The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/devtools/server/tests/unit/test_eventlooplag_actor.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,59 @@
     1.4 +/* Any copyright is dedicated to the Public Domain.
     1.5 +   http://creativecommons.org/publicdomain/zero/1.0/ */
     1.6 +
     1.7 +/**
     1.8 + * Test the eventLoopLag actor.
     1.9 + */
    1.10 +
    1.11 +"use strict";
    1.12 +
    1.13 +function run_test()
    1.14 +{
    1.15 +  let {EventLoopLagFront} = devtools.require("devtools/server/actors/eventlooplag");
    1.16 +
    1.17 +  DebuggerServer.init(function () { return true; });
    1.18 +  DebuggerServer.addBrowserActors();
    1.19 +
    1.20 +  // As seen in EventTracer.cpp
    1.21 +  let threshold = 20;
    1.22 +  let interval = 10;
    1.23 +
    1.24 +
    1.25 +  let front;
    1.26 +  let client = new DebuggerClient(DebuggerServer.connectPipe());
    1.27 +
    1.28 +  // Start tracking event loop lags.
    1.29 +  client.connect(function () {
    1.30 +    client.listTabs(function(resp) {
    1.31 +      front = new EventLoopLagFront(client, resp);
    1.32 +      front.start().then(success => {
    1.33 +        do_check_true(success);
    1.34 +        front.once("event-loop-lag", gotLagEvent);
    1.35 +        do_execute_soon(lag);
    1.36 +      });
    1.37 +    });
    1.38 +  });
    1.39 +
    1.40 +  // Force a lag
    1.41 +  function lag() {
    1.42 +    let start = new Date();
    1.43 +    let duration = threshold + interval + 1;
    1.44 +    while (true) {
    1.45 +      if (((new Date()) - start) > duration) {
    1.46 +        break;
    1.47 +      }
    1.48 +    }
    1.49 +  }
    1.50 +
    1.51 +  // Got a lag event. The test will time out if the actor
    1.52 +  // fails to detect the lag.
    1.53 +  function gotLagEvent(time) {
    1.54 +    do_print("lag: " + time);
    1.55 +    do_check_true(time >= threshold);
    1.56 +    front.stop().then(() => {
    1.57 +      finishClient(client);
    1.58 +    });
    1.59 +  }
    1.60 +
    1.61 +  do_test_pending();
    1.62 +}