Intial smoke tests

[lukehinds]

Basic smoke tests to perform health checks against grpc / HTTP endpoints and ensure basic auth controls are in place.

Happy to expand on these, but I am noticing some overlap with other tests. Please say in review if you want anything else.

The expectation is these might run in CI and be pointed towards staging.

HTTP_HOST=https://app.staging.stacklok.dev go test internal/smoke/smoke_test.go

[lukehinds]

of course, I need to gate these from happening in regular go test:

📦 github.com/stacklok/mediator/internal/smoke
❌ TestAuthUserService (0s)
❌ TestGRPCHealthCheck (0s)
❌ TestGetAuthorizationURL (0s)
❌ TestHTTPHealthCheck (0s)
❌ TestRevokeProviderToken (0s)
❌ TestStoreProviderToken (0s)

[evankanderson]

You'll want to add a build tag for this

[jhrozek]

This seems to work:

GRPC_HOST=127.0.0.1:8090 HTTP_HOST=http://127.0.0.1:8080 go test -tags=smoke ./...

we get:

ok      github.com/stacklok/mediator/internal/smoke     0.155s

Question: Do we want to add a Makefile target?

[evankanderson]

Question: Do we want to add a Makefile target?

I think this can be a future task -- this gives us at least a bit of a framework to work with.

We might be able to leverage GITHUB_TOKEN from the GitHub API to enable login to mediator in staging, or we could store a secret with an auth token to mediator...