tests/HTMLPurifier/Filter/ExtractStyleBlocksTest.php

   1 <?php
   2
   3 /**
   4  * @todo Assimilate CSSTidy into our library
   5  */
   6 class HTMLPurifier_Filter_ExtractStyleBlocksTest extends HTMLPurifier_Harness
   7 {
   8
   9     // usual use case:
  10     function test_tokenizeHTML_extractStyleBlocks() {
  11         $this->config->set('Filter.ExtractStyleBlocks', true);
  12         $purifier = new HTMLPurifier($this->config);
  13         $result = $purifier->purify('<style type="text/css">.foo {text-align:center;bogus:remove-me;}</style>Test<style>* {font-size:12pt;}</style>');
  14         $this->assertIdentical($result, 'Test');
  15         $this->assertIdentical($purifier->context->get('StyleBlocks'),
  16             array(
  17                 ".foo {\ntext-align:center;\n}",
  18                 "* {\nfont-size:12pt;\n}"
  19             )
  20         );
  21     }
  22
  23     function assertExtractStyleBlocks($html, $expect = true, $styles = array()) {
  24         $filter = new HTMLPurifier_Filter_ExtractStyleBlocks(); // disable cleaning
  25         if ($expect === true) $expect = $html;
  26         $this->config->set('Filter.ExtractStyleBlocks.TidyImpl', false);
  27         $result = $filter->preFilter($html, $this->config, $this->context);
  28         $this->assertIdentical($result, $expect);
  29         $this->assertIdentical($this->context->get('StyleBlocks'), $styles);
  30     }
  31
  32     function test_extractStyleBlocks_preserve() {
  33         $this->assertExtractStyleBlocks('Foobar');
  34     }
  35
  36     function test_extractStyleBlocks_allStyle() {
  37         $this->assertExtractStyleBlocks('<style>foo</style>', '', array('foo'));
  38     }
  39
  40     function test_extractStyleBlocks_multipleBlocks() {
  41         $this->assertExtractStyleBlocks(
  42           "<style>1</style><style>2</style>NOP<style>4</style>",
  43           "NOP",
  44           array('1', '2', '4')
  45         );
  46     }
  47
  48     function test_extractStyleBlocks_blockWithAttributes() {
  49         $this->assertExtractStyleBlocks(
  50           '<style type="text/css">css</style>',
  51           '',
  52           array('css')
  53         );
  54     }
  55
  56     function test_extractStyleBlocks_styleWithPadding() {
  57         $this->assertExtractStyleBlocks(
  58           "Alas<styled>Awesome</styled>\n<style>foo</style> Trendy!",
  59           "Alas<styled>Awesome</styled>\n Trendy!",
  60           array('foo')
  61         );
  62     }
  63
  64     function assertCleanCSS($input, $expect = true) {
  65         $filter = new HTMLPurifier_Filter_ExtractStyleBlocks();
  66         if ($expect === true) $expect = $input;
  67         $this->normalize($input);
  68         $this->normalize($expect);
  69         $result = $filter->cleanCSS($input, $this->config, $this->context);
  70         $this->assertIdentical($result, $expect);
  71     }
  72
  73     function test_cleanCSS_malformed() {
  74         $this->assertCleanCSS('</style>', '');
  75     }
  76
  77     function test_cleanCSS_selector() {
  78         $this->assertCleanCSS("a .foo #id div.cl#foo {\nfont-weight:700;\n}");
  79     }
  80
  81     function test_cleanCSS_angledBrackets() {
  82         $this->assertCleanCSS(
  83             ".class {\nfont-family:'</style>';\n}",
  84             ".class {\nfont-family:\"\\3C /style\\3E \";\n}"
  85         );
  86     }
  87
  88     function test_cleanCSS_angledBrackets2() {
  89         // CSSTidy's behavior in this case is wrong, and should be fixed
  90         //$this->assertCleanCSS(
  91         //    "span[title=\"</style>\"] {\nfont-size:12pt;\n}",
  92         //    "span[title=\"\\3C /style\\3E \"] {\nfont-size:12pt;\n}"
  93         //);
  94     }
  95
  96     function test_cleanCSS_bogus() {
  97         $this->assertCleanCSS("div {bogus:tree;}", "div {\n}");
  98     }
  99
 100     function test_cleanCSS_escapeCodes() {
 101         $this->assertCleanCSS(
 102             ".class {\nfont-family:\"\\3C /style\\3E \";\n}"
 103         );
 104     }
 105
 106     function test_cleanCSS_noEscapeCodes() {
 107         $this->config->set('Filter.ExtractStyleBlocks.Escaping', false);
 108         $this->assertCleanCSS(
 109             ".class {\nfont-family:\"</style>\";\n}"
 110         );
 111     }
 112
 113     function test_cleanCSS_scope() {
 114         $this->config->set('Filter.ExtractStyleBlocks.Scope', '#foo');
 115         $this->assertCleanCSS(
 116             "p {\ntext-indent:1em;\n}",
 117             "#foo p {\ntext-indent:1em;\n}"
 118         );
 119     }
 120
 121     function test_cleanCSS_scopeWithSelectorCommas() {
 122         $this->config->set('Filter.ExtractStyleBlocks.Scope', '#foo');
 123         $this->assertCleanCSS(
 124             "b, i {\ntext-decoration:underline;\n}",
 125             "#foo b, #foo i {\ntext-decoration:underline;\n}"
 126         );
 127     }
 128
 129     function test_cleanCSS_scopeWithNaughtySelector() {
 130         $this->config->set('Filter.ExtractStyleBlocks.Scope', '#foo');
 131         $this->assertCleanCSS("  + p {\ntext-indent:1em;\n}", '');
 132     }
 133
 134     function test_cleanCSS_scopeWithMultipleNaughtySelectors() {
 135         $this->config->set('Filter.ExtractStyleBlocks.Scope', '#foo');
 136         $this->assertCleanCSS("  ++ ++ p {\ntext-indent:1em;\n}", '');
 137     }
 138
 139     function test_cleanCSS_scopeWithCommas() {
 140         $this->config->set('Filter.ExtractStyleBlocks.Scope', '#foo, .bar');
 141         $this->assertCleanCSS(
 142             "p {\ntext-indent:1em;\n}",
 143             "#foo p, .bar p {\ntext-indent:1em;\n}"
 144         );
 145     }
 146
 147     function test_cleanCSS_scopeAllWithCommas() {
 148         $this->config->set('Filter.ExtractStyleBlocks.Scope', '#foo, .bar');
 149         $this->assertCleanCSS(
 150             "p, div {\ntext-indent:1em;\n}",
 151             "#foo p, #foo div, .bar p, .bar div {\ntext-indent:1em;\n}"
 152         );
 153     }
 154
 155     function test_cleanCSS_scopeWithConflicts() {
 156         $this->config->set('Filter.ExtractStyleBlocks.Scope', 'p');
 157         $this->assertCleanCSS(
 158 "div {
 159 text-align:right;
 160 }
 161
 162 p div {
 163 text-align:left;
 164 }",
 165
 166 "p div {
 167 text-align:right;
 168 }
 169
 170 p p div {
 171 text-align:left;
 172 }"
 173         );
 174     }
 175
 176     function test_removeComments() {
 177         $this->assertCleanCSS(
 178 "<!--
 179 div {
 180 text-align:right;
 181 }
 182 -->",
 183 "div {
 184 text-align:right;
 185 }"
 186         );
 187     }
 188
 189 }
 190
 191 // vim: et sw=4 sts=4