diff --git a/src/runtime/mod.rs b/src/runtime/mod.rs
index 8dc24e0df55132b0837ee6875636092ed507b449..5c605e16603e8a90263735197d5beb1a6263d255 100644
--- a/src/runtime/mod.rs
+++ b/src/runtime/mod.rs
@@ -3,7 +3,7 @@ pub mod error;
 mod setup2;
 
 #[cfg(test)]
-mod my_tests;
+mod tests;
 
 use crate::common::*;
 use error::*;
@@ -352,6 +352,14 @@ impl StringLogger {
         Self(controller_id, String::default())
     }
 }
+impl Drop for StringLogger {
+    fn drop(&mut self) {
+        let stdout = std::io::stdout();
+        let mut lock = stdout.lock();
+        writeln!(lock, "--- DROP LOG DUMP ---").unwrap();
+        self.dump_log(&mut lock);
+    }
+}
 impl Logger for StringLogger {
     fn line_writer(&mut self) -> &mut dyn std::fmt::Write {
         use std::fmt::Write;