diff --git a/export_test.go b/export_test.go
index 124c7f7..38ba5a3 100644
--- a/export_test.go
+++ b/export_test.go
@@ -3,6 +3,7 @@ package main
 import "testing"
 import . "github.com/smartystreets/goconvey/convey"
 
+// TestAdd test Add func
 func TestAdd(t *testing.T) {
 	Convey("test add", t, func() {
 		a := 3