DOMTokenList-value.html

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This WPT test may be referenced by the following Test IDs:
- /dom/lists/DOMTokenList-value.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>DOMTokenList value</title>

<link rel=help href="https://dom.spec.whatwg.org/#dom-domtokenlist-value">

<link rel=author title=Tangresh href="mailto:dmenzi@tangresh.ch">

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

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

<span class="   a  a b "></span>

<script>

test(function() {

  assert_equals(String(document.createElement("span").classList.value), "",

                "classList.value should return the empty list for an undefined class attribute");

  var span = document.querySelector("span");

  assert_equals(span.classList.value, "   a  a b ",

                "value should return the literal value");

  span.classList.value = " foo bar foo ";

  assert_equals(span.classList.value, " foo bar foo ",

                "assigning value should set the literal value");

  assert_equals(span.classList.length, 2,

                "length should be the number of tokens");

  assert_class_string(span.classList, "DOMTokenList");

  assert_class_string(span.classList.value, "String");

});

</script>