testing/web-platform/tests/css/css-variables/variable-reference-cssom.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4     <title>CSS variable references - via CSSOM</title>
   5
   6     <meta rel="author" title="Kevin Babbitt">
   7     <meta rel="author" title="Greg Whitworth">
   8     <link rel="author" title="Microsoft Corporation" href="http://microsoft.com" />
   9     <!-- This is not directly specified in the spec but should work -->
  10     <link rel="help" href="http://www.w3.org/TR/css-variables-1/#defining-variables">
  11
  12     <script src="/resources/testharness.js"></script>
  13     <script src="/resources/testharnessreport.js"></script>
  14 </head>
  15 <body>
  16
  17 <div id="target1"></div>
  18 <div id="target2" style="background-color: red;"></div>
  19
  20 <script type="text/javascript">
  21     "use strict";
  22
  23     // This test verifies that variable references are usable when set via CSSOM calls.
  24
  25     function TestCssom() {
  26         var target = document.getElementById("target1");
  27
  28         target.style.setProperty("background-color", "var(--prop)");
  29         assert_equals(target.style.backgroundColor, "var(--prop)", "background-color property value after calling setProperty");
  30         assert_equals(target.style.getPropertyValue("background-color"), "var(--prop)", "getPropertyValue('background-color') after calling setProperty");
  31
  32         target.style.removeProperty("background-color");
  33         assert_equals(target.style.backgroundColor, "", "background-color property value after calling removeProperty");
  34         assert_equals(target.style.getPropertyValue("background-color"), "", "getPropertyValue('background-color') after calling removeProperty");
  35     }
  36
  37     function TestCssomOverridingMarkup() {
  38         var target = document.getElementById("target1");
  39
  40         target.style.setProperty("background-color", "var(--prop)");
  41         assert_equals(target.style.backgroundColor, "var(--prop)", "background-color property value after calling setProperty");
  42         assert_equals(target.style.getPropertyValue("background-color"), "var(--prop)", "getPropertyValue('background-color') after calling setProperty");
  43
  44         target.style.removeProperty("background-color");
  45         assert_equals(target.style.backgroundColor, "", "background-color property value after calling removeProperty");
  46         assert_equals(target.style.getPropertyValue("background-color"), "", "getPropertyValue('background-color') after calling removeProperty");
  47     }
  48
  49     test(TestCssom, "Verify correct results using CSSOM");
  50     test(TestCssomOverridingMarkup, "Verify correct results with CSSOM overriding markup-set values");
  51 </script>
  52
  53 </body>
  54 </html>