61 lines
1.6 KiB
JavaScript
61 lines
1.6 KiB
JavaScript
const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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function shouldHaveChanged(a, b)
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{
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if (a.length != b.length) {
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throw Error("TEST-UNEXPECTED-FAIL: telemetry count array size changed");
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}
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for (let i = 0; i < a.length; ++i) {
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if (a[i] == b[i]) {
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continue;
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}
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return; // something was different, that's all that matters
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}
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throw Error("TEST-UNEXPECTED-FAIL: telemetry data didn't change");
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}
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function TestStartupCacheTelemetry() { }
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TestStartupCacheTelemetry.prototype = {
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classID: Components.ID("{73cbeffd-d6c7-42f0-aaf3-f176430dcfc8}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
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saveInitial: function() {
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let t = Services.telemetry;
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this._age = t.getHistogramById("STARTUP_CACHE_AGE_HOURS").snapshot.counts;
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this._invalid = t.getHistogramById("STARTUP_CACHE_INVALID").snapshot.counts;
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},
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checkFinal: function() {
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let t = Services.telemetry;
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let newAge = t.getHistogramById("STARTUP_CACHE_AGE_HOURS").snapshot.counts;
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shouldHaveChanged(this._age, newAge);
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let newInvalid = t.getHistogramById("STARTUP_CACHE_INVALID").snapshot.counts;
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shouldHaveChanged(this._invalid, newInvalid);
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},
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observe: function(subject, topic, data) {
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switch (topic) {
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case "save-initial":
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this.saveInitial();
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break;
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case "check-final":
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this.checkFinal();
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break;
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default:
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throw Error("BADDOG, NO MILKBONE FOR YOU");
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}
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},
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};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([TestStartupCacheTelemetry]);
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