diff --git a/test/rustint/core_test.clj b/test/rustint/core_test.clj
index 6264459..d042654 100644
--- a/test/rustint/core_test.clj
+++ b/test/rustint/core_test.clj
@@ -979,3 +979,14 @@
     ))
   )
 )
+
+(deftest test-agregar-ptocoma-04
+  (testing "Test main 04 agregar-ptocoma"
+    (is (=
+      (agregar-ptocoma
+        (list 'fn 'main() (symbol "{") 'let 'v (symbol ":") 'i64 (symbol ";") 'let 'mut 'w (symbol ":") 'i64 (symbol ";") 'if 'y '>= '0 (symbol "{") 'v '= 'y (symbol ";") 'w '= 'y (symbol ";") (symbol "}") 'else (symbol "{") 'v '= '- 'y (symbol ";") 'w '= '- 'y (symbol ";") (symbol "}") 'while 'w '<= 'r (symbol "{") 'w '= '2 (symbol ";") (symbol "}") 'while 'w '> 'v (symbol "{") 'q '*= '2 (symbol ";") 'w (symbol "/=") '2 (symbol ";") 'if 'w '<= 'r (symbol "{") 'r '-= 'w (symbol ";") 'q '+= '1 (symbol ";") (symbol "}") (symbol "}") (symbol "}"))
+      )
+      (list 'fn 'main() (symbol "{") 'let 'v (symbol ":") 'i64 (symbol ";") 'let 'mut 'w (symbol ":") 'i64 (symbol ";") 'if 'y '>= '0 (symbol "{") 'v '= 'y (symbol ";") 'w '= 'y (symbol ";") (symbol "}") 'else (symbol "{") 'v '= '- 'y (symbol ";") 'w '= '- 'y (symbol ";") (symbol "}") (symbol ";") 'while 'w '<= 'r (symbol "{") 'w '= '2 (symbol ";") (symbol "}") (symbol ";") 'while 'w '> 'v (symbol "{") 'q (symbol "*=") '2 (symbol ";") 'w (symbol "/=") '2 (symbol ";") 'if 'w '<= 'r (symbol "{") 'r (symbol "-=") 'w (symbol ";") 'q (symbol "+=") '1 (symbol ";") (symbol "}") (symbol "}") (symbol "}"))
+    ))
+  )
+)