third_party/WebKit/LayoutTests/fast/dom/htmloptionscollection-enumerated-properties.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <script src="../../resources/js-test.js"></script>
   5 <select id="testSelect">
   6   <option value="volvo" id="id1" name="name1a">Volvo</option>
   7   <option value="saab" id="id1" name="name1b">Saab</option>
   8   <option value="mercedes" id="id2" name="name2">Mercedes</option>
   9   <option value="audi" id="id3" name="name3">Audi</option>
  10   <option value="renault" id="id4" name="name3">Renault</option>
  11 </select>
  12
  13 <script>
  14 description("This tests verifies the enumerated properties on HTMLOptionsCollection and their order.");
  15
  16 var testSelect = document.getElementById("testSelect");
  17 var htmlOptionsCollection = testSelect.options;
  18 shouldBe("htmlOptionsCollection.__proto__", "HTMLOptionsCollection.prototype");
  19 shouldBe("htmlOptionsCollection.__proto__.__proto__", "HTMLCollection.prototype");
  20 shouldBe("htmlOptionsCollection.length", "5");
  21
  22 // As per http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmloptionscollection:
  23 // - The object's supported property indices are as defined for HTMLCollection objects.
  24 // - The supported property names consist of the non-empty values of all the id and name attributes of all the elements
  25 //   represented by the collection, in tree order, ignoring later duplicates, with the id of an element preceding its
  26 //   name if it contributes both, they differ from each other, and neither is the duplicate of an earlier entry.
  27 var expectedEnumeratedProperties = ["0", "1", "2", "3", "4", "length", "selectedIndex", "id1", "name1a", "name1b", "id2", "name2", "id3", "name3", "id4", "namedItem", "add", "remove", "item"].sort();
  28
  29 var enumeratedProperties = [];
  30 for (var property in htmlOptionsCollection) {
  31   enumeratedProperties[enumeratedProperties.length] = property;
  32 }
  33 enumeratedProperties.sort();
  34 shouldBe("enumeratedProperties", "expectedEnumeratedProperties");
  35 </script>
  36 </body>
  37 </html>