From faafda232e1d4f79ee64dbfee699a8018f25b0bc Mon Sep 17 00:00:00 2001
From: MarcoFalke <falke.marco@gmail.com>
Date: Wed, 14 Jul 2021 12:35:14 +0200
Subject: [PATCH] fuzz: Speed up prevector fuzz target

---
 src/test/fuzz/prevector.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/test/fuzz/prevector.cpp b/src/test/fuzz/prevector.cpp
index 51956bbe9e..447f32ed16 100644
--- a/src/test/fuzz/prevector.cpp
+++ b/src/test/fuzz/prevector.cpp
@@ -206,10 +206,14 @@ public:
 
 FUZZ_TARGET(prevector)
 {
+    // Pick an arbitrary upper bound to limit the runtime and avoid timeouts on
+    // inputs.
+    int limit_max_ops{3000};
+
     FuzzedDataProvider prov(buffer.data(), buffer.size());
     prevector_tester<8, int> test;
 
-    while (prov.remaining_bytes()) {
+    while (--limit_max_ops >= 0 && prov.remaining_bytes()) {
         switch (prov.ConsumeIntegralInRange<int>(0, 13 + 3 * (test.size() > 0))) {
         case 0:
             test.insert(prov.ConsumeIntegralInRange<size_t>(0, test.size()), prov.ConsumeIntegral<int>());