Unable to Recursively Apply Generating to All Files in a Directory

[hotsukai]

Hi,
I'm trying to recursively apply generating to all files under a specific directory.
For instance, I want to generate all files under the pkg directory.
I have attempted the following commands, but none of them seem to be working properly.

gotests -w -all  pkg/...
gotests -w -all  pkg/*
gotests -w -all  pkg/**/*
gotests -w -all  pkg/
gotests -w -all  pkg

env

go version go1.20.6 darwin/arm64