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https://bugzilla.mozilla.org/show_bug.cgi?id=1021066
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  <title>Test for Bug 1021066</title>
  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1021066">Mozilla Bug 1021066</a>
<p id="display"></p>
<div id="content" style="display: none">
<iframe id="t" src="http://example.org/tests/dom/bindings/test/file_proxies_via_xray.html"></iframe>
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<pre id="test">
<script type="application/javascript">

/** Test for Bug 1021066 **/

function test() {
  "use strict"; // So we'll get exceptions on sets
  var doc = document.getElementById("t").contentWindow.document;
  ok(!("x" in doc), "Should have an Xray here");
  is(doc.x, undefined, "Really should have an Xray here");
  is(doc.wrappedJSObject.x, 5, "And wrapping the right thing");

  // Test overridebuiltins binding without named setter
  is(doc.y, doc.getElementById("y"),
     "Named getter should work on Document");
  try {
    doc.z = 5;
    ok(false, "Should have thrown on set of readonly property on Document");
  } catch (e) {
    ok(/read-only/.test(e.message),
       "Threw the right exception on set of readonly property on Document");
  }

  doc.w = 5;
  is(doc.w, 5, "Should be able to set things that are not named props");

  // Test non-overridebuiltins binding without named setter
  var l = doc.getElementsByTagName("img");
  is(l.y, doc.getElementById("y"),
     "Named getter should work on HTMLCollection");
  try {
    l.z = 5;
    ok(false, "Should have thrown on set of readonly property on HTMLCollection");
  } catch (e) {
    ok(/read-only/.test(e.message),
       "Should throw the right exception on set of readonly property on HTMLCollection");
  }
  try {
    l[10] = 5;
    ok(false, "Should have thrown on set of indexed property on HTMLCollection");
  } catch (e) {
    ok(/doesn't have an indexed property setter/.test(e.message),
       "Should throw the right exception on set of indexed property on HTMLCollection");
  }

  // Test overridebuiltins binding with named setter
  var d = doc.documentElement.dataset;
  d.foo = "bar";
  // Check that this actually got passed on to the underlying object.
  is(d.wrappedJSObject.foo, "bar",
     "Set should get forwarded to the underlying object");
  is(doc.documentElement.getAttribute("data-foo"), "bar",
     "Attribute setter should have been called");
  d.foo = "baz";
  // Check that this actually got passed on to the underlying object.
  is(d.wrappedJSObject.foo, "baz",
     "Set should get forwarded to the underlying object again");
  is(doc.documentElement.getAttribute("data-foo"), "baz",
     "Attribute setter should have been called again");

  // Test non-overridebuiltins binding with named setter
  var s = doc.defaultView.localStorage;
  s.test_proxies_via_xray = "bar";
  // Check that this actually got passed on to the underlying object.
  is(s.wrappedJSObject.test_proxies_via_xray, "bar",
     "Set should get forwarded to the underlying object without overridebuiltins");
  s.test_proxies_via_xray = "baz";
  // Check that this actually got passed on to the underlying object.
  is(s.wrappedJSObject.test_proxies_via_xray, "baz",
     "Set should get forwarded to the underlying object again without overridebuiltins");

  SimpleTest.finish();
}

SimpleTest.waitForExplicitFinish();
addLoadEvent(test);

</script>
</pre>
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