knothash stuff

lib/src/Startup.cpp

@@ -13,6 +13,10 @@
 namespace aocpp {
 
 auto Startup(int argc, char ** argv) -> std::unique_ptr<std::istream, ConditionalDeleter> {
+  if (std::getenv("DOCTEST")) {
+    exit(doctest::Context{argc, argv}.run());
+  }
+
   bool should_delete;
   std::istream* result_ptr;