diff --git a/include/ss/parser.hpp b/include/ss/parser.hpp
index b47c433..02295ec 100644
--- a/include/ss/parser.hpp
+++ b/include/ss/parser.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+// TODO add single header tests
 #include "common.hpp"
 #include "converter.hpp"
 #include "exception.hpp"
diff --git a/test/test_parser.cpp b/test/test_parser.cpp
index f0b0992..fd3098f 100644
--- a/test/test_parser.cpp
+++ b/test/test_parser.cpp
@@ -8,6 +8,7 @@
 #include <unordered_map>
 #include <unordered_set>
 
+// TODO add single header tests
 std::string time_now_rand() {
     std::stringstream ss;
     auto t = std::time(nullptr);
@@ -1652,6 +1653,7 @@ void test_combinations_impl() {
 }
 
 TEST_CASE("parser test various cases version 2") {
+    // TODO handle crlf
     using quote = ss::quote<'"'>;
     using escape = ss::escape<'\\'>;
     using trim = ss::trim<' '>;