netwerk/test/unit/test_throttlechannel.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

// Test nsIThrottledInputChannel interface.

Cu.import("resource://testing-common/httpd.js");
Cu.import("resource://gre/modules/NetUtil.jsm");

function test_handler(metadata, response) {
  const originalBody = "the response";
  response.setHeader("Content-Type", "text/html", false);
  response.setStatusLine(metadata.httpVersion, 200, "OK");
  response.bodyOutputStream.write(originalBody, originalBody.length);
}

function make_channel(url) {
  return NetUtil.newChannel({uri: url, loadUsingSystemPrincipal: true})
                .QueryInterface(Components.interfaces.nsIHttpChannel);
}

function run_test() {
  let httpserver = new HttpServer();
  httpserver.start(-1);
  const PORT = httpserver.identity.primaryPort;

  httpserver.registerPathHandler("/testdir", test_handler);

  let channel = make_channel("http://localhost:" + PORT + "/testdir");

  let tq = Cc["@mozilla.org/network/throttlequeue;1"]
      .createInstance(Ci.nsIInputChannelThrottleQueue);
  tq.init(1000, 1000);

  let tic = channel.QueryInterface(Ci.nsIThrottledInputChannel);
  tic.throttleQueue = tq;

  channel.asyncOpen2(new ChannelListener(() => {
    ok(tq.bytesProcessed() > 0, "throttled queue processed some bytes");

    httpserver.stop(do_test_finished);
  }));

  do_test_pending();
}