1557122 - Perma test_ext_storage_cleanup.html | Undefined value! - "tracker-0.3787650295256073" == "undefined" - | localStorage data was cleared - got true, expected false - when Gecko 69 merges to Beta on 2019-07-01

Status: RESOLVED DUPLICATE of bug 1556093

(WebExtensions :: General, defect)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

More background on this in bug 1556093.

Luca, can you take this or redirect, please?

+++ This bug was initially created as a clone of Bug #1556093 +++

[Tracking Requested - why for this release]:

central as beta simulation: https://treeherder.mozilla.org/#/jobs?repo=try&resultStatus=testfailed%2Cbusted%2Cexception&revision=073df4aa87c5ae9d2cf2432e0435e772e7baf7ff&searchStr=mochitest&selectedJob=249377829

failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=249377829&repo=try&lineNumber=5177
https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=249371341&repo=try&lineNumber=32991

looks to be a fallout from https://bugzilla.mozilla.org/show_bug.cgi?id=1555564

Comment 1

[(no longer active)]

Does this regression go away if https://hg.mozilla.org/mozilla-central/rev/9cd79017eae8 is backed out?

Comment 2

[(no longer active)]

(In reply to :Ehsan Akhgari from comment #1)

Does this regression go away if https://hg.mozilla.org/mozilla-central/rev/9cd79017eae8 is backed out?

I backed out all three parts of bug 1555564 locally and this regression still doesn't go away. So I don't think this has any relationship with bug 1556093 besides both hitting tests with "storage" in their names.

It would be nice if this failure was bisected separately from bug 1556093 to get to its cause.

Comment 3

[Luca Greco [:rpl] [:luca] [:lgreco]]

I've took a look at the failure logs, but unfortunately it doesn't seem to contain any useful clue about what is happening.

The test_ext_storage_cleanup.html tests are verifying that, when an extension is uninstalled, the data stored by the extension in the various storage APIs available to an extension page are all being cleared, and the linked failures logs seem to be both be happening in the test_uninstall_with_webapi_storages task, which is testing that the webAPI storages (localStorage and IndexedDB) are being cleared.

The failure suggests that the data stored in the localStorage web API have not been cleared after the test extension has been fully uninstalled, but the failure logs (at least at a first glance) are not providing any useful info about the underlying reason.

I tried to reproduce it locally but without any luck yet.

:aryx is this still happening in beta simulations even after the fix landed for Bug 1556093?

Comment 4

[Andreea Pavel [:apavel]]

Yesterday's beta simulations do not show this failure anymore:

Early Beta: https://treeherder.mozilla.org/#/jobs?repo=try&resultStatus=testfailed%2Cbusted%2Cexception%2Crunnable&revision=f00597d3e64bf7f77e3ef9cf9ab5b855d57f04a1

Late Beta: https://treeherder.mozilla.org/#/jobs?repo=try&resultStatus=testfailed%2Cbusted%2Cexception%2Crunnable&revision=17edf9b9f2ad23460de46972eabff496767d3682

We'll keep an eye on today's beta sims and update here.