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