Support -skip of multiple tests

[lidel]

(Not sure if I was doing something wrong or maybeit is just a part of our story that needs more polishing, filling issue to discuss)

i was trying to run tests on CI (ipfs-inactive/bifrost-gateway#190) with

args: -skip 'TestGatewayCache/GET_for_/ipfs/_with_only-if-cached_succeeds_when_in_local_datastore' -skip 'TestGatewayCache/HEAD_for_/ipfs/_with_only-if-cached_succeeds_when_in_local_datastore'

When run, only one of them was excluded.

I worked around it with regex (since bothe differ in HEAD/GET):

args: -skip 'TestGatewayCache/.*_for_/ipfs/_with_only-if-cached_succeeds_when_in_local_datastore'

but we should make it possible for people running test suite to exclude more than one pattern, as they may want to exclude multiple unrelated ones.

[lidel]

@laurentsenta thoughts?

If this is supported and i am just holding it wrong, maybe we just need to update README and add better example there :)

[laurentsenta]

@lidel apologies for the slow response, it is not supported: that -skip is the regular go flag.
Skipping group of packages is not supported yet: golang/go#41583 (comment)

Your use case makes a lot of sense and I don't think we should wait for Golang to implement this feature (it probably makes less sense for the "average" use case of go tests). I'll look into implementing this feature.

[laurentsenta]

@lidel following #148 (comment) could you try using

go test ... -skip 'TestGatewayCache/(GET|HEAD)_for_/ipfs/_with_only-if-cached_succeeds_when_in_local_datastore'

?

Notes from trying out the skip syntax: https://gist.github.com/laurentsenta/5ed9fe9954605eefc1ed9ee2db7f66a9