common/uuid: add test, albeit weak

common/uuid/uuid_test.go

@@ -0,0 +1,12 @@
+package uuid
+
+import (
+	"testing"
+)
+
+func TestTimeOrderedUuid(t *testing.T) {
+	uuid := TimeOrderedUUID()
+	if len(uuid) != 36 {
+		t.Fatalf("bad: %s", uuid)
+	}
+}