| <!doctype html> |
| <meta charset=utf-8> |
| <link rel=help href=https://dom.spec.whatwg.org/#interface-htmlcollection> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| |
| <div id=log></div> |
| |
| <!-- with no attribute --> |
| <span></span> |
| |
| <!-- with `id` attribute --> |
| <span id=''></span> |
| <span id='some-id'></span> |
| <span id='some-id'></span><!-- to ensure no duplicates --> |
| |
| <!-- with `name` attribute --> |
| <span name=''></span> |
| <span name='some-name'></span> |
| <span name='some-name'></span><!-- to ensure no duplicates --> |
| |
| <!-- with `name` and `id` attribute --> |
| <span id='another-id' name='another-name'></span> |
| |
| <script> |
| test(function () { |
| var elements = document.getElementsByTagName("span"); |
| assert_array_equals( |
| Object.getOwnPropertyNames(elements), |
| ['0', '1', '2', '3', '4', '5', '6', '7', 'some-id', 'some-name', 'another-id', 'another-name'] |
| ); |
| }, 'Object.getOwnPropertyNames on HTMLCollection'); |
| |
| test(function () { |
| var elem = document.createElementNS('some-random-namespace', 'foo'); |
| this.add_cleanup(function () {elem.remove();}); |
| elem.setAttribute("name", "some-name"); |
| document.body.appendChild(elem); |
| |
| var elements = document.getElementsByTagName("foo"); |
| assert_array_equals(Object.getOwnPropertyNames(elements), ['0']); |
| }, 'Object.getOwnPropertyNames on HTMLCollection with non-HTML namespace'); |
| |
| test(function () { |
| var elem = document.createElement('foo'); |
| this.add_cleanup(function () {elem.remove();}); |
| document.body.appendChild(elem); |
| |
| var elements = document.getElementsByTagName("foo"); |
| elements.someProperty = "some value"; |
| |
| assert_array_equals(Object.getOwnPropertyNames(elements), ['0', 'someProperty']); |
| }, 'Object.getOwnPropertyNames on HTMLCollection with expando object'); |
| |
| test(function() { |
| var elements = document.getElementsByTagName("span"); |
| var old_item = elements["some-id"]; |
| var old_desc = Object.getOwnPropertyDescriptor(elements, "some-id"); |
| assert_equals(old_desc.value, old_item); |
| assert_false(old_desc.enumerable); |
| assert_true(old_desc.configurable); |
| assert_false(old_desc.writable); |
| |
| elements["some-id"] = 5; |
| assert_equals(elements["some-id"], old_item); |
| assert_throws(new TypeError(), function() { |
| "use strict"; |
| elements["some-id"] = 5; |
| }); |
| assert_throws(new TypeError(), function() { |
| Object.defineProperty(elements, "some-id", { value: 5 }); |
| }); |
| |
| delete elements["some-id"]; |
| assert_equals(elements["some-id"], old_item); |
| |
| assert_throws(new TypeError(), function() { |
| "use strict"; |
| delete elements["some-id"]; |
| }); |
| assert_equals(elements["some-id"], old_item); |
| |
| }, 'Trying to set an expando that would shadow an already-existing named property'); |
| |
| test(function() { |
| var elements = document.getElementsByTagName("span"); |
| var old_item = elements["new-id"]; |
| var old_desc = Object.getOwnPropertyDescriptor(elements, "new-id"); |
| assert_equals(old_item, undefined); |
| assert_equals(old_desc, undefined); |
| |
| elements["new-id"] = 5; |
| assert_equals(elements["new-id"], 5); |
| |
| var span = document.createElement("span"); |
| this.add_cleanup(function () {span.remove();}); |
| span.id = "new-id"; |
| document.body.appendChild(span); |
| |
| assert_equals(elements.namedItem("new-id"), span); |
| assert_equals(elements["new-id"], 5); |
| |
| delete elements["new-id"]; |
| assert_equals(elements["new-id"], span); |
| }, 'Trying to set an expando that shadows a named property that gets added later'); |
| |
| test(function() { |
| var elements = document.getElementsByTagName("span"); |
| var old_item = elements["new-id2"]; |
| var old_desc = Object.getOwnPropertyDescriptor(elements, "new-id2"); |
| assert_equals(old_item, undefined); |
| assert_equals(old_desc, undefined); |
| |
| Object.defineProperty(elements, "new-id2", { configurable: false, writable: |
| false, value: 5 }); |
| assert_equals(elements["new-id2"], 5); |
| |
| var span = document.createElement("span"); |
| this.add_cleanup(function () {span.remove();}); |
| span.id = "new-id2"; |
| document.body.appendChild(span); |
| |
| assert_equals(elements.namedItem("new-id2"), span); |
| assert_equals(elements["new-id2"], 5); |
| |
| delete elements["new-id2"]; |
| assert_equals(elements["new-id2"], 5); |
| |
| assert_throws(new TypeError(), function() { |
| "use strict"; |
| delete elements["new-id2"]; |
| }); |
| assert_equals(elements["new-id2"], 5); |
| }, 'Trying to set a non-configurable expando that shadows a named property that gets added later'); |
| </script> |
