Updated fuzzer scripts

Point to new Chromium location
Also enable UBSan

Change-Id: I4ba182e3c6a967ad89090b776d05762fa9ae6e40

tests/test.cpp

@@ -1952,19 +1952,19 @@ void EndianSwapTest() {
 
 void UninitializedVectorTest() {
   flatbuffers::FlatBufferBuilder builder;
-  
+
   Test *buf = nullptr;
   auto vector_offset = builder.CreateUninitializedVectorOfStructs<Test>(2, &buf);
   TEST_NOTNULL(buf);
   buf[0] = Test(10, 20);
   buf[1] = Test(30, 40);
-  
+
   auto required_name = builder.CreateString("myMonster");
   auto monster_builder = MonsterBuilder(builder);
   monster_builder.add_name(required_name); // required field mandated for monster.
   monster_builder.add_test4(vector_offset);
   builder.Finish(monster_builder.Finish());
-  
+
   auto p = builder.GetBufferPointer();
   auto uvt = flatbuffers::GetRoot<Monster>(p);
   TEST_NOTNULL(uvt);
@@ -1978,6 +1978,18 @@ void UninitializedVectorTest() {
   TEST_EQ(test_1->b(), 40);
 }
 
+// For testing any binaries, e.g. from fuzzing.
+void LoadVerifyBinaryTest() {
+  std::string binary;
+  if (flatbuffers::LoadFile((test_data_path +
+                             "fuzzer/your-filename-here").c_str(),
+                            true, &binary)) {
+    flatbuffers::Verifier verifier(
+          reinterpret_cast<const uint8_t *>(binary.data()), binary.size());
+    TEST_EQ(VerifyMonsterBuffer(verifier), true);
+  }
+}
+
 int main(int /*argc*/, const char * /*argv*/ []) {
   // clang-format off
   #if defined(FLATBUFFERS_MEMORY_LEAK_TRACKING) && \
@@ -2021,6 +2033,7 @@ int main(int /*argc*/, const char * /*argv*/ []) {
     ReflectionTest(flatbuf.data(), flatbuf.size());
     ParseProtoTest();
     UnionVectorTest();
+    LoadVerifyBinaryTest();
   #endif
   // clang-format on