Unit tests for play kube

[haircommander]

/kind feature
??

We have broken play kube numerous times because we don't really test it.

considering it's a feature that is advertised and promoted, we should probably have tests to stop it from breaking

[haircommander]

@rhatdan I can't give this love right now, but it also seems like an accessible task for interns.

please close if I missed a discussion about how this isn't viable.

[mheon]

Ideal test flow is probably a test that makes a pod, does a podman generate kube of that pod, removes said pod, and imports again with play kube, verifying that the appropriate number of containers are created, names are preserved, etc.

[mheon]

I got this one - #3293

[vrothberg]

I am currently having a hard time running YAML files I find on the web, so I was looking for issues.

#3293 was adding unit tests but those are using podman to generate the YAML files. This is a bit problematic as podman is testing itself and we don't have a predefined behaviour we can test against.

I'd love to have a set of YAML files that we test against in addition to the generate-play cycle tests.