diff --git a/tests/test.py b/tests/test.py
index 5475372..5d970c8 100755
--- a/tests/test.py
+++ b/tests/test.py
@@ -22,11 +22,6 @@ elif sys.argv[-2] == '-c':
 else:
     raise Exception('usage: test.py -c server_conf [client_conf]')
 
-if 'salsa20' in sys.argv[-1]:
-    from shadowsocks.crypto import salsa20_ctr
-    salsa20_ctr.test()
-    print('encryption test passed')
-
 p1 = Popen(['python', 'shadowsocks/server.py', '-c', server_config],
            stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True)
 p2 = Popen(['python', 'shadowsocks/local.py', '-c', client_config],
@@ -44,6 +39,8 @@ try:
 
         for fd in r:
             line = fd.readline()
+            if bytes != str:
+                line = str(line, 'utf8')
             sys.stdout.write(line)
             if line.find('starting local') >= 0:
                 local_ready = True
diff --git a/tests/test_latency.py b/tests/test_latency.py
deleted file mode 100644
index 5d44644..0000000
--- a/tests/test_latency.py
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/python
-
-import sys
-import time
-
-
-if __name__ == '__main__':
-    before = time.time()
-
-    for line in sys.stdin:
-        if 'HTTP/1.1 ' in line:
-            diff = time.time() - before
-            print 'headline %dms' % (diff * 1000)