diff --git a/test/str_test.go b/test/str_test.go
deleted file mode 100644
index 02a7d67..0000000
--- a/test/str_test.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package test
-
-import (
-	"fmt"
-	"git.sre.ink/go/gtool"
-	"testing"
-)
-
-func TestStr(tt *testing.T) {
-	fmt.Println(gtool.Str.HexEncode("hello world!"))
-	//68656c6c6f20776f726c6421
-	fmt.Println(gtool.Str.HexDecode("68656c6c6f20776f726c6421"))
-	//hello world! <nil>
-}