1 files changed, 8 insertions, 8 deletions
diff --git a/modules/base/tool_test.go b/modules/base/tool_test.go
index f99edd5fbf..04cd682907 100644
--- a/modules/base/tool_test.go
+++ b/modules/base/tool_test.go
@@ -299,21 +299,21 @@ func TestFileSize(t *testing.T) {
 
 func TestSubtract(t *testing.T) {
 	toFloat64 := func(n interface{}) float64 {
-		switch n.(type) {
+		switch n := n.(type) {
 		case int:
-			return float64(n.(int))
+			return float64(n)
 		case int8:
-			return float64(n.(int8))
+			return float64(n)
 		case int16:
-			return float64(n.(int16))
+			return float64(n)
 		case int32:
-			return float64(n.(int32))
+			return float64(n)
 		case int64:
-			return float64(n.(int64))
+			return float64(n)
 		case float32:
-			return float64(n.(float32))
+			return float64(n)
 		case float64:
-			return n.(float64)
+			return n
 		default:
 			return 0.0
 		}