Add general fuzzer. (#159)

src/ftxui/component/terminal_input_parser_test_fuzzer.cpp

@@ -0,0 +1,23 @@
+//#include "ftxui/component/event.hpp"
+//#include "ftxui/component/receiver.hpp"
+#include <vector>
+#include "ftxui/component/terminal_input_parser.hpp"
+
+extern "C" int LLVMFuzzerTestOneInput(const char* data, size_t size) {
+  using namespace ftxui;
+  auto event_receiver = MakeReceiver<Event>();
+  {
+    auto parser = TerminalInputParser(event_receiver->MakeSender());
+    for (size_t i = 0; i < size; ++i)
+      parser.Add(data[i]);
+  }
+
+  Event received;
+  while (event_receiver->Receive(&received))
+    ;
+  return 0;  // Non-zero return values are reserved for future use.
+}
+
+// Copyright 2021 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.