diff -r 000000000000 -r 6474c204b198 netwerk/test/unit/test_reentrancy.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/test/unit/test_reentrancy.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,105 @@
+Cu.import("resource://testing-common/httpd.js");
+
+XPCOMUtils.defineLazyGetter(this, "URL", function() {
+  return "http://localhost:" + httpserver.identity.primaryPort;
+});
+
+var httpserver = new HttpServer();
+var testpath = "/simple";
+var httpbody = "<?xml version='1.0' ?><root>0123456789</root>";
+
+function syncXHR()
+{
+  var xhr = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
+            .createInstance(Ci.nsIXMLHttpRequest);
+  xhr.open("GET", URL + testpath, false);
+  xhr.send(null);    
+}
+
+const MAX_TESTS = 2;
+
+var listener = {
+  _done_onStart: false,
+  _done_onData: false,
+  _test: 0,
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Components.interfaces.nsIStreamListener) ||
+        iid.equals(Components.interfaces.nsIRequestObserver) ||
+        iid.equals(Components.interfaces.nsISupports))
+      return this;
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  },
+
+  onStartRequest: function(request, ctx) {
+    switch(this._test) {
+      case 0:
+        request.suspend();
+        syncXHR();
+        request.resume();
+        break;
+      case 1:
+        request.suspend();
+        syncXHR();
+        do_execute_soon(function() request.resume());
+        break;
+      case 2:
+        do_execute_soon(function() request.suspend());
+        do_execute_soon(function() request.resume());
+        syncXHR();
+        break;
+    }
+    
+    this._done_onStart = true;
+  },
+
+  onDataAvailable: function(request, context, stream, offset, count) {
+    do_check_true(this._done_onStart);
+    read_stream(stream, count);
+    this._done_onData = true;
+  },
+
+  onStopRequest: function(request, ctx, status) {
+    do_check_true(this._done_onData);
+    this._reset();
+    if (this._test <= MAX_TESTS)
+      next_test();
+    else
+      httpserver.stop(do_test_finished);      
+  },
+
+  _reset: function() {
+    this._done_onStart = false;
+    this._done_onData = false;
+    this._test++;
+  }
+};
+
+function makeChan(url) {
+  var ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
+  var chan = ios.newChannel(url, null, null).QueryInterface(Ci.nsIHttpChannel);
+  return chan;
+}
+
+function next_test()
+{
+  var chan = makeChan(URL + testpath);
+  chan.QueryInterface(Ci.nsIRequest);
+  chan.asyncOpen(listener, null);
+}
+
+function run_test()
+{
+  httpserver.registerPathHandler(testpath, serverHandler);
+  httpserver.start(-1);
+
+  next_test();
+
+  do_test_pending();
+}
+
+function serverHandler(metadata, response)
+{
+  response.setHeader("Content-Type", "text/xml", false);
+  response.bodyOutputStream.write(httpbody, httpbody.length);
+}