netwerk/test/unit/test_throttlechannel.js

   1 // Test nsIThrottledInputChannel interface.
   2 "use strict";
   3
   4 const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
   5
   6 function test_handler(metadata, response) {
   7   const originalBody = "the response";
   8   response.setHeader("Content-Type", "text/html", false);
   9   response.setStatusLine(metadata.httpVersion, 200, "OK");
  10   response.bodyOutputStream.write(originalBody, originalBody.length);
  11 }
  12
  13 function make_channel(url) {
  14   return NetUtil.newChannel({
  15     uri: url,
  16     loadUsingSystemPrincipal: true,
  17   }).QueryInterface(Ci.nsIHttpChannel);
  18 }
  19
  20 function run_test() {
  21   let httpserver = new HttpServer();
  22   httpserver.start(-1);
  23   const PORT = httpserver.identity.primaryPort;
  24
  25   httpserver.registerPathHandler("/testdir", test_handler);
  26
  27   let channel = make_channel("http://localhost:" + PORT + "/testdir");
  28
  29   let tq = Cc["@mozilla.org/network/throttlequeue;1"].createInstance(
  30     Ci.nsIInputChannelThrottleQueue
  31   );
  32   tq.init(1000, 1000);
  33
  34   let tic = channel.QueryInterface(Ci.nsIThrottledInputChannel);
  35   tic.throttleQueue = tq;
  36
  37   channel.asyncOpen(
  38     new ChannelListener(() => {
  39       ok(tq.bytesProcessed() > 0, "throttled queue processed some bytes");
  40
  41       httpserver.stop(do_test_finished);
  42     })
  43   );
  44
  45   do_test_pending();
  46 }