From b246489074aa20dff7e5bbb99050ba437eec988d Mon Sep 17 00:00:00 2001
From: Frank Tang <ftang@chromium.org>
Date: Mon, 4 Dec 2023 16:46:13 -0800
Subject: [PATCH] ICU-22588 Limit test data to avoid meaningless timeout

---
 icu4c/source/test/fuzzer/collator_rulebased_fuzzer.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/icu4c/source/test/fuzzer/collator_rulebased_fuzzer.cpp b/icu4c/source/test/fuzzer/collator_rulebased_fuzzer.cpp
index 98785000acb..85e9434517c 100644
--- a/icu4c/source/test/fuzzer/collator_rulebased_fuzzer.cpp
+++ b/icu4c/source/test/fuzzer/collator_rulebased_fuzzer.cpp
@@ -13,6 +13,11 @@ IcuEnvironment* env = new IcuEnvironment();
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   UErrorCode status = U_ZERO_ERROR;
+  if (size > 2000) {
+      // Limit the effective test data to only 2000 bytes to avoid meaningless
+      // timeout.
+      size = 2000;
+  }
 
   size_t unistr_size = size/2;
   std::unique_ptr<char16_t[]> fuzzbuff(new char16_t[unistr_size]);