depends on a module that has a test. This test imports generated code (.gen) that's not checked in. go mod tidy fails with leading dot in path element
$ go mod tidy
go: finding github.com/xytan0056/depwithoutgen latest
github.com/xytan0056/gomodnogen imports
github.com/xytan0056/depwithoutgen/api tested by
github.com/xytan0056/depwithoutgen/api.test imports
github.com/xytan0056/depwithoutgen/.gen/client: malformed module path "github.com/xytan0056/depwithoutgen/.gen/client": leading dot in path element