diff -r 000000000000 -r 6474c204b198 netwerk/test/unit/test_bug536324_64bit_content_length.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/test/unit/test_bug536324_64bit_content_length.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,63 @@
+/* Test to ensure our 64-bit content length implementation works, at least for
+   a simple HTTP case */
+
+Cu.import("resource://testing-common/httpd.js");
+
+// This C-L is significantly larger than (U)INT32_MAX, to make sure we do
+// 64-bit properly.
+const CONTENT_LENGTH = "1152921504606846975";
+
+var httpServer = null;
+
+var listener = {
+  onStartRequest: function (req, ctx) {
+  },
+
+  onDataAvailable: function (req, ctx, stream, off, count) {
+    do_check_eq(req.getResponseHeader("Content-Length"), CONTENT_LENGTH);
+
+    // We're done here, cancel the channel
+    req.cancel(NS_BINDING_ABORT);
+  },
+
+  onStopRequest: function (req, ctx, stat) {
+    httpServer.stop(do_test_finished);
+  }
+};
+
+function hugeContentLength(metadata, response) {
+  var text = "abcdefghijklmnopqrstuvwxyz";
+  var bytes_written = 0;
+
+  response.seizePower();
+
+  response.write("HTTP/1.1 200 OK\r\n");
+  response.write("Content-Length: " + CONTENT_LENGTH + "\r\n");
+  response.write("Connection: close\r\n");
+  response.write("\r\n");
+
+  // Write enough data to ensure onDataAvailable gets called
+  while (bytes_written < 4096) {
+    response.write(text);
+    bytes_written += text.length;
+  }
+
+  response.finish();
+}
+
+function test_hugeContentLength() {
+  var ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
+  var chan = ios.newChannel("http://localhost:" +
+                            httpServer.identity.primaryPort + "/", null, null)
+                .QueryInterface(Ci.nsIHttpChannel);
+  chan.asyncOpen(listener, null);
+}
+
+add_test(test_hugeContentLength);
+
+function run_test() {
+  httpServer = new HttpServer();
+  httpServer.registerPathHandler("/", hugeContentLength);
+  httpServer.start(-1);
+  run_next_test();
+}