third_party/WebKit/LayoutTests/fast/dom/Element/client-rect-list-argument.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <link rel="help" href="http://dev.w3.org/csswg/cssom-view/#dom-clientrectlist-item">
   5 <script src="../../../resources/js-test.js"></script>
   6 <style>
   7 #testArea {
   8     width: 300px;
   9 }
  10 #inner {
  11     width: 200px;
  12     height: 200px;
  13 }
  14 .testBox {
  15     background-color: green;
  16 }
  17 </style>
  18 </head>
  19 <body>
  20 <div id="testArea">
  21   <p>14. Block in inline</p>      <span id="testElement" class="testBox">Lorem<div id="inner"></div>ipsum</span>
  22 </div>
  23 <script>
  24 description("Tests that the ClientRectList.item() argument is correctly validated.");
  25
  26 var clientRects = document.getElementById("testElement").getClientRects();
  27 shouldBe("clientRects.__proto__", "ClientRectList.prototype");
  28
  29 shouldBe("clientRects.length", "3");
  30 shouldNotBe("clientRects.item(0)", "null");
  31 shouldNotBe("clientRects.item(1)", "null");
  32 shouldNotBe("clientRects.item(2)", "null");
  33 shouldThrow("clientRects.item()", '"TypeError: Failed to execute \'item\' on \'ClientRectList\': 1 argument required, but only 0 present."');
  34 shouldBe("clientRects.item(-4294967294)", "clientRects.item(2)"); // -4294967294 wraps to 2.
  35
  36 // According to the specification, we should throw an IndexSizeError exception when index is
  37 // greater than the number of ClientRect objects associated with the object.
  38 // However, we currently just return null like Firefox 22.
  39 shouldBeNull("clientRects.item(3)");
  40 shouldBeNull("clientRects.item(999)");
  41 shouldBeNull("clientRects.item(-1)");
  42
  43 </script>
  44 </body>
  45 </html>