diff -r 000000000000 -r 6474c204b198 netwerk/test/unit/test_gzipped_206.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/test/unit/test_gzipped_206.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,85 @@
+Cu.import("resource://testing-common/httpd.js");
+
+var httpserver = null;
+
+// testString = "This is a slightly longer test\n";
+const responseBody = [0x1f, 0x8b, 0x08, 0x08, 0xef, 0x70, 0xe6, 0x4c, 0x00, 0x03, 0x74, 0x65, 0x78, 0x74, 0x66, 0x69,
+                     0x6c, 0x65, 0x2e, 0x74, 0x78, 0x74, 0x00, 0x0b, 0xc9, 0xc8, 0x2c, 0x56, 0x00, 0xa2, 0x44, 0x85,
+                     0xe2, 0x9c, 0xcc, 0xf4, 0x8c, 0x92, 0x9c, 0x4a, 0x85, 0x9c, 0xfc, 0xbc, 0xf4, 0xd4, 0x22, 0x85,
+                     0x92, 0xd4, 0xe2, 0x12, 0x2e, 0x2e, 0x00, 0x00, 0xe5, 0xe6, 0xf0, 0x20, 0x00, 0x00, 0x00];
+
+function make_channel(url, callback, ctx) {
+  var ios = Cc["@mozilla.org/network/io-service;1"].
+            getService(Ci.nsIIOService);
+  return ios.newChannel(url, "", null);
+}
+
+var doRangeResponse = false;
+
+function cachedHandler(metadata, response) {
+  response.setHeader("Content-Type", "application/x-gzip", false);
+  response.setHeader("Content-Encoding", "gzip", false);
+  response.setHeader("ETag", "Just testing");
+  response.setHeader("Cache-Control", "max-age=3600000"); // avoid validation
+  response.setHeader("Content-Length", "" + responseBody.length);
+
+  var body = responseBody;
+
+  if (doRangeResponse) {
+    do_check_true(metadata.hasHeader("Range"));
+    var matches = metadata.getHeader("Range").match(/^\s*bytes=(\d+)?-(\d+)?\s*$/);
+    var from = (matches[1] === undefined) ? 0 : matches[1];
+    var to = (matches[2] === undefined) ? responseBody.length - 1 : matches[2];
+    if (from >= responseBody.length) {
+      response.setStatusLine(metadata.httpVersion, 416, "Start pos too high");
+      response.setHeader("Content-Range", "*/" + responseBody.length, false);
+      return;
+    }
+    body = body.slice(from, to + 1);
+    // always respond to successful range requests with 206
+    response.setStatusLine(metadata.httpVersion, 206, "Partial Content");
+    response.setHeader("Content-Range", from + "-" + to + "/" + responseBody.length, false);
+  } else {
+    response.setHeader("Accept-Ranges", "bytes");
+    body = body.slice(0, 17); // slice off a piece to send first
+    doRangeResponse = true;
+  }
+
+  var bos = Cc["@mozilla.org/binaryoutputstream;1"]
+      .createInstance(Ci.nsIBinaryOutputStream);
+  bos.setOutputStream(response.bodyOutputStream);
+
+  response.processAsync();
+  bos.writeByteArray(body, body.length);
+  response.finish();
+}
+
+function continue_test(request, data) {
+  do_check_true(17 == data.length);
+  var chan = make_channel("http://localhost:" +
+                          httpserver.identity.primaryPort + "/cached/test.gz");
+  chan.asyncOpen(new ChannelListener(finish_test, null, CL_EXPECT_GZIP), null);
+}
+
+function finish_test(request, data, ctx) {
+  do_check_eq(request.status, 0);
+  do_check_eq(data.length, responseBody.length);
+  for (var i = 0; i < data.length; ++i) {
+    do_check_eq(data.charCodeAt(i), responseBody[i]);
+  }
+  httpserver.stop(do_test_finished);
+}
+
+function run_test() {
+  httpserver = new HttpServer();
+  httpserver.registerPathHandler("/cached/test.gz", cachedHandler);
+  httpserver.start(-1);
+
+  // wipe out cached content
+  evict_cache_entries();
+
+  var chan = make_channel("http://localhost:" +
+                          httpserver.identity.primaryPort + "/cached/test.gz");
+  chan.asyncOpen(new ChannelListener(continue_test, null, CL_EXPECT_GZIP), null);
+  do_test_pending();
+}