clean up, add test

weed/util/cipher_test.go

@@ -0,0 +1,17 @@
+package util
+
+import (
+	"encoding/base64"
+	"testing"
+)
+
+func TestSameAsJavaImplementation(t *testing.T) {
+	str := "QVVhmqg112NMT7F+G/7QPynqSln3xPIhKdFGmTVKZD6IS0noyr2Z5kXFF6fPjZ/7Hq8kRhlmLeeqZUccxyaZHezOdgkjS6d4NTdHf5IjXzk7"
+	cipherText, _ := base64.StdEncoding.DecodeString(str)
+	secretKey := []byte("256-bit key for AES 256 GCM encr")
+	plantext, err := Decrypt(cipherText, CipherKey(secretKey))
+	if err != nil {
+		println(err.Error())
+	}
+	println(string(plantext))
+}