From 1532259fcae8712777e1cedefc91224ee60a6aaa Mon Sep 17 00:00:00 2001
From: practicalswift <practicalswift@users.noreply.github.com>
Date: Wed, 22 Apr 2020 13:57:28 +0000
Subject: [PATCH] tests: Add fuzzing coverage for FormatHDKeypath(...) and
 WriteHDKeypath(...)

---
 src/test/fuzz/parse_hd_keypath.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/test/fuzz/parse_hd_keypath.cpp b/src/test/fuzz/parse_hd_keypath.cpp
index 9a23f4b2d43..f668ca8c48b 100644
--- a/src/test/fuzz/parse_hd_keypath.cpp
+++ b/src/test/fuzz/parse_hd_keypath.cpp
@@ -2,12 +2,22 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include <test/fuzz/FuzzedDataProvider.h>
 #include <test/fuzz/fuzz.h>
+#include <test/fuzz/util.h>
 #include <util/bip32.h>
 
+#include <cstdint>
+#include <vector>
+
 void test_one_input(const std::vector<uint8_t>& buffer)
 {
     const std::string keypath_str(buffer.begin(), buffer.end());
     std::vector<uint32_t> keypath;
     (void)ParseHDKeypath(keypath_str, keypath);
+
+    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
+    const std::vector<uint32_t> random_keypath = ConsumeRandomLengthIntegralVector<uint32_t>(fuzzed_data_provider);
+    (void)FormatHDKeypath(random_keypath);
+    (void)WriteHDKeypath(random_keypath);
 }