gecko/browser/devtools/profiler/test/browser_profiler_data-massaging-01.js
2014-08-06 11:25:18 -04:00

64 lines
2.4 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Tests if the retrieved profiler data samples are correctly filtered and
* normalized before passed to consumers.
*/
const WAIT_TIME = 1000; // ms
let test = Task.async(function*() {
let [target, debuggee, panel] = yield initFrontend(SIMPLE_URL);
let front = panel.panelWin.gFront;
// Perform the first recording...
yield front.startRecording();
let profilingStartTime = front._profilingStartTime;
info("Started profiling at: " + profilingStartTime);
busyWait(WAIT_TIME); // allow the profiler module to sample some cpu activity
let firstRecordingData = yield front.stopRecording();
let firstRecordingFinishTime = firstRecordingData.profilerData.currentTime;
is(profilingStartTime, 0,
"The profiling start time should be 0 for the first recording.");
ok(firstRecordingData.recordingDuration >= WAIT_TIME,
"The first recording duration is correct.");
ok(firstRecordingFinishTime >= WAIT_TIME,
"The first recording finish time is correct.");
// Perform the second recording...
yield front.startRecording();
let profilingStartTime = front._profilingStartTime;
info("Started profiling at: " + profilingStartTime);
busyWait(WAIT_TIME); // allow the profiler module to sample more cpu activity
let secondRecordingData = yield front.stopRecording();
let secondRecordingFinishTime = secondRecordingData.profilerData.currentTime;
let secondRecordingProfile = secondRecordingData.profilerData.profile;
let secondRecordingSamples = secondRecordingProfile.threads[0].samples;
isnot(profilingStartTime, 0,
"The profiling start time should not be 0 on the second recording.");
ok(secondRecordingData.recordingDuration >= WAIT_TIME,
"The second recording duration is correct.");
ok(secondRecordingFinishTime - firstRecordingFinishTime >= WAIT_TIME,
"The second recording finish time is correct.");
ok(secondRecordingSamples[0].time < profilingStartTime,
"The second recorded sample times were normalized.");
ok(secondRecordingSamples[0].time > 0,
"The second recorded sample times were normalized correctly.");
ok(!secondRecordingSamples.find(e => e.time + profilingStartTime <= firstRecordingFinishTime),
"There should be no samples from the first recording in the second one, " +
"even though the total number of frames did not overflow.");
yield teardown(panel);
finish();
});