diff --git a/shadowsocks/encrypt.py b/shadowsocks/encrypt.py
index e08c0a2..d5b1535 100644
--- a/shadowsocks/encrypt.py
+++ b/shadowsocks/encrypt.py
@@ -179,6 +179,7 @@ def test_encryptor():
     from os import urandom
     plain = urandom(10240)
     for method in CIPHERS_TO_TEST:
+        logging.warn(method)
         encryptor = Encryptor(b'key', method)
         cipher = encryptor.encrypt(plain)
         decryptor = Encryptor(b'key', method)
@@ -190,6 +191,7 @@ def test_encrypt_all():
     from os import urandom
     plain = urandom(10240)
     for method in CIPHERS_TO_TEST:
+        logging.warn(method)
         cipher = encrypt_all(b'key', method, 1, plain)
         plain2 = encrypt_all(b'key', method, 0, cipher)
         assert plain == plain2