dom/performance/tests/test_performance_server_timing_plain_http.html

   1 <!--
   2   Any copyright is dedicated to the Public Domain.
   3   http://creativecommons.org/publicdomain/zero/1.0/
   4 -->
   5 <!DOCTYPE html>
   6 <html>
   7 <head>
   8 <meta charset=utf-8>
   9 <title>Plain HTTP Test for PerformanceServerTiming</title>
  10 <script src="/resources/testharness.js"></script>
  11 <script src="/resources/testharnessreport.js"></script>
  12 </head>
  13 <body>
  14 <div id="log"></div>
  15 <script>
  16 function makeXHR(aUrl) {
  17   var xmlhttp = new XMLHttpRequest();
  18   xmlhttp.open("get", aUrl, true);
  19   xmlhttp.send();
  20 }
  21
  22 promise_test(t => {
  23   var promise = new Promise(resolve => {
  24     performance.clearResourceTimings();
  25
  26     var observer = new PerformanceObserver(list => resolve(list));
  27     observer.observe({entryTypes: ['resource']});
  28     t.add_cleanup(() => observer.disconnect());
  29   });
  30
  31   makeXHR("serverTiming.sjs");
  32
  33   return promise.then(list => {
  34     assert_equals(list.getEntries().length, 1);
  35     assert_equals(list.getEntries()[0].serverTiming, undefined);
  36     assert_equals(list.getEntries()[0].toJSON().serverTiming, undefined,
  37                   "toJSON should not pick up properties that aren't on the object");
  38   });
  39 }, "server-timing test");
  40
  41 </script>
  42 </body>