<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=783129
-->
<head>
  <title>Test for customElements.define for elements created by the parser</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script>

var uncaughtError;
window.onerror = function(message, url, lineNumber, columnNumber, error) {
  uncaughtError = error;
};

var isConnectedCallbackCalled = false;
class XButton extends HTMLButtonElement {
  connectedCallback() {
    ok(!isConnectedCallbackCalled, "ConnectedCallback should only be called once.");
    is(this.tagName, "BUTTON", "Only the <button> element should be upgraded.");
    isConnectedCallbackCalled = true;
  }
};

customElements.define("x-button", XButton, { extends: "button" });

class XDiv extends HTMLDivElement {
  constructor() {
    // Queue a task to check error and callbacks.
    setTimeout(() => {
      ok(isConnectedCallbackCalled, "ConnectedCallback should be called.");
      ok(uncaughtError instanceof TypeError,
       "TypeError should be filed for upgrading <x-div> element.");
      SimpleTest.finish();
    }, 0);
    super();
  }

  connectedCallback() {
    ok(false, "Connected callback for x-div should not be called.");
  }
};

customElements.define("x-div", XDiv);

SimpleTest.waitForExplicitFinish();

</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=783129">Bug 783129</a>
<button is="x-button"></button><!-- should be upgraded -->
<x-button></x-button><!-- should not be upgraded -->
<span is="x-button"></span><!-- should not be upgraded -->
<div is="x-div"></div><!-- should not be upgraded -->
<x-div></x-div><!-- should be upgraded, but failed -->
<script>
</script>
</body>
</html>
