Update TODO.txt

extratype · extratype · commit 96036e03c9d4 · 2021-12-19T23:44:19.000+09:00
diff --git a/docs/TODO.txt b/docs/TODO.txt
@@ -1,3 +1,7 @@
+refactor error-prone functions
+
+mock tests for invariants, requirements, specs
+
 profile performance (kernel time, user time) for SSD 4K I/O
     locks
     data structure
