Adds more tests

[roshkhatri]

This PR forks all the redis tests that were running on the docker-library/official-images.

I have added these as the external tests while we're using the bashbrew scripts to build, run, test and push it.

[roshkhatri]

@yosifkit @tianon would you please take a look at this PR?

[roshkhatri]

@inetol @jrwren would you be interested in reviewing this PR?

[jrwren]

LGTM

If I were nit picking I'd say add the missing trailing newlines and use [[ over [ consistently.

[inetol]

Being a fork that removed everything except the specific tests for Valkey there are some files that could be deleted like config.sh, even more important is a deprecated Docker flag as --link that limits my ability to run the tests under Podman as well as some ShellCheck errors that would be convenient to fix.

I have opened a PR to address these issues against this branch here.

[tianon]

I'm not sure why you're copying all the tests, especially without changes; the bashbrew GitHub action will run the tests in config.sh in addition to the upstream DOI tests (which you can also reference in your config).

You can also explicitly set GITHUB_REPOSITORY to control the image name (https://github.com/tianon/docker-qemu/blob/72cd4ebd938b1628a5e6d0abbd2ceac1590aef88/.github/workflows/ci.yml#L34).

You might also want to switch from @HEAD to the latest tagged release of bashbrew so you're not alpha testing our changes like we prefer to. 😄

[roshkhatri]

The reason I am doing this is, in future we might be moving away and we might want to modify the tests and add new ones.
I thought that it would have been better to keep the tests and the code in the same repo for maintainability.

WDYT @tianon, does it makes sense?