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<!DOCTYPE HTML>
<meta charset=utf-8>
<title>DOMStringMap Test: Supported property names</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<div id="edge1" data-="012">Simple</div>
<div id="edge2" data-id-="012">Simple</div>
<div id="user" data-id="1234567890" data-user="johndoe" data-date-of-birth>
John Doe
</div>
<div id="user2" data-unique-id="1234567890"> Jane Doe </div>
<div id="user3" data-unique-id="4324324241"> Jim Doe </div>
<script>
test(function() {
var element = document.querySelector('#edge1');
assert_array_equals(Object.getOwnPropertyNames(element.dataset),
[""]);
}, "Object.getOwnPropertyNames on DOMStringMap, empty data attribute");
test(function() {
var element = document.querySelector('#edge2');
assert_array_equals(Object.getOwnPropertyNames(element.dataset),
["id-"]);
}, "Object.getOwnPropertyNames on DOMStringMap, data attribute trailing hyphen");
test(function() {
var element = document.querySelector('#user');
assert_array_equals(Object.getOwnPropertyNames(element.dataset),
['id', 'user', 'dateOfBirth']);
}, "Object.getOwnPropertyNames on DOMStringMap, multiple data attributes");
test(function() {
var element = document.querySelector('#user2');
element.dataset.middleName = "mark";
assert_array_equals(Object.getOwnPropertyNames(element.dataset),
['uniqueId', 'middleName']);
}, "Object.getOwnPropertyNames on DOMStringMap, attribute set on dataset in JS");
test(function() {
var element = document.querySelector('#user3');
element.setAttribute("data-age", 30);
assert_array_equals(Object.getOwnPropertyNames(element.dataset),
['uniqueId', 'age']);
}, "Object.getOwnPropertyNames on DOMStringMap, attribute set on element in JS");
</script>
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