[libFuzzer] add two tests for experimenting with equivalence fuzzing

llvm-svn: 292509

1 files changed, 15 insertions, 0 deletions

diff --git a/llvm/lib/Fuzzer/test/EquivalenceATest.cpp b/llvm/lib/Fuzzer/test/EquivalenceATest.cpp
new file mode 100644
index 00000000000..101fe127f5d
--- /dev/null
+++ b/llvm/lib/Fuzzer/test/EquivalenceATest.cpp
@@ -0,0 +1,15 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+#include <stddef.h>
+#include <stdint.h>
+
+// Test for libFuzzer's "equivalence" fuzzing, part A.
+extern "C" void LLVMFuzzerAnnounceOutput(const uint8_t *Data, size_t Size);
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (Size > 100) return 0;
+  uint8_t Result[100];
+  for (size_t i = 0; i < Size; i++)
+    Result[Size - i - 1] = Data[i];
+  LLVMFuzzerAnnounceOutput(Result, Size);
+  return 0;
+}