Refactor random functions

utils/merge/merge_fs_test.go

@@ -5,12 +5,18 @@ import (
 	"io/fs"
 	"os"
 	"path/filepath"
+	"testing"
 
 	"github.com/navidrome/navidrome/utils/merge"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 )
 
+func TestMergeFS(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "MergeFS Suite")
+}
+
 var _ = Describe("FS", func() {
 	var baseName, overlayName string
 	var mergedDir fs.FS