Right now golist does not permit querying the imports of a project and its tests in a single pass. You can emulate most of it with two separate commands:

$ golist --imported --skip-self --package-path %{goipath} 
$ golist --imported --skip-self --tests --package-path %{goipath}

https://pagure.io/go-rpm-macros/blob/master/f/rpm/macros.d/macros.go-rpm#_216

However the second line can request things the first line decided to filter out, because they are provided by the project itself. And that will probably break some builds once
https://github.com/rpm-software-management/rpm/pull/593 or
https://pagure.io/fesco/issue/2004 are done.

For dynamic BuildRequires to work reliably, we really need a single codebase+tests call (we can still use the codebase-only line when a packager disables tests in its specs).

$ golist --imported --skip-self --with-tests --package-path %{goipath}