1576115 - xpcshell debugging is broken when setting devtools.browsertoolbox.fission to true

Status: RESOLVED FIXED

(DevTools :: Framework, defect, P1)

Description

[Alexandre Poirot [:ochameau]]

On the client side, we get this error:

console.error: "Protocol error (noProcesses): This root actor has no processes."

Which comes from the server side:
https://searchfox.org/mozilla-central/source/devtools/server/actors/root.js#547-554

Comment 1

[Alexandre Poirot [:ochameau]]

Here is an updated, fixed revision URL:
https://searchfox.org/mozilla-central/rev/d061ba55ac76f41129618d638f4ef674303ec103/devtools/server/actors/root.js#529-533

The STR looks like this:

• ./mach xpcshell-test devtools/server/tests/unit/test_client_request.js --jsdebugger
• open another firefox
• open about:debugging
• connect to localhost:6000
• scroll down and inspect the "Main process"

ER: you can debug the xpcshell test

AR: the toolbox opened from about:debugging is empty and you see comment 0 exception in stdout.

Comment 2

[Alexandre Poirot [:ochameau]]

You may find an even nicier STR in bug 1594507 comment 0 :)

Comment 3

[Alexandre Poirot [:ochameau]]

Attachment: Bug 1576115 - Expose processes from xpcshell test DebuggerServer.

With Fission, we expect RootActor.listProcesses to return a list of all process actors.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/eec2b47cdc07
Expose processes from xpcshell test DebuggerServer. r=jdescottes

Comment 5

[Oana Pop-Rus]

https://hg.mozilla.org/mozilla-central/rev/eec2b47cdc07

Comment 6

[Chris Peterson [:cpeterson]]

Retroactively moving fixed bugs whose summaries mention "Fission" (or other Fission-related keywords) but are not assigned to a Fission Milestone to an appropriate Fission Milestone.

This will generate a lot of bugmail, so you can filter your bugmail for the following UUID and delete them en masse:

0ee3c76a-bc79-4eb2-8d12-05dc0b68e732