1717899 - Extend the lifetime of the Remote Agent to the Firefox session

Status: RESOLVED FIXED

(Remote Protocol :: Agent, task, P2)

Description

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Compared to Marionette the Remote Agent can be started and stopped multiple times throughout the lifetime of the Firefox session. This was most likely implemented because of allowing to test several connection scenarios by browser chrome tests, which are not able to actually restart Firefox.

When implementing WebDriver BiDi it would be good to let the Remote Agent behave the same as Marionette. Given that each and every test could be done via WdSpec we won't have the limitation for browser-chrome tests anymore. Tests for CDP could be done the same way by using the Mozilla specific WdSpec tests.

The only requirement that's needed is the session.new command (bug 1713784).

One reason to get this done is that we currently do not have control over when the HTTP server is shutdown, and especially when the recommended preferences are getting reset. This opens a race as it can be seen on bug 1717145, because at the time of resetting the preferences the prefs module is no longer accessible.

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Setting as P3 as well given that it is blocked on the P3 bug 1722090.

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Attachment: Bug 1717899 - [remote] Extend the lifetime of the Remote Agent to the Firefox session.

Depends on D144337

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/4d34ea7ba155
[remote] Extend the lifetime of the Remote Agent to the Firefox session. r=webdriver-reviewers,jdescottes

Comment 4

[Marian-Vasile Laza]

https://hg.mozilla.org/mozilla-central/rev/4d34ea7ba155

Comment 5

[Henrik Skupin [:whimboo][⌚️UTC+1]]

This actually blocks a M3 milestone feature and as such has to be considered to be in the milestone as well.