(consumertest) Allow access to request context in sinks

[Erog38]

Component(s)

consumer/consumertest

Describe the issue you're reporting

1. consumer/consumertest isn't listed in the dropdown for selecting a component, or I somehow missed it, so I apologize, but I selected the closest relative I could find.

Overview

consumertest.XSink objects discard the request context on consumption. This makes testing anything related to transforming the request context difficult / unnecessary duplication. It would be hugely helpful to allow for access to the request context after the test is ran in order to validate transformations occurred.

This would help development of #33288 and #33288.

[github-actions]

Pinging code owners:

• consumer/xconsumer: @mx-psi @dmathieu

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[Erog38]

/label good-first-issue

[mx-psi]

I support doing this

[vignesh-codes]

@mx-psi Hey there, Ive started working on this issue. Just wanted to confirm if I can proceed and if you could assign it to me.