Define sanitizer callbacks that fail tests when triggered.

ChaosTests/CMakeLists.txt

@@ -11,7 +11,8 @@ FetchContent_Declare(
 set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
 FetchContent_MakeAvailable(googletest)
 
-set(ChaosTests_SOURCE Hash/Md4HasherTests.cpp
+set(ChaosTests_SOURCE SanCallbacks.cpp
+                      Hash/Md4HasherTests.cpp
                       Hash/Md5HasherTests.cpp
                       Hash/Sha1HasherTests.cpp
                       Mac/HmacTests.cpp

ChaosTests/SanCallbacks.cpp

@@ -0,0 +1,21 @@
+#include <gtest/gtest.h>
+
+extern "C"
+{
+
+void __ubsan_on_report()
+{
+    FAIL() << "Encountered an undefined behavior sanitizer error";
+}
+
+void __asan_on_error()
+{
+    FAIL() << "Encountered an address sanitizer error";
+}
+
+void __tsan_on_report()
+{
+    FAIL() << "Encountered a thread sanitizer error";
+}
+
+} // extern "C"