gecko/js/xpconnect/tests/mochitest/test_bug484107.html

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https://bugzilla.mozilla.org/show_bug.cgi?id=484107
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<head>
  <title>Test for Bug 484107</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=484107">Mozilla Bug 484107</a>
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<div id="content" style="display: none">

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<pre id="test">
<script type="application/javascript">

/** Test for Bug 484107 **/

  var text = "first group",
      xpcWin = new XPCSafeJSObjectWrapper(window);
  function get$1() { return RegExp.$1 };

  function reset() {
    var match = /(.*)/.exec(text);
    if (!reset.skipStupidTests) {
      reset.skipStupidTests = true;
      ok(match, "No match?");
      is(match[1], text, "Bad match?");
      is(text, RegExp.$1, "RegExp.$1 missing?");
      is(text, get$1(), "RegExp.$1 inaccessible?");
    }
  }

  function test_XPC_SJOW_Call() {
    isnot(text, xpcWin.get$1(), "Able to see RegExp.$1 from wrapped method.");
    is("", xpcWin.get$1(), "Saw something other than an empty string for " +
                           "RegExp.$1 from wrapped method.");
    is(text, window.get$1(), "Unable to see RegExp.$1 from non-wrapped method.");
  }

  function test_XPC_SJOW_Call_foreign_obj() {
    var obj = {
      xpcGet: xpcWin.get$1,
      rawGet: window.get$1
    };
    isnot(text, obj.xpcGet(), "obj.xpcGet() returned matched text.");
    is("", obj.xpcGet(), "obj.xpcGet() returned something other than the empty string.");
    is(text, obj.rawGet(), "obj.rawGet() did not return matched text.");
  }

  function test_XPC_SJOW_toString() {
    var str = new XPCSafeJSObjectWrapper({
      toString: function() { return RegExp.$1 }
    }) + "";
    isnot(text, str, "toString() returned the matched text.");
    is("", str, "toString() returned something other than the empty string.");
  }

  function test_XPC_SJOW_GetOrSetProperty() {
    window.__defineGetter__("firstMatch", function() { return RegExp.$1 });
    isnot(text, xpcWin.firstMatch, "Getter xpcWin.firstMatch returned matched text.");
    is("", xpcWin.firstMatch,
       "Getter xpcWin.firstMatch returned something other than the empty string.");
    is(text, window.firstMatch, "Getter window.firstMatch did not return matched text.");
  }

  function test_XPC_SJOW_Create() {
    function ctor() {
      this.match = RegExp.$1;
      return this; // XXX Why is this necessary?
    }
    ctor.prototype.getMatch = function() { return this.match };
    var xpcCtor = new XPCSafeJSObjectWrapper(ctor),
        match = (new xpcCtor).getMatch();
    isnot(text, match, "(new xpcCtor).getMatch() was the matched text.");
    is("", match, "(new xpcCtor).getMatch() was not the empty string.");
  }

  var tests = [
    test_XPC_SJOW_Call,
    test_XPC_SJOW_Call_foreign_obj,
    test_XPC_SJOW_toString,
    test_XPC_SJOW_GetOrSetProperty,
    test_XPC_SJOW_Create
  ];

  for (var i = 0; i < tests.length; i++) {
    reset();
    tests[i]();
    is(text, RegExp.$1, "RegExp.$1 was clobbered.");
  }

</script>
</pre>
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