Test packages with specific build tags

[littleskew]

Hello!

It seems to me that there is a problem with running test packages with specific build tags.

I have ginkgo specs in one of my packages and I'm trying to run tests in packages with specific build tags. When I'm doing it with go test -tags=my_tag ./... then only tests of underlying packages with the tag //go:build my_tag are run. But when I use ginkgo -v -tags=my_tag ./... or ginkgo build -tags=my_tag ./... then somewhy Ginkgo is trying to compile all packages with different build tags and fails with the error:

Failed to compile mypackage:
package /test/mypackage: build constraints exclude all Go files in /Users/testuser/go/src/test/mypackage
.... 

Ginkgo ran 12 suites in 3.456281959s (even though I have only one package with that tag)

There were failures detected in the following suites:
          mypackage ./test/mypackage [Compilation failure]

Is it expected and I am doing something wrong or is it an existing issue?

This also happens if running ginkgo without tags flag but on ./... packages and some of the underlying packages have build tags.

Thanks in advance!