Test runzeo msgpack support

src/ZEO/tests/testZEO.py

@@ -1462,6 +1462,35 @@ def ClientDisconnected_errors_are_TransientErrors():
     True
     """
 
+if os.environ.get('ZEO_MSGPACK'):
+    def test_runzeo_msgpack_support():
+        """
+        >>> import ZEO
+
+        >>> a, s = ZEO.server()
+        >>> conn = ZEO.connection(a)
+        >>> str(conn.db().storage.protocol_version.decode('ascii'))
+        'M5'
+        >>> conn.close(); s()
+        """
+else:
+    def test_runzeo_msgpack_support():
+        """
+        >>> import ZEO
+
+        >>> a, s = ZEO.server()
+        >>> conn = ZEO.connection(a)
+        >>> str(conn.db().storage.protocol_version.decode('ascii'))
+        'Z5'
+        >>> conn.close(); s()
+
+        >>> a, s = ZEO.server(zeo_conf=dict(msgpack=True))
+        >>> conn = ZEO.connection(a)
+        >>> str(conn.db().storage.protocol_version.decode('ascii'))
+        'M5'
+        >>> conn.close(); s()
+        """
+
 if sys.platform.startswith('win'):
     del runzeo_logrotate_on_sigusr2
     del unix_domain_sockets