
 182         $cssin = '.test{background:#CCC; background-image: url(test.png);}';
 183         $cssout = '.test{background:#CCC url(test.png);}';
 184         $this->assertEquals($cssout, $optimiser->process($cssin));
 185
 186         $cssin = '.test{background:#CCC; background-image: linear-gradient(#3c3c3c, #111);}';
 187         $cssout = '.test{background:#CCC;background-image:linear-gradient(#3c3c3c, #111);}';
 188         $this->assertEquals($cssout, $optimiser->process($cssin));
 189
 190         $cssin = '.test{background:#CCC; background-image: -o-linear-gradient(#3c3c3c, #111);background-image: linear-gradient(#3c3c3c, #111);}';
 191         $cssout = '.test{background:#CCC;background-image:-o-linear-gradient(#3c3c3c, #111);background-image:linear-gradient(#3c3c3c, #111);}';
 192         $this->assertEquals($cssout, $optimiser->process($cssin));
 193
 194         $cssin = '#newmessageoverlay{font-weight: normal; border: 1px solid #222; background: #444; color: #ddd; text-shadow: 0 -1px 0px #000; background-image: -moz-linear-gradient(top, #333 0%, #333 5%, #444 15%, #444 60%, #222 100%); background-image: -webkit-gradient(linear, center top, center bottom, color-stop(0, #333), color-stop(5%, #333), color-stop(15%, #444), color-stop(60%, #444), color-stop(1, #222)); -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorStr=\'#333333\', EndColorStr=\'#222222\')"; padding:20px; padding-left: 0px; padding-right: 10px; position: inherit; z-index: 9999; width: 90%; margin-left: auto; margin-right: auto; height: 100%;}';
 195         $cssout = '#newmessageoverlay{font-weight:normal;border:1px solid #222;background:#444;color:#DDD;text-shadow:0 -1px 0px #000;-ms-filter:"progid:DXImageTransform.Microsoft.gradient(startColorStr=\'#333333\', EndColorStr=\'#222222\')";padding:20px 10px 20px 0;position:inherit;z-index:9999;width:90%;margin-left:auto;margin-right:auto;height:100%;background-image:-moz-linear-gradient(top, #333 0%, #333 5%, #444 15%, #444 60%, #222 100%);background-image:-webkit-gradient(linear, center top, center bottom, color-stop(0, #333), color-stop(5%, #333), color-stop(15%, #444), color-stop(60%, #444), color-stop(1, #222));}';
 196         $this->assertEquals($cssout, $optimiser->process($cssin));
 197
 198         $cssin = '.userenrolment {background-color:inherit !important;background: inherit !important;}';
 199         $cssout = '.userenrolment{background:inherit !important;}';
 200         $this->assertEquals($cssout, $optimiser->process($cssin));
 201
 202         $cssin = '.userenrolment {background-image:url(test.png) !important;background: inherit !important;}';
 203         $cssout = '.userenrolment{background:inherit !important;}';
 204         $this->assertEquals($cssout, $optimiser->process($cssin));
 205
 206         $cssin = '.userenrolment {background: inherit !important;background-image:url(test.png) !important;}';
 207         $cssout = '.userenrolment{background:inherit url(test.png) !important;}';
 208         $this->assertEquals($cssout, $optimiser->process($cssin));
 209
 210         $cssin = '.userenrolment {background: inherit !important;background-image:url(test.png);}';
 211         $cssout = '.userenrolment{background:inherit !important;}';
 212         $this->assertEquals($cssout, $optimiser->process($cssin));
 213
 214         $css = '#filesskin .yui3-widget-hd{background:#CCC;background:-webkit-gradient(linear, left top, left bottom, from(#FFFFFF), to(#CCCCCC));background:-moz-linear-gradient(top, #FFFFFF, #CCCCCC);}';
 215         $this->assertEquals($css, $optimiser->process($css));
 216     }
 217
 218     /**
 219      * Border tests
 220      * @param css_optimiser $optimiser
 221      */
 222     public function test_borders() {
 223         $optimiser = $this->get_optimiser();
 224
 225         $cssin = '.test {border: 1px solid #654321} .test {border-bottom-color: #123456}';
 226         $cssout = '.test{border:1px solid;border-color:#654321 #654321 #123456;}';
 227         $this->assertEquals($cssout, $optimiser->process($cssin));
 228
 229         $cssin = '.one {border:1px solid red;}';
 230         $cssout = '.one{border:1px solid #F00;}';
 231         $this->assertEquals($cssout, $optimiser->process($cssin));
 232
 233         $cssin = '.one {border:1px solid;} .one {border:2px dotted #DDD;}';
 234         $cssout = '.one{border:2px dotted #DDD;}';
 235         $this->assertEquals($cssout, $optimiser->process($cssin));
 236
 237         $cssin = '.one {border:2px dotted #DDD;}.one {border:1px solid;} ';
 238         $cssout = '.one{border:1px solid #DDD;}';
 239         $this->assertEquals($cssout, $optimiser->process($cssin));
 240
 241         $cssin = '.one, .two {border:1px solid red;}';
 242         $cssout = ".one, .two{border:1px solid #F00;}";
 243         $this->assertEquals($cssout, $optimiser->process($cssin));
 244
 245         $cssin = '.one, .two {border:0px;}';
 246         $cssout = ".one, .two{border-width:0;}";
 247         $this->assertEquals($cssout, $optimiser->process($cssin));
 248
 249         $cssin = '.one, .two {border: thin;}';
 250         $cssout = ".one, .two{border-width:thin;}";
 251         $this->assertEquals($cssout, $optimiser->process($cssin));
 252
 253         $cssin = '.one, .two {border: thin solid black;}';
 254         $cssout = ".one, .two{border:thin solid #000;}";
 255         $this->assertEquals($cssout, $optimiser->process($cssin));
 256
 257         $cssin = '.one, .two {border-top: 5px solid white;}';
 258         $cssout = ".one, .two{border-top:5px solid #FFF;}";
 259         $this->assertEquals($cssout, $optimiser->process($cssin));
 260
 261         $cssin = '.one {border:1px solid red;} .two {border:1px solid red;}';
 262         $cssout = ".one, .two{border:1px solid #F00;}";
 263         $this->assertEquals($cssout, $optimiser->process($cssin));
 264
 265         $cssin = '.one {border:1px solid red;width:20px;} .two {border:1px solid red;height:20px;}';
 266         $cssout = ".one{border:1px solid #F00;width:20px;} .two{border:1px solid #F00;height:20px;}";
 267         $this->assertEquals($cssout, $optimiser->process($cssin));
 268
 269         $cssin = '.test {border: 1px solid #123456;} .test {border-color: #654321}';
 270         $cssout = '.test{border:1px solid #654321;}';
 271         $this->assertEquals($cssout, $optimiser->process($cssin));
 272
 273         $cssin = '.test {border-width: 1px; border-style: solid; border-color: #123456;}';
 274         $cssout = '.test{border:1px solid #123456;}';
 275         $this->assertEquals($cssout, $optimiser->process($cssin));
 276
 277         $cssin = '.test {border:1px solid #123456;border-top:2px dotted #654321;}';
 278         $cssout = '.test{border:1px solid #123456;border-top:2px dotted #654321;}';
 279         $this->assertEquals($cssout, $optimiser->process($cssin));
 280
 281         $cssin = '.test {border:1px solid #123456;border-left:2px dotted #654321;}';
 282         $cssout = '.test{border:1px solid #123456;border-left:2px dotted #654321;}';
 283         $this->assertEquals($cssout, $optimiser->process($cssin));
 284
 285         $cssin = '.test {border-left:2px dotted #654321;border:1px solid #123456;}';
 286         $cssout = '.test{border:1px solid #123456;}';
 287         $this->assertEquals($cssout, $optimiser->process($cssin));
 288
 289         $cssin = '.test {border:1px solid;border-top-color:#123456;}';
 290         $cssout = '.test{border:1px solid;border-top-color:#123456;}';
 291         $this->assertEquals($cssout, $optimiser->process($cssin));
 292
 293         $cssin = '.test {border:1px solid;border-top-color:#111; border-bottom-color: #222;border-left-color: #333;}';
 294         $cssout = '.test{border:1px solid;border-top-color:#111;border-bottom-color:#222;border-left-color:#333;}';
 295         $this->assertEquals($cssout, $optimiser->process($cssin));
 296
 297         $cssin = '.test {border:1px solid;border-top-color:#111; border-bottom-color: #222;border-left-color: #333;border-right-color:#444;}';
 298         $cssout = '.test{border:1px solid;border-color:#111 #444 #222 #333;}';
 299         $this->assertEquals($cssout, $optimiser->process($cssin));
 300
 301         $cssin = '.generaltable .cell {border-color:#EEE;} .generaltable .cell {border-width: 1px;border-style: solid;}';
 302         $cssout = '.generaltable .cell{border:1px solid #EEE;}';
 303         $this->assertEquals($cssout, $optimiser->process($cssin));
 304
 305         $cssin = '#page-admin-roles-override .rolecap {border:none;border-bottom:1px solid #CECECE;}';
 306         $cssout = '#page-admin-roles-override .rolecap{border-top:0;border-right:0;border-bottom:1px solid #CECECE;border-left:0;}';
 307         $this->assertEquals($cssout, $optimiser->process($cssin));
 308     }
 309
 310     /**
 311      * Test colour styles
 312      * @param css_optimiser $optimiser
 313      */
 314     public function test_colors() {
 315         $optimiser = $this->get_optimiser();
 316
 317         $css = '.css{}';
 318         $this->assertEquals($css, $optimiser->process($css));
 319
 320         $css = '.css{color:#123456;}';
 321         $this->assertEquals($css, $optimiser->process($css));
 322
 323         $css = '#some{color:#123456;}';
 324         $this->assertEquals($css, $optimiser->process($css));
 325
 326         $css = 'div{color:#123456;}';
 327         $this->assertEquals($css, $optimiser->process($css));
 328
 329         $css = 'div.css{color:#123456;}';
 330         $this->assertEquals($css, $optimiser->process($css));
 331
 332         $css = 'div#some{color:#123456;}';
 333         $this->assertEquals($css, $optimiser->process($css));
 334
 335         $css = 'div[type=blah]{color:#123456;}';
 336         $this->assertEquals($css, $optimiser->process($css));
 337
 338         $css = 'div.css[type=blah]{color:#123456;}';
 339         $this->assertEquals($css, $optimiser->process($css));
 340
 341         $css = 'div#some[type=blah]{color:#123456;}';
 342         $this->assertEquals($css, $optimiser->process($css));
 343
 344         $css = '#some.css[type=blah]{color:#123456;}';
 345         $this->assertEquals($css, $optimiser->process($css));
 346
 347         $css = '#some .css[type=blah]{color:#123456;}';
 348         $this->assertEquals($css, $optimiser->process($css));
 349
 350         $cssin = '.one {color:red;} .two {color:#F00;}';
 351         $cssout = ".one, .two{color:#F00;}";
 352         $this->assertEquals($cssout, $optimiser->process($cssin));
 353
 354         $cssin = '.one {color:#123;color:#321;}';
 355         $cssout = '.one{color:#321;}';
 356         $this->assertEquals($cssout, $optimiser->process($cssin));
 357
 358         $cssin = '.one {color:#123; color : #321 ;}';
 359         $cssout = '.one{color:#321;}';
 360         $this->assertEquals($cssout, $optimiser->process($cssin));
 361
 362         $cssin = '.one {color:#123;} .one {color:#321;}';
 363         $cssout = '.one{color:#321;}';
 364         $this->assertEquals($cssout, $optimiser->process($cssin));
 365
 366         $cssin = '.one {color:#123 !important;color:#321;}';
 367         $cssout = '.one{color:#123 !important;}';
 368         $this->assertEquals($cssout, $optimiser->process($cssin));
 369
 370         $cssin = '.one {color:#123 !important;} .one {color:#321;}';
 371         $cssout = '.one{color:#123 !important;}';
 372         $this->assertEquals($cssout, $optimiser->process($cssin));
 373
 374         $cssin = '.one {color:#123!important;} .one {color:#321;}';
 375         $cssout = '.one{color:#123 !important;}';
 376         $this->assertEquals($cssout, $optimiser->process($cssin));
 377
 378         $cssin = '.one {color:rgb(255, 128, 1)}';
 379         $cssout = '.one{color:rgb(255, 128, 1);}';
 380         $this->assertEquals($cssout, $optimiser->process($cssin));
 381
 382         $cssin = '.one {color:rgba(255, 128, 1, 0.5)}';
 383         $cssout = '.one{color:rgba(255, 128, 1, 0.5);}';
 384         $this->assertEquals($cssout, $optimiser->process($cssin));
 385
 386         $cssin = '.one {color:hsl(120, 65%, 75%)}';
 387         $cssout = '.one{color:hsl(120, 65%, 75%);}';
 388         $this->assertEquals($cssout, $optimiser->process($cssin));
 389
 390         $cssin = '.one {color:hsla(120,65%,75%,0.5)}';
 391         $cssout = '.one{color:hsla(120,65%,75%,0.5);}';
 392         $this->assertEquals($cssout, $optimiser->process($cssin));
 393
 394         // Try some invalid colours to make sure we don't mangle them.
 395         $css = 'div#some{color:#1;}';
 396         $this->assertEquals($css, $optimiser->process($css));
 397
 398         $css = 'div#some{color:#12;}';
 399         $this->assertEquals($css, $optimiser->process($css));
 400
 401         $css = 'div#some{color:#1234;}';
 402         $this->assertEquals($css, $optimiser->process($css));
 403
 404         $css = 'div#some{color:#12345;}';
 405         $this->assertEquals($css, $optimiser->process($css));
 406     }
 407
 408     public function test_widths() {
 409         $optimiser = $this->get_optimiser();
 410
 411         $cssin  = '.css {width:0}';
 412         $cssout = '.css{width:0;}';
 413         $this->assertEquals($cssout, $optimiser->process($cssin));
 414
 415         $cssin  = '.css {width:0px}';
 416         $cssout = '.css{width:0;}';
 417         $this->assertEquals($cssout, $optimiser->process($cssin));
 418
 419         $cssin  = '.css {width:0em}';
 420         $cssout = '.css{width:0;}';
 421         $this->assertEquals($cssout, $optimiser->process($cssin));
 422
 423         $cssin  = '.css {width:0pt}';
 424         $cssout = '.css{width:0;}';
 425         $this->assertEquals($cssout, $optimiser->process($cssin));
 426
 427         $cssin  = '.css {width:0mm}';
 428         $cssout = '.css{width:0;}';
 429         $this->assertEquals($cssout, $optimiser->process($cssin));
 430
 431         $cssin  = '.css {width:100px}';
 432         $cssout = '.css{width:100px;}';
 433         $this->assertEquals($cssout, $optimiser->process($cssin));
 434     }
 435
 436     /**
 437      * Test margin styles
 438      * @param css_optimiser $optimiser
 439      */
 440     public function test_margins() {
 441         $optimiser = $this->get_optimiser();
 442
 443         $cssin = '.one {margin: 1px 2px 3px 4px}';
 444         $cssout = '.one{margin:1px 2px 3px 4px;}';
 445         $this->assertEquals($cssout, $optimiser->process($cssin));
 446
 447         $cssin = '.one {margin-top:1px; margin-left:4px; margin-right:2px; margin-bottom: 3px;}';
 448         $cssout = '.one{margin:1px 2px 3px 4px;}';
 449         $this->assertEquals($cssout, $optimiser->process($cssin));
 450
 451         $cssin = '.one {margin-top:1px; margin-left:4px;}';
 452         $cssout = '.one{margin-top:1px;margin-left:4px;}';
 453         $this->assertEquals($cssout, $optimiser->process($cssin));
 454
 455         $cssin = '.one {margin:1px; margin-left:4px;}';
 456         $cssout = '.one{margin:1px 1px 1px 4px;}';
 457         $this->assertEquals($cssout, $optimiser->process($cssin));
 458
 459         $cssin = '.one {margin:1px; margin-bottom:4px;}';
 460         $cssout = '.one{margin:1px 1px 4px;}';
 461         $this->assertEquals($cssout, $optimiser->process($cssin));
 462
 463         $cssin = '.one, .two, .one.two, .one .two {margin:0;} .one.two {margin:0 7px;}';
 464         $cssout = '.one, .two{margin:0;} .one.two{margin:0 7px;} .one .two{margin:0;}';
 465         $this->assertEquals($cssout, $optimiser->process($cssin));
 466
 467         $cssin = '.block {margin-top: 0px !important;margin-bottom: 0px !important;}';
 468         $cssout = '.block{margin-top:0 !important;margin-bottom:0 !important;}';
 469         $this->assertEquals($cssout, $optimiser->process($cssin));
 470
 471         $cssin = '.block {margin: 0px !important;margin-bottom: 3px;}';
 472         $cssout = '.block{margin:0 !important;}';
 473         $this->assertEquals($cssout, $optimiser->process($cssin));
 474
 475         $cssin = '.block {margin: 5px;margin-right: 0 !important;}';
 476         $cssout = '.block{margin:5px;margin-right:0 !important;}';
 477         $this->assertEquals($cssout, $optimiser->process($cssin));
 478     }
 479
 480     /**
 481      * Test padding styles
 482      *
 483      * @param css_optimiser $optimiser
 484      */
 485     public function test_padding() {
 486         $optimiser = $this->get_optimiser();
 487
 488         $cssin = '.one {padding: 1px 2px 3px 4px}';
 489         $cssout = '.one{padding:1px 2px 3px 4px;}';
 490         $this->assertEquals($cssout, $optimiser->process($cssin));
 491
 492         $cssin = '.one {padding-top:1px; padding-left:4px; padding-right:2px; padding-bottom: 3px;}';
 493         $cssout = '.one{padding:1px 2px 3px 4px;}';
 494         $this->assertEquals($cssout, $optimiser->process($cssin));
 495
 496         $cssin = '.one {padding-top:1px; padding-left:4px;padding-bottom: 3px;}';
 497         $cssout = '.one{padding-top:1px;padding-left:4px;padding-bottom:3px;}';
 498         $this->assertEquals($cssout, $optimiser->process($cssin));
 499
 500         $cssin = '.one {padding-top:1px; padding-left:4px;}';
 501         $cssout = '.one{padding-top:1px;padding-left:4px;}';
 502         $this->assertEquals($cssout, $optimiser->process($cssin));
 503
 504         $cssin = '.one {padding:1px; padding-left:4px;}';
 505         $cssout = '.one{padding:1px 1px 1px 4px;}';
 506         $this->assertEquals($cssout, $optimiser->process($cssin));
 507
 508         $cssin = '.one {padding:1px; padding-bottom:4px;}';
 509         $cssout = '.one{padding:1px 1px 4px;}';
 510         $this->assertEquals($cssout, $optimiser->process($cssin));
 511
 512         $cssin = '.one {padding:0 !important;}';
 513         $cssout = '.one{padding:0 !important;}';
 514         $this->assertEquals($cssout, $optimiser->process($cssin));
 515
 516         $cssin = '.one {padding:0 !important;}';
 517         $cssout = '.one{padding:0 !important;}';
 518         $this->assertEquals($cssout, $optimiser->process($cssin));
 519
 520         $cssin = '.one, .two, .one.two, .one .two {padding:0;} .one.two {padding:0 7px;}';
 521         $cssout = '.one, .two{padding:0;} .one.two{padding:0 7px;} .one .two{padding:0;}';
 522         $this->assertEquals($cssout, $optimiser->process($cssin));
 523
 524         $cssin = '.block {padding-top: 0px !important;padding-bottom: 0px !important;}';
 525         $cssout = '.block{padding-top:0 !important;padding-bottom:0 !important;}';
 526         $this->assertEquals($cssout, $optimiser->process($cssin));
 527
 528         $cssin = '.block {padding: 0px !important;padding-bottom: 3px;}';
 529         $cssout = '.block{padding:0 !important;}';
 530         $this->assertEquals($cssout, $optimiser->process($cssin));
 531
 532         $cssin = '.block {padding: 5px;padding-right: 0 !important;}';
 533         $cssout = '.block{padding:5px;padding-right:0 !important;}';
 534         $this->assertEquals($cssout, $optimiser->process($cssin));
 535     }
 536
 537     public function test_cursor() {
 538         $optimiser = $this->get_optimiser();
 539
 540         // Valid cursor
 541         $cssin = '.one {cursor: pointer;}';
 542         $cssout = '.one{cursor:pointer;}';
 543         $this->assertEquals($cssout, $optimiser->process($cssin));
 544
 545         // Invalid cursor but tollerated
 546         $cssin = '.one {cursor: hand;}';
 547         $cssout = '.one{cursor:hand;}';
 548         $this->assertEquals($cssout, $optimiser->process($cssin));
 549
 550         // Valid cursor: url relative
 551         $cssin = '.one {cursor: mycursor.png;}';
 552         $cssout = '.one{cursor:mycursor.png;}';
 553         $this->assertEquals($cssout, $optimiser->process($cssin));
 554
 555         // Valid cursor: url absolute
 556         $cssin = '.one {cursor: http://local.host/mycursor.png;}';
 557         $cssout = '.one{cursor:http://local.host/mycursor.png;}';
 558         $this->assertEquals($cssout, $optimiser->process($cssin));
 559     }
 560
 561     public function test_vertical_align() {
 562         $optimiser = $this->get_optimiser();
 563
 564         // Valid vertical aligns
 565         $cssin = '.one {vertical-align: baseline;}';
 566         $cssout = '.one{vertical-align:baseline;}';
 567         $this->assertEquals($cssout, $optimiser->process($cssin));
 568         $cssin = '.one {vertical-align: middle;}';
 569         $cssout = '.one{vertical-align:middle;}';
 570         $this->assertEquals($cssout, $optimiser->process($cssin));
 571         $cssin = '.one {vertical-align: 0.75em;}';
 572         $cssout = '.one{vertical-align:0.75em;}';
 573         $this->assertEquals($cssout, $optimiser->process($cssin));
 574         $cssin = '.one {vertical-align: 50%;}';
 575         $cssout = '.one{vertical-align:50%;}';
 576         $this->assertEquals($cssout, $optimiser->process($cssin));
 577
 578         // Invalid but tollerated
 579         $cssin = '.one {vertical-align: center;}';
 580         $cssout = '.one{vertical-align:center;}';
 581         $this->assertEquals($cssout, $optimiser->process($cssin));
 582     }
 583
 584     public function test_float() {
 585         $optimiser = $this->get_optimiser();
 586
 587         // Valid vertical aligns
 588         $cssin = '.one {float: inherit;}';
 589         $cssout = '.one{float:inherit;}';
 590         $this->assertEquals($cssout, $optimiser->process($cssin));
 591         $cssin = '.one {float: left;}';
 592         $cssout = '.one{float:left;}';
 593         $this->assertEquals($cssout, $optimiser->process($cssin));
 594         $cssin = '.one {float: right;}';
 595         $cssout = '.one{float:right;}';
 596         $this->assertEquals($cssout, $optimiser->process($cssin));
 597         $cssin = '.one {float: none;}';
 598         $cssout = '.one{float:none;}';
 599         $this->assertEquals($cssout, $optimiser->process($cssin));
 600
 601         // Invalid but tollerated
 602         $cssin = '.one {float: center;}';
 603         $cssout = '.one{float:center;}';
 604         $this->assertEquals($cssout, $optimiser->process($cssin));
 605     }
 606
 607     /**
 608      * Test some totally invalid CSS optimisation
 609      *
 610      * @param css_optimiser $optimiser
 611      */
 612     protected function try_invalid_css_handling() {
 613         $optimiser = $this->get_optimiser();
 614
 615         $cssin = array(
 616             '.one{}',
 617             '.one {:}',
 618             '.one {;}',
 619             '.one {;;;;;}',
 620             '.one {:;}',
 621             '.one {:;:;:;:::;;;}',
 622             '.one {!important}',
 623             '.one {:!important}',
 624             '.one {:!important;}',
 625             '.one {;!important}'
 626         );
 627         $cssout = '.one{}';
 628         foreach ($cssin as $css) {
 629             $this->assertEquals($cssout, $optimiser->process($css));
 630         }
 631
 632         $cssin = array(
 633             '.one{background-color:red;}',
 634             '.one {background-color:red;} .one {background-color:}',
 635             '.one {background-color:red;} .one {background-color;}',
 636             '.one {background-color:red;} .one {background-color}',
 637             '.one {background-color:red;} .one {background-color:;}',
 638             '.one {background-color:red;} .one {:blue;}',
 639             '.one {background-color:red;} .one {:#00F}',
 640         );
 641         $cssout = '.one{background-color:#F00;}';
 642         foreach ($cssin as $css) {
 643             $this->assertEquals($cssout, $optimiser->process($css));
 644         }
 645
 646         $cssin = '..one {background-color:color:red}';
 647         $cssout = '..one{background-color:color:red;}';
 648         $this->assertEquals($cssout, $optimiser->process($cssin));
 649
 650         $cssin = '#.one {background-color:color:red}';
 651         $cssout = '#.one{background-color:color:red;}';
 652         $this->assertEquals($cssout, $optimiser->process($cssin));
 653
 654         $cssin = '##one {background-color:color:red}';
 655         $cssout = '##one{background-color:color:red;}';
 656         $this->assertEquals($cssout, $optimiser->process($cssin));
 657
 658         $cssin = '.one {background-color:color:red}';
 659         $cssout = '.one{background-color:color:red;}';
 660         $this->assertEquals($cssout, $optimiser->process($cssin));
 661
 662         $cssin = '.one {background-color:red;color;border-color:blue}';
 663         $cssout = '.one{background-color:#F00;border-color:#00F;}';
 664         $this->assertEquals($cssout, $optimiser->process($cssin));
 665
 666         $cssin  = '{background-color:#123456;color:red;}{color:green;}';
 667         $cssout = "{background-color:#123456;color:#008000;}";
 668         $this->assertEquals($cssout, $optimiser->process($cssin));
 669
 670         $cssin  = '.one {color:red;} {color:green;} .one {background-color:blue;}';
 671         $cssout = ".one{color:#F00;background-color:#00F;} {color:#008000;}";
 672         $this->assertEquals($cssout, $optimiser->process($cssin));
 673     }
 674
 675     /**
 676      * Try to break some things
 677      * @param css_optimiser $optimiser
 678      */
 679     protected function try_break_things() {
 680         $optimiser = $this->get_optimiser();
 681
 682         // Wildcard test
 683         $cssin  = '* {color: black;}';
 684         $cssout = '*{color:#000;}';
 685         $this->assertEquals($cssout, $optimiser->process($cssin));
 686
 687         // Wildcard test
 688         $cssin  = '.one * {color: black;}';
 689         $cssout = '.one *{color:#000;}';
 690         $this->assertEquals($cssout, $optimiser->process($cssin));
 691
 692         // Wildcard test
 693         $cssin  = '* .one * {color: black;}';
 694         $cssout = '* .one *{color:#000;}';
 695         $this->assertEquals($cssout, $optimiser->process($cssin));
 696
 697         // Wildcard test
 698         $cssin  = '*,* {color: black;}';
 699         $cssout = '*{color:#000;}';
 700         $this->assertEquals($cssout, $optimiser->process($cssin));
 701
 702         // Wildcard test
 703         $cssin  = '*, * .one {color: black;}';
 704         $cssout = "*,\n* .one{color:#000;}";
 705         $this->assertEquals($cssout, $optimiser->process($cssin));
 706
 707         // Wildcard test
 708         $cssin  = '*, *.one {color: black;}';
 709         $cssout = "*,\n*.one{color:#000;}";
 710         $this->assertEquals($cssout, $optimiser->process($cssin));
 711
 712         // Psedo test
 713         $cssin  = '.one:before {color: black;}';
 714         $cssout = '.one:before{color:#000;}';
 715         $this->assertEquals($cssout, $optimiser->process($cssin));
 716
 717         // Psedo test
 718         $cssin  = '.one:after {color: black;}';
 719         $cssout = '.one:after{color:#000;}';
 720         $this->assertEquals($cssout, $optimiser->process($cssin));
 721
 722         // Psedo test
 723         $cssin  = '.one:onclick {color: black;}';
 724         $cssout = '.one:onclick{color:#000;}';
 725         $this->assertEquals($cssout, $optimiser->process($cssin));
 726
 727         // Test complex CSS rules that don't really exist but mimic other CSS rules
 728         $cssin  = '.one {master-of-destruction: explode(\' \', "What madness");}';
 729         $cssout = '.one{master-of-destruction:explode(\' \', "What madness");}';
 730         $this->assertEquals($cssout, $optimiser->process($cssin));
 731
 732         // Test some complex IE css... I couldn't even think of a more complext solution
 733         // than the CSS they came up with.
 734         $cssin  = 'a { opacity: 0.5; -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)"; filter: alpha(opacity=50); }';
 735         $cssout = 'a{opacity:0.5;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";filter:alpha(opacity=50);}';
 736         $this->assertEquals($cssout, $optimiser->process($cssin));
 737     }
 738
 739     /**
 740      * A bulk processing test
 741      * @param css_optimiser $optimiser
 742      */
 743     protected function try_bulk_processing() {
 744         global $CFG;
 745         $cssin = <<<CSS
 746 .test .one {
 747     margin:5px;
 748     border:0;
 749 }
 750 .test .one {
 751     margin: 10px;
 752     color: red;
 753 }
 754
 755 .test.one {
 756     margin: 15px;
 757 }
 758
 759 #test .one {margin:  20px;}
 760 #test #one {margin:  25px;}.test #one {margin:  30px;}
 761   .test    .one      {     background-color: #123;     }
 762 .test.one{border:1px solid blue}.test.one{border-color:green;}
 763
 764 @media print {
 765     #test .one {margin: 35px;}
 766 }
 767
 768 @media print {
 769     #test .one {margin: 40px;color: #123456;}
 770     #test #one {margin: 45px;}
 771 }
 772
 773 @media print,screen {
 774     #test .one {color: #654321;}
 775 }
 776
 777 #test .one,
 778 #new.style {color:#000;}
 779 CSS;
 780
 781         $cssout = <<<CSS
 782 .test .one{margin:10px;border-width:0;color:#F00;background-color:#123;}
 783 .test.one{margin:15px;border:1px solid #008000;}
 784 #test .one{margin:20px;color:#000;}
 785 #test #one{margin:25px;}
 786 .test #one{margin:30px;}
 787 #new.style{color:#000;}
 788
 789 @media print {
 790   #test .one{margin:40px;color:#123456;}
 791   #test #one{margin:45px;}
 792 }
 793 @media print,screen {
 794   #test .one{color:#654321;}
 795 }
 796 CSS;
 797         $CFG->cssoptimiserpretty = 1;
 798         $this->assertEquals($this->get_optimiser()->process($cssin), $cssout);
 799     }
 800
 801     /**
 802      * Test CSS colour matching
 803      */
 804     public function test_css_is_colour() {
 805         // First lets test hex colours
 806         $this->assertTrue(css_is_colour('#123456'));
 807         $this->assertTrue(css_is_colour('#123'));
 808         $this->assertTrue(css_is_colour('#ABCDEF'));
 809         $this->assertTrue(css_is_colour('#ABC'));
 810         $this->assertTrue(css_is_colour('#abcdef'));
 811         $this->assertTrue(css_is_colour('#abc'));
 812         $this->assertTrue(css_is_colour('#aBcDeF'));
 813         $this->assertTrue(css_is_colour('#aBc'));
 814         $this->assertTrue(css_is_colour('#1a2Bc3'));
 815         $this->assertTrue(css_is_colour('#1Ac'));
 816
 817         // Note the following two colour's arn't really colours but browsers process
 818         // them still.
 819         $this->assertTrue(css_is_colour('#A'));
 820         $this->assertTrue(css_is_colour('#12'));
 821         // Having four or five characters however are not valid colours and
 822         // browsers don't parse them. They need to fail so that broken CSS
 823         // stays broken after optimisation.
 824         $this->assertFalse(css_is_colour('#1234'));
 825         $this->assertFalse(css_is_colour('#12345'));
 826
 827         $this->assertFalse(css_is_colour('#BCDEFG'));
 828         $this->assertFalse(css_is_colour('#'));
 829         $this->assertFalse(css_is_colour('#0000000'));
 830         $this->assertFalse(css_is_colour('#132-245'));
 831         $this->assertFalse(css_is_colour('#13 23 43'));
 832         $this->assertFalse(css_is_colour('123456'));
 833
 834         // Next lets test real browser mapped colours
 835         $this->assertTrue(css_is_colour('black'));
 836         $this->assertTrue(css_is_colour('blue'));
 837         $this->assertTrue(css_is_colour('BLACK'));
 838         $this->assertTrue(css_is_colour('Black'));
 839         $this->assertTrue(css_is_colour('bLACK'));
 840         $this->assertTrue(css_is_colour('mediumaquamarine'));
 841         $this->assertTrue(css_is_colour('mediumAquamarine'));
 842         $this->assertFalse(css_is_colour('monkey'));
 843         $this->assertFalse(css_is_colour(''));
 844         $this->assertFalse(css_is_colour('not a colour'));
 845
 846         // Next lets test rgb(a) colours
 847         $this->assertTrue(css_is_colour('rgb(255,255,255)'));
 848         $this->assertTrue(css_is_colour('rgb(0, 0, 0)'));
 849         $this->assertTrue(css_is_colour('RGB (255, 255   ,    255)'));
 850         $this->assertTrue(css_is_colour('rgba(0,0,0,0)'));
 851         $this->assertTrue(css_is_colour('RGBA(255,255,255,1)'));
 852         $this->assertTrue(css_is_colour('rgbA(255,255,255,0.5)'));
 853         $this->assertFalse(css_is_colour('rgb(-255,-255,-255)'));
 854         $this->assertFalse(css_is_colour('rgb(256,-256,256)'));
 855
 856         // Now lets test HSL colours
 857         $this->assertTrue(css_is_colour('hsl(0,0%,100%)'));
 858         $this->assertTrue(css_is_colour('hsl(180, 0%, 10%)'));
 859         $this->assertTrue(css_is_colour('hsl (360, 100%   ,    95%)'));
 860
 861         // Finally test the special values
 862         $this->assertTrue(css_is_colour('inherit'));
 863     }
 864
 865     /**
 866      * Test the css_is_width function
 867      */
 868     public function test_css_is_width() {
 869
 870         $this->assertTrue(css_is_width('0'));
 871         $this->assertTrue(css_is_width('0px'));
 872         $this->assertTrue(css_is_width('0em'));
 873         $this->assertTrue(css_is_width('199px'));
 874         $this->assertTrue(css_is_width('199em'));
 875         $this->assertTrue(css_is_width('199%'));
 876         $this->assertTrue(css_is_width('-1px'));
 877         $this->assertTrue(css_is_width('auto'));
 878         $this->assertTrue(css_is_width('inherit'));
 879
 880         // Valid widths but missing their unit specifier
 881         $this->assertFalse(css_is_width('0.75'));
 882         $this->assertFalse(css_is_width('3'));
 883         $this->assertFalse(css_is_width('-1'));
 884         // Totally invalid widths
 885         $this->assertFalse(css_is_width('-'));
 886         $this->assertFalse(css_is_width('bananas'));
 887         $this->assertFalse(css_is_width(''));
 888         $this->assertFalse(css_is_width('top'));
 889     }
 890
 891     /**
 892      * This function tests some of the broken crazy CSS we have in Moodle.
 893      * For each of these things the value needs to be corrected if we can be 100%
 894      * certain what is going wrong, Or it needs to be left as is.
 895      *
 896      * @param css_optimiser $optimiser
 897      */
 898     public function try_broken_css_found_in_moodle() {
 899         $optimiser = $this->get_optimiser();
 900
 901         // Notice how things are out of order here but that they get corrected
 902         $cssin = '.test {background:url([[pix:theme|pageheaderbgred]]) top center no-repeat}';
 903         $cssout = '.test{background:url([[pix:theme|pageheaderbgred]]) no-repeat top center;}';
 904         $this->assertEquals($cssout, $optimiser->process($cssin));
 905
 906         // Cursor hand isn't valid
 907         $cssin  = '.test {cursor: hand;}';
 908         $cssout = '.test{cursor:hand;}';
 909         $this->assertEquals($cssout, $optimiser->process($cssin));
 910
 911         // Zoom property isn't valid
 912         $cssin  = '.test {zoom: 1;}';
 913         $cssout = '.test{zoom:1;}';
 914         $this->assertEquals($cssout, $optimiser->process($cssin));
 915
 916         // Left isn't a valid position property
 917         $cssin  = '.test {position: left;}';
 918         $cssout = '.test{position:left;}';
 919         $this->assertEquals($cssout, $optimiser->process($cssin));
 920
 921         // The dark red color isn't a valid HTML color but has a standardised
 922         // translation of #8B0000
 923         $cssin  = '.test {color: darkred;}';
 924         $cssout = '.test{color:#8B0000;}';
 925         $this->assertEquals($cssout, $optimiser->process($cssin));
 926
 927         // You can't use argb colours as border colors
 928         $cssin  = '.test {border-bottom: 1px solid rgba(0,0,0,0.25);}';
 929         $cssout = '.test{border-bottom:1px solid rgba(0,0,0,0.25);}';
 930         $this->assertEquals($cssout, $optimiser->process($cssin));
 931
 932         // Opacity with annoying IE equivilants....
 933         $cssin  = '.test {opacity: 0.5; -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)"; filter: alpha(opacity=50);}';
 934         $cssout = '.test{opacity:0.5;-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";filter:alpha(opacity=50);}';
 935         $this->assertEquals($cssout, $optimiser->process($cssin));
 936     }
 937
 938     /**
 939      * Test keyframe declarations
 940      * @param css_optimiser $optimiser
 941      */
 942     public function try_keyframe_css_animation() {
 943         $optimiser = $this->get_optimiser();
 944
 945         $css = '.dndupload-arrow{width:56px;height:47px;position:absolute;animation:mymove 5s infinite;-moz-animation:mymove 5s infinite;-webkit-animation:mymove 5s infinite;background:url(\'[[pix:theme|fp/dnd_arrow]]\') no-repeat center;margin-left:-28px;}';
 946         $this->assertEquals($css, $optimiser->process($css));
 947
 948         $css = '@keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}';
 949         $this->assertEquals($css, $optimiser->process($css));
 950
 951         $css  = "@keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}\n";
 952         $css .= "@-moz-keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}\n";
 953         $css .= "@-webkit-keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}";
 954         $this->assertEquals($css, $optimiser->process($css));
 955
 956
 957         $cssin = <<<CSS
 958 .test {color:#FFF;}
 959 .testtwo {color:#FFF;}
 960 @media print {
 961     .test {background-color:#FFF;}
 962 }
 963 .dndupload-arrow{width:56px;height:47px;position:absolute;animation:mymove 5s infinite;-moz-animation:mymove 5s infinite;-webkit-animation:mymove 5s infinite;background:url('[[pix:theme|fp/dnd_arrow]]') no-repeat center;margin-left:-28px;}
 964 @media print {
 965     .test {background-color:#000;}
 966 }
 967 @keyframes mymove {0%{top:10px;} 12%{top:40px;} 30%{top:20px} 65%{top:35px;} 100%{top:9px;}}
 968 @-moz-keyframes mymove{0%{top:10px;} 12%{top:40px;} 30%{top:20px} 65%{top:35px;} 100%{top:9px;}}
 969 @-webkit-keyframes mymove {0%{top:10px;} 12%{top:40px;} 30%{top:20px} 65%{top:35px;} 100%{top:9px;}}
 970 @media print {
 971     .test {background-color:#333;}
 972 }
 973 .test {color:#888;}
 974 .testtwo {color:#888;}
 975 CSS;
 976
 977         $cssout = <<<CSS
 978 .test,
 979 .testtwo{color:#888;}
 980 .dndupload-arrow{width:56px;height:47px;position:absolute;animation:mymove 5s infinite;-moz-animation:mymove 5s infinite;-webkit-animation:mymove 5s infinite;background:url('[[pix:theme|fp/dnd_arrow]]') no-repeat center;margin-left:-28px;}
 981
 982 @media print {
 983   .test{background-color:#333;}
 984 }
 985 @keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}
 986 @-moz-keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}
 987 @-webkit-keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}
 988 CSS;
 989         $this->assertEquals($cssout, $optimiser->process($cssin));
 990
 991
 992
 993         $cssin = <<<CSS
 994 .dndupload-target {display:none;}
 995 .dndsupported .dndupload-ready .dndupload-target {display:block;}
 996 .dndupload-uploadinprogress {display:none;text-align:center;}
 997 .dndupload-uploading .dndupload-uploadinprogress {display:block;}
 998 .dndupload-arrow {background:url('[[pix:theme|fp/dnd_arrow]]') center no-repeat;width:56px;height:47px;position:absolute;margin-left: -28px;/*right:46%;left:46%;*/animation:mymove 5s infinite;-moz-animation:mymove 5s infinite;-webkit-animation:mymove 5s infinite;}
 999 @keyframes mymove {0%{top:10px;} 12%{top:40px;} 30%{top:20px} 65%{top:35px;} 100%{top:9px;}}@-moz-keyframes mymove{0%{top:10px;} 12%{top:40px;} 30%{top:20px} 65%{top:35px;} 100%{top:9px;}}@-webkit-keyframes mymove {0%{top:10px;} 12%{top:40px;} 30%{top:20px} 65%{top:35px;} 100%{top:9px;}}
1000
1001 /*
1002  * Select Dialogue (File Manager only)
1003  */
1004 .filemanager.fp-select .fp-select-loading {display:none;}
1005 .filemanager.fp-select.loading .fp-select-loading {display:block;}
1006 .filemanager.fp-select.loading form {display:none;}
1007 CSS;
1008
1009         $cssout = <<<CSS
1010 .dndupload-target{display:none;}
1011 .dndsupported .dndupload-ready .dndupload-target{display:block;}
1012 .dndupload-uploadinprogress{display:none;text-align:center;}
1013 .dndupload-uploading .dndupload-uploadinprogress{display:block;}
1014 .dndupload-arrow{background:url('[[pix:theme|fp/dnd_arrow]]') no-repeat center;width:56px;height:47px;position:absolute;margin-left:-28px;animation:mymove 5s infinite;-moz-animation:mymove 5s infinite;-webkit-animation:mymove 5s infinite;}
1015 .filemanager.fp-select .fp-select-loading{display:none;}
1016 .filemanager.fp-select.loading .fp-select-loading{display:block;}
1017 .filemanager.fp-select.loading form{display:none;}
1018
1019 @keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}
1020 @-moz-keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}
1021 @-webkit-keyframes mymove {0%{top:10px;}12%{top:40px;}30%{top:20px;}65%{top:35px;}100%{top:9px;}}
1022 CSS;
1023         $this->assertEquals($cssout, $optimiser->process($cssin));
1024     }
1025
1026     /**
1027      * Test media declarations
1028      * @param css_optimiser $optimiser
1029      */
1030     public function try_media_rules() {
1031         $optimiser = $this->get_optimiser();
1032
1033         $cssin = "@media print {\n  .test{background-color:#333;}\n}";
1034         $cssout = "@media print {\n  .test{background-color:#333;}\n}";
1035         $this->assertEquals($cssout, $optimiser->process($cssin));
1036
1037         $cssin = "@media screen and (min-width:30px) {\n  #region-main-box{left: 30px;float: left;}\n}";
1038         $cssout = "@media screen and (min-width:30px) {\n  #region-main-box{left:30px;float:left;}\n}";
1039         $this->assertEquals($cssout, $optimiser->process($cssin));
1040
1041         $cssin = "@media all and (min-width:500px) {\n  #region-main-box{left:30px;float:left;}\n}";
1042         $cssout = "@media all and (min-width:500px) {\n  #region-main-box{left:30px;float:left;}\n}";
1043         $this->assertEquals($cssout, $optimiser->process($cssin));
1044
1045         $cssin = "@media (min-width:500px) {\n  #region-main-box{left:30px;float:left;}\n}";
1046         $cssout = "@media (min-width:500px) {\n  #region-main-box{left:30px;float:left;}\n}";
1047         $this->assertEquals($cssout, $optimiser->process($cssin));
1048
1049         $cssin = "@media screen and (color), projection and (color) {\n  #region-main-box{left:30px;float:left;}\n}";
1050         $cssout = "@media screen and (color),projection and (color) {\n  #region-main-box{left:30px;float:left;}\n}";
1051         $this->assertEquals($cssout, $optimiser->process($cssin));
1052
1053         $cssin = "@media print {\n  .test{background-color:#000;}\n}@media print {\n  .test{background-color:#FFF;}\n}";
1054         $cssout = "@media print {\n  .test{background-color:#FFF;}\n}";
1055         $this->assertEquals($cssout, $optimiser->process($cssin));
1056
1057         $cssin = "@media screen and (min-width:30px) {\n  #region-main-box{background-color:#000;}\n}\n@media screen and (min-width:30px) {\n  #region-main-box{background-color:#FFF;}\n}";
1058         $cssout = "@media screen and (min-width:30px) {\n  #region-main-box{background-color:#FFF;}\n}";
1059         $this->assertEquals($cssout, $optimiser->process($cssin));
1060
1061         $cssin = "@media screen and (min-width:30px) {\n  #region-main-box{background-color:#000;}\n}\n@media screen and (min-width:31px) {\n  #region-main-box{background-color:#FFF;}\n}";
1062         $cssout = "@media screen and (min-width:30px) {\n  #region-main-box{background-color:#000;}\n}\n@media screen and (min-width:31px) {\n  #region-main-box{background-color:#FFF;}\n}";
1063         $this->assertEquals($cssout, $optimiser->process($cssin));
1064     }
1065
1066
1067     public function test_css_optimisation_ordering() {
1068         $optimiser = $this->get_optimiser();
1069
1070         $css = '.test{display:none;} .dialogue{display:block;} .dialogue-hidden{display:none;}';
1071         $this->assertEquals($css, $optimiser->process($css));
1072
1073         $cssin = '.test{display:none;} .dialogue-hidden{display:none;} .dialogue{display:block;}';
1074         $cssout = '.test, .dialogue-hidden{display:none;} .dialogue{display:block;}';
1075         $this->assertEquals($cssout, $optimiser->process($cssin));
1076     }
1077 }