test(integration): cloud_upload

[greyscaled]

As a follow-up to #2670:

we could probably write tests for this using mino or the mock gcs fixture

Originally posted by @tychoish in #2670 (comment)

[greyscaled]

I think mock gcs fixture would be best - but this code relies on a cloud instance. Do we have prior art for running such tests without reaching out to a test instance of glaredb cloud?

Intuitively, I'd think we can start a glaredb connected to the gcs fixture and then use a client to connect to it via pg or rpc.

If such a test or pieces of it exist, I'd be very thankful to be pointed to the code(s).

[tychoish]

I think it doesn't require cloud, as much as a glaredb invocation that has credentials for the service account that can access the buckets where native storage is, and one user, but I might be missing something

[greyscaled]

Yes I didn't mean to imply cloud is absolutely required the confusing phrase cloud instance arises from the name of the function on session vars.

Oops.

But ya I would think we need to run the binary with the right things configured and I'm unsure if we have any existing tests doing that so it may end up being a novel setup.

Will have bandwidth to look into this more in the coming sprints