tests/phpunit/includes/libs/CSSMinTest.php

   1 <?php
   2 /**
   3  * This file test the CSSMin library shipped with Mediawiki.
   4  *
   5  * @author Timo Tijhof
   6  */
   7
   8 class CSSMinTest extends MediaWikiTestCase {
   9
  10         protected function setUp() {
  11                 parent::setUp();
  12
  13                 $server = 'http://doc.example.org';
  14
  15                 $this->setMwGlobals( array(
  16                         'wgServer' => $server,
  17                         'wgCanonicalServer' => $server,
  18                 ) );
  19         }
  20
  21         /**
  22          * @dataProvider provideMinifyCases
  23          * @covers CSSMin::minify
  24          */
  25         public function testMinify( $code, $expectedOutput ) {
  26                 $minified = CSSMin::minify( $code );
  27
  28                 $this->assertEquals(
  29                         $expectedOutput,
  30                         $minified,
  31                         'Minified output should be in the form expected.'
  32                 );
  33         }
  34
  35         public static function provideMinifyCases() {
  36                 return array(
  37                         // Whitespace
  38                         array( "\r\t\f \v\n\r", "" ),
  39                         array( "foo, bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  40
  41                         // Loose comments
  42                         array( "/* foo */", "" ),
  43                         array( "/*******\n foo\n *******/", "" ),
  44                         array( "/*!\n foo\n */", "" ),
  45
  46                         // Inline comments in various different places
  47                         array( "/* comment */foo, bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  48                         array( "foo/* comment */, bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  49                         array( "foo,/* comment */ bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  50                         array( "foo, bar/* comment */ {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  51                         array( "foo, bar {\n\t/* comment */prop: value;\n}", "foo,bar{prop:value}" ),
  52                         array( "foo, bar {\n\tprop: /* comment */value;\n}", "foo,bar{prop:value}" ),
  53                         array( "foo, bar {\n\tprop: value /* comment */;\n}", "foo,bar{prop:value }" ),
  54                         array( "foo, bar {\n\tprop: value; /* comment */\n}", "foo,bar{prop:value; }" ),
  55
  56                         // Keep track of things that aren't as minified as much as they
  57                         // could be (bug 35493)
  58                         array( 'foo { prop: value ;}', 'foo{prop:value }' ),
  59                         array( 'foo { prop : value; }', 'foo{prop :value}' ),
  60                         array( 'foo { prop: value ; }', 'foo{prop:value }' ),
  61                         array( 'foo { font-family: "foo" , "bar"; }', 'foo{font-family:"foo" ,"bar"}' ),
  62                         array( "foo { src:\n\turl('foo') ,\n\turl('bar') ; }", "foo{src:url('foo') ,url('bar') }" ),
  63
  64                         // Interesting cases with string values
  65                         // - Double quotes, single quotes
  66                         array( 'foo { content: ""; }', 'foo{content:""}' ),
  67                         array( "foo { content: ''; }", "foo{content:''}" ),
  68                         array( 'foo { content: "\'"; }', 'foo{content:"\'"}' ),
  69                         array( "foo { content: '\"'; }", "foo{content:'\"'}" ),
  70                         // - Whitespace in string values
  71                         array( 'foo { content: " "; }', 'foo{content:" "}' ),
  72                 );
  73         }
  74
  75         /**
  76          * This tests funky parameters to CSSMin::remap. testRemapRemapping tests
  77          * the basic functionality.
  78          *
  79          * @dataProvider provideRemapCases
  80          * @covers CSSMin::remap
  81          */
  82         public function testRemap( $message, $params, $expectedOutput ) {
  83                 $remapped = call_user_func_array( 'CSSMin::remap', $params );
  84
  85                 $messageAdd = " Case: $message";
  86                 $this->assertEquals(
  87                         $expectedOutput,
  88                         $remapped,
  89                         'CSSMin::remap should return the expected url form.' . $messageAdd
  90                 );
  91         }
  92
  93         public static function provideRemapCases() {
  94                 // Parameter signature:
  95                 // CSSMin::remap( $code, $local, $remote, $embedData = true )
  96                 return array(
  97                         array(
  98                                 'Simple case',
  99                                 array( 'foo { prop: url(bar.png); }', false, 'http://example.org', false ),
 100                                 'foo { prop: url(http://example.org/bar.png); }',
 101                         ),
 102                         array(
 103                                 'Without trailing slash',
 104                                 array( 'foo { prop: url(../bar.png); }', false, 'http://example.org/quux', false ),
 105                                 'foo { prop: url(http://example.org/quux/../bar.png); }',
 106                         ),
 107                         array(
 108                                 'With trailing slash on remote (bug 27052)',
 109                                 array( 'foo { prop: url(../bar.png); }', false, 'http://example.org/quux/', false ),
 110                                 'foo { prop: url(http://example.org/quux/../bar.png); }',
 111                         ),
 112                         array(
 113                                 'Guard against stripping double slashes from query',
 114                                 array( 'foo { prop: url(bar.png?corge=//grault); }', false, 'http://example.org/quux/', false ),
 115                                 'foo { prop: url(http://example.org/quux/bar.png?corge=//grault); }',
 116                         ),
 117                         array(
 118                                 'Expand absolute paths',
 119                                 array( 'foo { prop: url(/w/skin/images/bar.png); }', false, 'http://example.org/quux', false ),
 120                                 'foo { prop: url(http://doc.example.org/w/skin/images/bar.png); }',
 121                         ),
 122                 );
 123         }
 124
 125         /**
 126          * This tests basic functionality of CSSMin::remap. testRemapRemapping tests funky parameters.
 127          *
 128          * @dataProvider provideRemapRemappingCases
 129          * @covers CSSMin::remap
 130          */
 131         public function testRemapRemapping( $message, $input, $expectedOutput ) {
 132                 $localPath = __DIR__ . '/../../data/cssmin/';
 133                 $remotePath = 'http://localhost/w/';
 134
 135                 $realOutput = CSSMin::remap( $input, $localPath, $remotePath );
 136                 $this->assertEquals( $expectedOutput, $realOutput, "CSSMin::remap: $message" );
 137         }
 138
 139         public static function provideIsRemoteUrl() {
 140                 return array(
 141                         array( true, 'http://localhost/w/red.gif?123' ),
 142                         array( true, 'https://example.org/x.png' ),
 143                         array( true, '//example.org/x.y.z/image.png' ),
 144                         array( true, '//localhost/styles.css?query=yes' ),
 145                         array( true, 'data:image/gif;base64,R0lGODlhAQABAIAAAP8AADAAACwAAAAAAQABAAACAkQBADs=' ),
 146                         array( false, 'x.gif' ),
 147                         array( false, '/x.gif' ),
 148                         array( false, './x.gif' ),
 149                         array( false, '../x.gif' ),
 150                 );
 151         }
 152
 153         /**
 154          * @dataProvider provideIsRemoteUrl
 155          * @cover CSSMin::isRemoteUrl
 156          */
 157         public function testIsRemoteUrl( $expect, $url ) {
 158                 $this->assertEquals( CSSMin::isRemoteUrl( $url ), $expect );
 159         }
 160
 161         public static function provideIsLocalUrls() {
 162                 return array(
 163                         array( false, 'x.gif' ),
 164                         array( true, '/x.gif' ),
 165                         array( false, './x.gif' ),
 166                         array( false, '../x.gif' ),
 167                 );
 168         }
 169
 170         /**
 171          * @dataProvider provideIsLocalUrls
 172          * @cover CSSMin::isLocalUrl
 173          */
 174         public function testIsLocalUrl( $expect, $url ) {
 175                 $this->assertEquals( CSSMin::isLocalUrl( $url ), $expect );
 176         }
 177
 178         public static function provideRemapRemappingCases() {
 179                 // red.gif and green.gif are one-pixel 35-byte GIFs.
 180                 // large.png is a 35K PNG that should be non-embeddable.
 181                 // Full paths start with http://localhost/w/.
 182                 // Timestamps in output are replaced with 'timestamp'.
 183
 184                 // data: URIs for red.gif, green.gif, circle.svg
 185                 $red   = 'data:image/gif;base64,R0lGODlhAQABAIAAAP8AADAAACwAAAAAAQABAAACAkQBADs=';
 186                 $green = 'data:image/gif;base64,R0lGODlhAQABAIAAAACAADAAACwAAAAAAQABAAACAkQBADs=';
 187                 $svg = 'data:image/svg+xml,%3C%3Fxml%20version%3D%221.0%22%20encoding%3D%22UTF-8%22%3F%3E%0A'
 188                         . '%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%228%22%20height%3D'
 189                         . '%228%22%3E%0A%3Ccircle%20cx%3D%224%22%20cy%3D%224%22%20r%3D%222%22%2F%3E%0A%3C%2Fsvg%3E%0A';
 190
 191                 return array(
 192                         array(
 193                                 'Regular file',
 194                                 'foo { background: url(red.gif); }',
 195                                 'foo { background: url(http://localhost/w/red.gif?34ac6); }',
 196                         ),
 197                         array(
 198                                 'Regular file (missing)',
 199                                 'foo { background: url(theColorOfHerHair.gif); }',
 200                                 'foo { background: url(http://localhost/w/theColorOfHerHair.gif); }',
 201                         ),
 202                         array(
 203                                 'Remote URL',
 204                                 'foo { background: url(http://example.org/w/foo.png); }',
 205                                 'foo { background: url(http://example.org/w/foo.png); }',
 206                         ),
 207                         array(
 208                                 'Protocol-relative remote URL',
 209                                 'foo { background: url(//example.org/w/foo.png); }',
 210                                 'foo { background: url(//example.org/w/foo.png); }',
 211                         ),
 212                         array(
 213                                 'Remote URL with query',
 214                                 'foo { background: url(http://example.org/w/foo.png?query=yes); }',
 215                                 'foo { background: url(http://example.org/w/foo.png?query=yes); }',
 216                         ),
 217                         array(
 218                                 'Protocol-relative remote URL with query',
 219                                 'foo { background: url(//example.org/w/foo.png?query=yes); }',
 220                                 'foo { background: url(//example.org/w/foo.png?query=yes); }',
 221                         ),
 222                         array(
 223                                 'Domain-relative URL',
 224                                 'foo { background: url(/static/foo.png); }',
 225                                 'foo { background: url(http://doc.example.org/static/foo.png); }',
 226                         ),
 227                         array(
 228                                 'Domain-relative URL with query',
 229                                 'foo { background: url(/static/foo.png?query=yes); }',
 230                                 'foo { background: url(http://doc.example.org/static/foo.png?query=yes); }',
 231                         ),
 232                         array(
 233                                 'Remote URL (unnecessary quotes not preserved)',
 234                                 'foo { background: url("http://example.org/w/foo.png"); }',
 235                                 'foo { background: url(http://example.org/w/foo.png); }',
 236                         ),
 237                         array(
 238                                 'Embedded file',
 239                                 'foo { /* @embed */ background: url(red.gif); }',
 240                                 "foo { background: url($red); background: url(http://localhost/w/red.gif?34ac6)!ie; }",
 241                         ),
 242                         array(
 243                                 'Embedded file, other comments before the rule',
 244                                 "foo { /* Bar. */ /* @embed */ background: url(red.gif); }",
 245                                 "foo { /* Bar. */ background: url($red); /* Bar. */ background: url(http://localhost/w/red.gif?34ac6)!ie; }",
 246                         ),
 247                         array(
 248                                 'Can not re-embed data: URIs',
 249                                 "foo { /* @embed */ background: url($red); }",
 250                                 "foo { background: url($red); }",
 251                         ),
 252                         array(
 253                                 'Can not remap data: URIs',
 254                                 "foo { background: url($red); }",
 255                                 "foo { background: url($red); }",
 256                         ),
 257                         array(
 258                                 'Can not embed remote URLs',
 259                                 'foo { /* @embed */ background: url(http://example.org/w/foo.png); }',
 260                                 'foo { background: url(http://example.org/w/foo.png); }',
 261                         ),
 262                         array(
 263                                 'Embedded file (inline @embed)',
 264                                 'foo { background: /* @embed */ url(red.gif); }',
 265                                 "foo { background: url($red); "
 266                                         . "background: url(http://localhost/w/red.gif?34ac6)!ie; }",
 267                         ),
 268                         array(
 269                                 'Can not embed large files',
 270                                 'foo { /* @embed */ background: url(large.png); }',
 271                                 "foo { background: url(http://localhost/w/large.png?e3d1f); }",
 272                         ),
 273                         array(
 274                                 'SVG files are embedded without base64 encoding and unnecessary IE 6 and 7 fallback',
 275                                 'foo { /* @embed */ background: url(circle.svg); }',
 276                                 "foo { background: url($svg); }",
 277                         ),
 278                         array(
 279                                 'Two regular files in one rule',
 280                                 'foo { background: url(red.gif), url(green.gif); }',
 281                                 'foo { background: url(http://localhost/w/red.gif?34ac6), '
 282                                         . 'url(http://localhost/w/green.gif?13651); }',
 283                         ),
 284                         array(
 285                                 'Two embedded files in one rule',
 286                                 'foo { /* @embed */ background: url(red.gif), url(green.gif); }',
 287                                 "foo { background: url($red), url($green); "
 288                                         . "background: url(http://localhost/w/red.gif?34ac6), "
 289                                         . "url(http://localhost/w/green.gif?13651)!ie; }",
 290                         ),
 291                         array(
 292                                 'Two embedded files in one rule (inline @embed)',
 293                                 'foo { background: /* @embed */ url(red.gif), /* @embed */ url(green.gif); }',
 294                                 "foo { background: url($red), url($green); "
 295                                         . "background: url(http://localhost/w/red.gif?34ac6), "
 296                                         . "url(http://localhost/w/green.gif?13651)!ie; }",
 297                         ),
 298                         array(
 299                                 'Two embedded files in one rule (inline @embed), one too large',
 300                                 'foo { background: /* @embed */ url(red.gif), /* @embed */ url(large.png); }',
 301                                 "foo { background: url($red), url(http://localhost/w/large.png?e3d1f); "
 302                                         . "background: url(http://localhost/w/red.gif?34ac6), "
 303                                         . "url(http://localhost/w/large.png?e3d1f)!ie; }",
 304                         ),
 305                         array(
 306                                 'Practical example with some noise',
 307                                 'foo { /* @embed */ background: #f9f9f9 url(red.gif) 0 0 no-repeat; }',
 308                                 "foo { background: #f9f9f9 url($red) 0 0 no-repeat; "
 309                                         . "background: #f9f9f9 url(http://localhost/w/red.gif?34ac6) 0 0 no-repeat!ie; }",
 310                         ),
 311                         array(
 312                                 'Does not mess with other properties',
 313                                 'foo { color: red; background: url(red.gif); font-size: small; }',
 314                                 'foo { color: red; background: url(http://localhost/w/red.gif?34ac6); font-size: small; }',
 315                         ),
 316                         array(
 317                                 'Spacing and miscellanea not changed (1)',
 318                                 'foo {   background:    url(red.gif);  }',
 319                                 'foo {   background:    url(http://localhost/w/red.gif?34ac6);  }',
 320                         ),
 321                         array(
 322                                 'Spacing and miscellanea not changed (2)',
 323                                 'foo {background:url(red.gif)}',
 324                                 'foo {background:url(http://localhost/w/red.gif?34ac6)}',
 325                         ),
 326                         array(
 327                                 'Spaces within url() parentheses are ignored',
 328                                 'foo { background: url( red.gif ); }',
 329                                 'foo { background: url(http://localhost/w/red.gif?34ac6); }',
 330                         ),
 331                         array(
 332                                 '@import rule to local file (should we remap this?)',
 333                                 '@import url(/styles.css)',
 334                                 '@import url(http://doc.example.org/styles.css)',
 335                         ),
 336                         array(
 337                                 '@import rule to URL (should we remap this?)',
 338                                 '@import url(//localhost/styles.css?query=yes)',
 339                                 '@import url(//localhost/styles.css?query=yes)',
 340                         ),
 341                         array(
 342                                 'Simple case with comments before url',
 343                                 'foo { prop: /* some {funny;} comment */ url(bar.png); }',
 344                                 'foo { prop: /* some {funny;} comment */ url(http://localhost/w/bar.png); }',
 345                         ),
 346                         array(
 347                                 'Simple case with comments after url',
 348                                 'foo { prop: url(red.gif)/* some {funny;} comment */ ; }',
 349                                 'foo { prop: url(http://localhost/w/red.gif?34ac6)/* some {funny;} comment */ ; }',
 350                         ),
 351                         array(
 352                                 'Embedded file with comment before url',
 353                                 'foo { /* @embed */ background: /* some {funny;} comment */ url(red.gif); }',
 354                                 "foo { background: /* some {funny;} comment */ url($red); background: /* some {funny;} comment */ url(http://localhost/w/red.gif?34ac6)!ie; }",
 355                         ),
 356                         array(
 357                                 'Embedded file with comments inside and outside the rule',
 358                                 'foo { /* @embed */ background: url(red.gif) /* some {foo;} comment */; /* some {bar;} comment */ }',
 359                                 "foo { background: url($red) /* some {foo;} comment */; background: url(http://localhost/w/red.gif?34ac6) /* some {foo;} comment */!ie; /* some {bar;} comment */ }",
 360                         ),
 361                         array(
 362                                 'Embedded file with comment outside the rule',
 363                                 'foo { /* @embed */ background: url(red.gif); /* some {funny;} comment */ }',
 364                                 "foo { background: url($red); background: url(http://localhost/w/red.gif?34ac6)!ie; /* some {funny;} comment */ }",
 365                         ),
 366                         array(
 367                                 'Rule with two urls, each with comments',
 368                                 '{ background: /*asd*/ url(something.png); background: /*jkl*/ url(something.png); }',
 369                                 '{ background: /*asd*/ url(http://localhost/w/something.png); background: /*jkl*/ url(http://localhost/w/something.png); }',
 370                         ),
 371                         array(
 372                                 'Sanity check for offending line from jquery.ui.theme.css (bug 60077)',
 373                                 '.ui-state-default, .ui-widget-content .ui-state-default, .ui-widget-header .ui-state-default { border: 1px solid #d3d3d3/*{borderColorDefault}*/; background: #e6e6e6/*{bgColorDefault}*/ url(images/ui-bg_glass_75_e6e6e6_1x400.png)/*{bgImgUrlDefault}*/ 50%/*{bgDefaultXPos}*/ 50%/*{bgDefaultYPos}*/ repeat-x/*{bgDefaultRepeat}*/; font-weight: normal/*{fwDefault}*/; color: #555555/*{fcDefault}*/; }',
 374                                 '.ui-state-default, .ui-widget-content .ui-state-default, .ui-widget-header .ui-state-default { border: 1px solid #d3d3d3/*{borderColorDefault}*/; background: #e6e6e6/*{bgColorDefault}*/ url(http://localhost/w/images/ui-bg_glass_75_e6e6e6_1x400.png)/*{bgImgUrlDefault}*/ 50%/*{bgDefaultXPos}*/ 50%/*{bgDefaultYPos}*/ repeat-x/*{bgDefaultRepeat}*/; font-weight: normal/*{fwDefault}*/; color: #555555/*{fcDefault}*/; }',
 375                         ),
 376                 );
 377         }
 378
 379         /**
 380          * This tests basic functionality of CSSMin::buildUrlValue.
 381          *
 382          * @dataProvider provideBuildUrlValueCases
 383          * @covers CSSMin::buildUrlValue
 384          */
 385         public function testBuildUrlValue( $message, $input, $expectedOutput ) {
 386                 $this->assertEquals(
 387                         $expectedOutput,
 388                         CSSMin::buildUrlValue( $input ),
 389                         "CSSMin::buildUrlValue: $message"
 390                 );
 391         }
 392
 393         public static function provideBuildUrlValueCases() {
 394                 return array(
 395                         array(
 396                                 'Full URL',
 397                                 'scheme://user@domain:port/~user/fi%20le.png?query=yes&really=y+s',
 398                                 'url(scheme://user@domain:port/~user/fi%20le.png?query=yes&really=y+s)',
 399                         ),
 400                         array(
 401                                 'data: URI',
 402                                 'data:image/png;base64,R0lGODlh/+==',
 403                                 'url(data:image/png;base64,R0lGODlh/+==)',
 404                         ),
 405                         array(
 406                                 'URL with quotes',
 407                                 "https://en.wikipedia.org/wiki/Wendy's",
 408                                 "url(\"https://en.wikipedia.org/wiki/Wendy's\")",
 409                         ),
 410                         array(
 411                                 'URL with parentheses',
 412                                 'https://en.wikipedia.org/wiki/Boston_(band)',
 413                                 'url("https://en.wikipedia.org/wiki/Boston_(band)")',
 414                         ),
 415                 );
 416         }
 417
 418         /**
 419          * Seperated because they are currently broken (bug 35492)
 420          *
 421          * @group Broken
 422          * @dataProvider provideStringCases
 423          * @covers CSSMin::remap
 424          */
 425         public function testMinifyWithCSSStringValues( $code, $expectedOutput ) {
 426                 $this->testMinifyOutput( $code, $expectedOutput );
 427         }
 428
 429         public static function provideStringCases() {
 430                 return array(
 431                         // String values should be respected
 432                         // - More than one space in a string value
 433                         array( 'foo { content: "  "; }', 'foo{content:"  "}' ),
 434                         // - Using a tab in a string value (turns into a space)
 435                         array( "foo { content: '\t'; }", "foo{content:'\t'}" ),
 436                         // - Using css-like syntax in string values
 437                         array(
 438                                 'foo::after { content: "{;}"; position: absolute; }',
 439                                 'foo::after{content:"{;}";position:absolute}'
 440                         ),
 441                 );
 442         }
 443 }