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( $expectedOutput, $minified, 'Minified output should be in the form expected.' );
  29         }
  30
  31         public static function provideMinifyCases() {
  32                 return array(
  33                         // Whitespace
  34                         array( "\r\t\f \v\n\r", "" ),
  35                         array( "foo, bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  36
  37                         // Loose comments
  38                         array( "/* foo */", "" ),
  39                         array( "/*******\n foo\n *******/", "" ),
  40                         array( "/*!\n foo\n */", "" ),
  41
  42                         // Inline comments in various different places
  43                         array( "/* comment */foo, bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  44                         array( "foo/* comment */, bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  45                         array( "foo,/* comment */ bar {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  46                         array( "foo, bar/* comment */ {\n\tprop: value;\n}", "foo,bar{prop:value}" ),
  47                         array( "foo, bar {\n\t/* comment */prop: value;\n}", "foo,bar{prop:value}" ),
  48                         array( "foo, bar {\n\tprop: /* comment */value;\n}", "foo,bar{prop:value}" ),
  49                         array( "foo, bar {\n\tprop: value /* comment */;\n}", "foo,bar{prop:value }" ),
  50                         array( "foo, bar {\n\tprop: value; /* comment */\n}", "foo,bar{prop:value; }" ),
  51
  52                         // Keep track of things that aren't as minified as much as they
  53                         // could be (bug 35493)
  54                         array( 'foo { prop: value ;}', 'foo{prop:value }' ),
  55                         array( 'foo { prop : value; }', 'foo{prop :value}' ),
  56                         array( 'foo { prop: value ; }', 'foo{prop:value }' ),
  57                         array( 'foo { font-family: "foo" , "bar"; }', 'foo{font-family:"foo" ,"bar"}' ),
  58                         array( "foo { src:\n\turl('foo') ,\n\turl('bar') ; }", "foo{src:url('foo') ,url('bar') }" ),
  59
  60                         // Interesting cases with string values
  61                         // - Double quotes, single quotes
  62                         array( 'foo { content: ""; }', 'foo{content:""}' ),
  63                         array( "foo { content: ''; }", "foo{content:''}" ),
  64                         array( 'foo { content: "\'"; }', 'foo{content:"\'"}' ),
  65                         array( "foo { content: '\"'; }", "foo{content:'\"'}" ),
  66                         // - Whitespace in string values
  67                         array( 'foo { content: " "; }', 'foo{content:" "}' ),
  68                 );
  69         }
  70
  71         /**
  72          * This tests funky parameters to CSSMin::remap. testRemapRemapping tests the basic functionality.
  73          *
  74          * @dataProvider provideRemapCases
  75          * @covers CSSMin::remap
  76          */
  77         public function testRemap( $message, $params, $expectedOutput ) {
  78                 $remapped = call_user_func_array( 'CSSMin::remap', $params );
  79
  80                 $messageAdd = " Case: $message";
  81                 $this->assertEquals( $expectedOutput, $remapped, 'CSSMin::remap should return the expected url form.' . $messageAdd );
  82         }
  83
  84         public static function provideRemapCases() {
  85                 // Parameter signature:
  86                 // CSSMin::remap( $code, $local, $remote, $embedData = true )
  87                 return array(
  88                         array(
  89                                 'Simple case',
  90                                 array( 'foo { prop: url(bar.png); }', false, 'http://example.org', false ),
  91                                 'foo { prop: url(http://example.org/bar.png); }',
  92                         ),
  93                         array(
  94                                 'Without trailing slash',
  95                                 array( 'foo { prop: url(../bar.png); }', false, 'http://example.org/quux', false ),
  96                                 'foo { prop: url(http://example.org/quux/../bar.png); }',
  97                         ),
  98                         array(
  99                                 'With trailing slash on remote (bug 27052)',
 100                                 array( 'foo { prop: url(../bar.png); }', false, 'http://example.org/quux/', false ),
 101                                 'foo { prop: url(http://example.org/quux/../bar.png); }',
 102                         ),
 103                         array(
 104                                 'Guard against stripping double slashes from query',
 105                                 array( 'foo { prop: url(bar.png?corge=//grault); }', false, 'http://example.org/quux/', false ),
 106                                 'foo { prop: url(http://example.org/quux/bar.png?corge=//grault); }',
 107                         ),
 108                         array(
 109                                 'Expand absolute paths',
 110                                 array( 'foo { prop: url(/w/skin/images/bar.png); }', false, 'http://example.org/quux', false ),
 111                                 'foo { prop: url(http://doc.example.org/w/skin/images/bar.png); }',
 112                         ),
 113                 );
 114         }
 115
 116         /**
 117          * This tests basic functionality of CSSMin::remap. testRemapRemapping tests funky parameters.
 118          *
 119          * @dataProvider provideRemapRemappingCases
 120          * @covers CSSMin::remap
 121          */
 122         public function testRemapRemapping( $message, $input, $expectedOutput ) {
 123                 $localPath = __DIR__ . '/../../data/cssmin/';
 124                 $remotePath = 'http://localhost/w/';
 125
 126                 $realOutput = CSSMin::remap( $input, $localPath, $remotePath );
 127
 128                 $this->assertEquals(
 129                         $expectedOutput,
 130                         preg_replace( '/\d+-\d+-\d+T\d+:\d+:\d+Z/', 'timestamp', $realOutput ),
 131                         "CSSMin::remap: $message"
 132                 );
 133         }
 134
 135         public static function provideRemapRemappingCases() {
 136                 // red.gif and green.gif are one-pixel 35-byte GIFs.
 137                 // large.png is a 35K PNG that should be non-embeddable.
 138                 // Full paths start with http://localhost/w/.
 139                 // Timestamps in output are replaced with 'timestamp'.
 140
 141                 // data: URIs for red.gif and green.gif
 142                 $red   = 'data:image/gif;base64,R0lGODlhAQABAIAAAP8AADAAACwAAAAAAQABAAACAkQBADs=';
 143                 $green = 'data:image/gif;base64,R0lGODlhAQABAIAAAACAADAAACwAAAAAAQABAAACAkQBADs=';
 144
 145                 return array(
 146                         array(
 147                                 'Regular file',
 148                                 'foo { background: url(red.gif); }',
 149                                 'foo { background: url(http://localhost/w/red.gif?timestamp); }',
 150                         ),
 151                         array(
 152                                 'Regular file (missing)',
 153                                 'foo { background: url(theColorOfHerHair.gif); }',
 154                                 'foo { background: url(http://localhost/w/theColorOfHerHair.gif); }',
 155                         ),
 156                         array(
 157                                 'Remote URL',
 158                                 'foo { background: url(http://example.org/w/foo.png); }',
 159                                 'foo { background: url(http://example.org/w/foo.png); }',
 160                         ),
 161                         array(
 162                                 'Protocol-relative remote URL',
 163                                 'foo { background: url(//example.org/w/foo.png); }',
 164                                 'foo { background: url(//example.org/w/foo.png); }',
 165                         ),
 166                         array(
 167                                 'Remote URL with query',
 168                                 'foo { background: url(http://example.org/w/foo.png?query=yes); }',
 169                                 'foo { background: url(http://example.org/w/foo.png?query=yes); }',
 170                         ),
 171                         array(
 172                                 'Protocol-relative remote URL with query',
 173                                 'foo { background: url(//example.org/w/foo.png?query=yes); }',
 174                                 'foo { background: url(//example.org/w/foo.png?query=yes); }',
 175                         ),
 176                         array(
 177                                 'Domain-relative URL',
 178                                 'foo { background: url(/static/foo.png); }',
 179                                 'foo { background: url(http://doc.example.org/static/foo.png); }',
 180                         ),
 181                         array(
 182                                 'Domain-relative URL with query',
 183                                 'foo { background: url(/static/foo.png?query=yes); }',
 184                                 'foo { background: url(http://doc.example.org/static/foo.png?query=yes); }',
 185                         ),
 186                         array(
 187                                 'Remote URL (unnecessary quotes not preserved)',
 188                                 'foo { background: url("http://example.org/w/foo.png"); }',
 189                                 'foo { background: url(http://example.org/w/foo.png); }',
 190                         ),
 191                         array(
 192                                 'Embedded file',
 193                                 'foo { /* @embed */ background: url(red.gif); }',
 194                                 "foo { background: url($red); background: url(http://localhost/w/red.gif?timestamp)!ie; }",
 195                         ),
 196                         array(
 197                                 'Can not embed remote URLs',
 198                                 'foo { /* @embed */ background: url(http://example.org/w/foo.png); }',
 199                                 'foo { background: url(http://example.org/w/foo.png); }',
 200                         ),
 201                         array(
 202                                 'Embedded file (inline @embed)',
 203                                 'foo { background: /* @embed */ url(red.gif); }',
 204                                 "foo { background: url($red); background: url(http://localhost/w/red.gif?timestamp)!ie; }",
 205                         ),
 206                         array(
 207                                 'Can not embed large files',
 208                                 'foo { /* @embed */ background: url(large.png); }',
 209                                 "foo { background: url(http://localhost/w/large.png?timestamp); }",
 210                         ),
 211                         array(
 212                                 'Two regular files in one rule',
 213                                 'foo { background: url(red.gif), url(green.gif); }',
 214                                 'foo { background: url(http://localhost/w/red.gif?timestamp), url(http://localhost/w/green.gif?timestamp); }',
 215                         ),
 216                         array(
 217                                 'Two embedded files in one rule',
 218                                 'foo { /* @embed */ background: url(red.gif), url(green.gif); }',
 219                                 "foo { background: url($red), url($green); background: url(http://localhost/w/red.gif?timestamp), url(http://localhost/w/green.gif?timestamp)!ie; }",
 220                         ),
 221                         array(
 222                                 'Two embedded files in one rule (inline @embed)',
 223                                 'foo { background: /* @embed */ url(red.gif), /* @embed */ url(green.gif); }',
 224                                 "foo { background: url($red), url($green); background: url(http://localhost/w/red.gif?timestamp), url(http://localhost/w/green.gif?timestamp)!ie; }",
 225                         ),
 226                         array(
 227                                 'Two embedded files in one rule (inline @embed), one too large',
 228                                 'foo { background: /* @embed */ url(red.gif), /* @embed */ url(large.png); }',
 229                                 "foo { background: url($red), url(http://localhost/w/large.png?timestamp); background: url(http://localhost/w/red.gif?timestamp), url(http://localhost/w/large.png?timestamp)!ie; }",
 230                         ),
 231                         array(
 232                                 'Practical example with some noise',
 233                                 'foo { /* @embed */ background: #f9f9f9 url(red.gif) 0 0 no-repeat; }',
 234                                 "foo { background: #f9f9f9 url($red) 0 0 no-repeat; background: #f9f9f9 url(http://localhost/w/red.gif?timestamp) 0 0 no-repeat!ie; }",
 235                         ),
 236                         array(
 237                                 'Does not mess with other properties',
 238                                 'foo { color: red; background: url(red.gif); font-size: small; }',
 239                                 'foo { color: red; background: url(http://localhost/w/red.gif?timestamp); font-size: small; }',
 240                         ),
 241                         array(
 242                                 'Spacing and miscellanea not changed (1)',
 243                                 'foo {   background:    url(red.gif);  }',
 244                                 'foo {   background:    url(http://localhost/w/red.gif?timestamp);  }',
 245                         ),
 246                         array(
 247                                 'Spacing and miscellanea not changed (2)',
 248                                 'foo {background:url(red.gif)}',
 249                                 'foo {background:url(http://localhost/w/red.gif?timestamp)}',
 250                         ),
 251                         array(
 252                                 'Spaces within url() parentheses are ignored',
 253                                 'foo { background: url( red.gif ); }',
 254                                 'foo { background: url(http://localhost/w/red.gif?timestamp); }',
 255                         ),
 256                         array(
 257                                 '@import rule to local file (should we remap this?)',
 258                                 '@import url(/styles.css)',
 259                                 '@import url(http://doc.example.org/styles.css)',
 260                         ),
 261                         array(
 262                                 '@import rule to URL (should we remap this?)',
 263                                 '@import url(//localhost/styles.css?query=yes)',
 264                                 '@import url(//localhost/styles.css?query=yes)',
 265                         ),
 266                 );
 267         }
 268
 269         /**
 270          * This tests basic functionality of CSSMin::buildUrlValue.
 271          *
 272          * @dataProvider provideBuildUrlValueCases
 273          * @covers CSSMin::buildUrlValue
 274          */
 275         public function testBuildUrlValue( $message, $input, $expectedOutput ) {
 276                 $this->assertEquals(
 277                         $expectedOutput,
 278                         CSSMin::buildUrlValue( $input ),
 279                         "CSSMin::buildUrlValue: $message"
 280                 );
 281         }
 282
 283         public static function provideBuildUrlValueCases() {
 284                 return array(
 285                         array(
 286                                 'Full URL',
 287                                 'scheme://user@domain:port/~user/fi%20le.png?query=yes&really=y+s',
 288                                 'url(scheme://user@domain:port/~user/fi%20le.png?query=yes&really=y+s)',
 289                         ),
 290                         array(
 291                                 'data: URI',
 292                                 'data:image/png;base64,R0lGODlh/+==',
 293                                 'url(data:image/png;base64,R0lGODlh/+==)',
 294                         ),
 295                         array(
 296                                 'URL with quotes',
 297                                 "https://en.wikipedia.org/wiki/Wendy's",
 298                                 "url(\"https://en.wikipedia.org/wiki/Wendy's\")",
 299                         ),
 300                         array(
 301                                 'URL with parentheses',
 302                                 'https://en.wikipedia.org/wiki/Boston_(band)',
 303                                 'url("https://en.wikipedia.org/wiki/Boston_(band)")',
 304                         ),
 305                 );
 306         }
 307
 308         /**
 309          * Seperated because they are currently broken (bug 35492)
 310          *
 311          * @group Broken
 312          * @dataProvider provideStringCases
 313          * @covers CSSMin::remap
 314          */
 315         public function testMinifyWithCSSStringValues( $code, $expectedOutput ) {
 316                 $this->testMinifyOutput( $code, $expectedOutput );
 317         }
 318
 319         public static function provideStringCases() {
 320                 return array(
 321                         // String values should be respected
 322                         // - More than one space in a string value
 323                         array( 'foo { content: "  "; }', 'foo{content:"  "}' ),
 324                         // - Using a tab in a string value (turns into a space)
 325                         array( "foo { content: '\t'; }", "foo{content:'\t'}" ),
 326                         // - Using css-like syntax in string values
 327                         array( 'foo::after { content: "{;}"; position: absolute; }', 'foo::after{content:"{;}";position:absolute}' ),
 328                 );
 329         }
 330 }