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Bug 1268921 - Allow non-integer values to be specified for e10srollout cohort samples. r=mconley

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MozReview-Commit-ID: 9pCaqWeapBl
This commit is contained in:
Felipe Gomes 2016-04-29 20:47:18 -03:00
parent c675959a63
commit c5ab44cfcb
1 changed files with 17 additions and 9 deletions
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26
browser/extensions/e10srollout/bootstrap.js vendored
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@ -9,10 +9,9 @@ Cu.import("resource://gre/modules/Preferences.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/UpdateUtils.jsm");
// The amount of people to be part of e10s, in %
// The amount of people to be part of e10s
const TEST_THRESHOLD = {
"beta" : 50,
"release" : 0,
"beta" : 0.5, // 50%
};
const PREF_COHORT_SAMPLE = "e10s.rollout.cohortSample";
@ -79,14 +78,23 @@ function uninstall() {
}
function getUserSample() {
let existingVal = Preferences.get(PREF_COHORT_SAMPLE, undefined);
if (typeof(existingVal) == "number") {
return existingVal;
let prefValue = Preferences.get(PREF_COHORT_SAMPLE, undefined);
let value = 0.0;
if (typeof(prefValue) == "string") {
value = parseFloat(prefValue, 10);
return value;
}
let val = Math.floor(Math.random() * 100);
Preferences.set(PREF_COHORT_SAMPLE, val);
return val;
if (typeof(prefValue) == "number") {
// convert old integer value
value = prefValue / 100;
} else {
value = Math.random();
}
Preferences.set(PREF_COHORT_SAMPLE, value.toString().substr(0, 8));
return value;
}
function setCohort(cohortName) {