From 709cf18aefb7b0c074da5360204f0da7eba587d2 Mon Sep 17 00:00:00 2001
From: Anton Kaliaev <anton.kalyaev@gmail.com>
Date: Fri, 15 Dec 2017 11:56:24 -0600
Subject: [PATCH] add gofuzz test for consensus wal

---
 consensus/wal_fuzz.go | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 consensus/wal_fuzz.go

diff --git a/consensus/wal_fuzz.go b/consensus/wal_fuzz.go
new file mode 100644
index 000000000..e15097c30
--- /dev/null
+++ b/consensus/wal_fuzz.go
@@ -0,0 +1,31 @@
+// +build gofuzz
+
+package consensus
+
+import (
+	"bytes"
+	"io"
+)
+
+func Fuzz(data []byte) int {
+	dec := NewWALDecoder(bytes.NewReader(data))
+	for {
+		msg, err := dec.Decode()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			if msg != nil {
+				panic("msg != nil on error")
+			}
+			return 0
+		}
+		var w bytes.Buffer
+		enc := NewWALEncoder(&w)
+		err = enc.Encode(msg)
+		if err != nil {
+			panic(err)
+		}
+	}
+	return 1
+}