diff --git a/lib/py/test/test_sslsocket.py b/lib/py/test/test_sslsocket.py
index fe03961..98d47ae 100644
--- a/lib/py/test/test_sslsocket.py
+++ b/lib/py/test/test_sslsocket.py
@@ -35,8 +35,11 @@
 SERVER_PEM = os.path.join(ROOT_DIR, 'test', 'keys', 'server.pem')
 SERVER_CERT = os.path.join(ROOT_DIR, 'test', 'keys', 'server.crt')
 SERVER_KEY = os.path.join(ROOT_DIR, 'test', 'keys', 'server.key')
-CLIENT_CERT = os.path.join(ROOT_DIR, 'test', 'keys', 'client.crt')
-CLIENT_KEY = os.path.join(ROOT_DIR, 'test', 'keys', 'client.key')
+CLIENT_CERT_NO_IP = os.path.join(ROOT_DIR, 'test', 'keys', 'client.crt')
+CLIENT_KEY_NO_IP = os.path.join(ROOT_DIR, 'test', 'keys', 'client.key')
+CLIENT_CERT = os.path.join(ROOT_DIR, 'test', 'keys', 'client_v3.crt')
+CLIENT_KEY = os.path.join(ROOT_DIR, 'test', 'keys', 'client_v3.key')
+CLIENT_CA = os.path.join(ROOT_DIR, 'test', 'keys', 'CA.pem')
 
 TEST_PORT = 23458
 TEST_ADDR = '/tmp/.thrift.domain.sock.%d' % TEST_PORT
@@ -188,6 +191,24 @@
         server = TSSLServerSocket(
             port=TEST_PORT, cert_reqs=ssl.CERT_REQUIRED, keyfile=SERVER_KEY,
             certfile=SERVER_CERT, ca_certs=CLIENT_CERT)
+        client = TSSLSocket('localhost', TEST_PORT, cert_reqs=ssl.CERT_NONE, certfile=SERVER_CERT, keyfile=SERVER_KEY)
+        self._assert_connection_failure(server, client)
+
+        server = TSSLServerSocket(
+            port=TEST_PORT, cert_reqs=ssl.CERT_REQUIRED, keyfile=SERVER_KEY,
+            certfile=SERVER_CERT, ca_certs=CLIENT_CA)
+        client = TSSLSocket('localhost', TEST_PORT, cert_reqs=ssl.CERT_NONE, certfile=CLIENT_CERT_NO_IP, keyfile=CLIENT_KEY_NO_IP)
+        self._assert_connection_failure(server, client)
+
+        server = TSSLServerSocket(
+            port=TEST_PORT, cert_reqs=ssl.CERT_REQUIRED, keyfile=SERVER_KEY,
+            certfile=SERVER_CERT, ca_certs=CLIENT_CA)
+        client = TSSLSocket('localhost', TEST_PORT, cert_reqs=ssl.CERT_NONE, certfile=CLIENT_CERT, keyfile=CLIENT_KEY)
+        self._assert_connection_success(server, client)
+
+        server = TSSLServerSocket(
+            port=TEST_PORT, cert_reqs=ssl.CERT_OPTIONAL, keyfile=SERVER_KEY,
+            certfile=SERVER_CERT, ca_certs=CLIENT_CA)
         client = TSSLSocket('localhost', TEST_PORT, cert_reqs=ssl.CERT_NONE, certfile=CLIENT_CERT, keyfile=CLIENT_KEY)
         self._assert_connection_success(server, client)
 
@@ -264,14 +285,16 @@
             return
         server_context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
         server_context.load_cert_chain(SERVER_CERT, SERVER_KEY)
-        server_context.load_verify_locations(CLIENT_CERT)
+        server_context.load_verify_locations(CLIENT_CA)
+        server_context.verify_mode = ssl.CERT_REQUIRED
+        server = TSSLServerSocket(port=TEST_PORT, ssl_context=server_context)
 
         client_context = ssl.create_default_context(ssl.Purpose.SERVER_AUTH)
         client_context.load_cert_chain(CLIENT_CERT, CLIENT_KEY)
         client_context.load_verify_locations(SERVER_CERT)
-
-        server = TSSLServerSocket(port=TEST_PORT, ssl_context=server_context)
+        client_context.verify_mode = ssl.CERT_REQUIRED
         client = TSSLSocket('localhost', TEST_PORT, ssl_context=client_context)
+
         self._assert_connection_success(server, client)
 
 if __name__ == '__main__':