variable-names.html

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This WPT test may be referenced by the following Test IDs:
- /css/cssom/variable-names.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>Tests for handling of CSS Custom Property names</title>

<link rel="help" href="https://drafts.csswg.org/css-variables/#serializing-custom-props">

<meta name="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id="log"></div>

<script>

// Valid custom property names, before and after CSS escaping.

var valid_names = [

  ["--a", "--a"],

  ["--a;b", "--a\\;b"],

  ["---", "---"],

  ["--\\", "--\\\\"],

  ["--ab", "--\\61 b"],

  ["--0", "--\\30 "],

];

valid_names.forEach(function(t) {

  var name = t[0];

  var escaped_name = t[1];

  test(function() {

    var e = document.createElement("span");

    e.style = escaped_name + ":value";

    for (var after_refeeding = 0; after_refeeding <= 1; ++after_refeeding) {

      var desc_suffix = (after_refeeding ? " (after " : " (before ") +

                        "serialization/re-parsing)";

      assert_equals(e.style.length, 1,

                    "appears on specified style" + desc_suffix);

      assert_equals(e.style[0], name,

                    "name returned correctly from specified " +

                    "style indexed getter" + desc_suffix);

      assert_equals(e.style.getPropertyValue(name), "value",

                    "property value returned correctly from " +

                    "specified style getPropertyValue" + desc_suffix);

      e.style = e.style.cssText;

  }, "custom property '" + name + "'");

});

</script>