add sysinfo test case

tests/system-test/0-others/sysinfo.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+import subprocess
+from util.common import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.dbname = 'db'
+    def get_database_info(self):
+        tdSql.query('select database()')
+        tdSql.checkData(0,0,None)
+        tdSql.execute(f'create database if not exists {self.dbname}')
+        tdSql.execute(f'use {self.dbname}')
+        tdSql.query('select database()')
+        tdSql.checkData(0,0,self.dbname)
+        tdSql.execute(f'drop database {self.dbname}')
+        
+    def check_version(self):
+        taos_list = ['server','client']
+        for i in taos_list:
+            tdSql.query(f'select {i}_version()')
+            version_info = str(subprocess.run('cat ../../source/util/src/version.c |grep "char version"', shell=True,capture_output=True).stdout.decode('utf8')).split('"')[1]
+            tdSql.checkData(0,0,version_info)
+        
+    def get_server_status(self):
+        tdSql.query('select server_status()')
+        tdSql.checkData(0,0,1)
+        tdDnodes.stoptaosd(1)
+        
+        tdSql.query('select server_status()')
+        print(tdSql.queryResult)
+    def run(self):
+        self.get_database_info()
+        self.check_version()
+        # self.get_server_status()
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
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