diff --git a/tests/system-test/0-others/check_assert.py b/tests/system-test/0-others/check_assert.py
new file mode 100644
index 0000000000000000000000000000000000000000..59fb223528bf2351ca5cd5a8a6af1d317558c26a
--- /dev/null
+++ b/tests/system-test/0-others/check_assert.py
@@ -0,0 +1,219 @@
+###################################################################
+#           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 *
+from util.common import *
+from util.sqlset import *
+
+'''
+
+import sys
+import random
+import os
+
+#define code
+NO_FOUND      = 0  # not found assert or ASSERT 
+FOUND_OK      = 1  # found ASSERT and valid usage
+FOUND_NOIF    = 2  # found ASSERT but no if like  ASSERT(...)
+FOUND_LOWER   = 3  # found assert write with lower letters
+FOUND_HAVENOT = 4  # found ASSERT have if but have not like if(!ASSERT)
+
+code_strs = ["not found", "valid", "found but no if", "lower assert","found but have not"]
+
+
+#
+# check assert
+#
+class CheckAssert:
+    def __init__(self):
+        self.files = 0
+        self.total = [0,0,0,0,0]
+
+    def wholeMatched(self, line, pos, n):
+        before = False
+        after  = False
+        if pos != -1:
+            if pos == 0 or line[pos-1] == ' ' or line[pos-1] == '!' or line[pos-1] == '(':
+                before = True
+            if n > pos + 6 + 1:
+                last = line[pos+6]
+                if last == ' ' or last == '(':
+                    after = True
+
+        if before and after:
+            return True
+        else:
+            return False            
+
+    
+    def parseLine(self, line):
+        
+        # see FOUND_xxx define below
+        code = 0
+
+        n = len(line)
+        if(n < 7):
+            return NO_FOUND
+        s1 = line.find("//")  # commit line
+ 
+        # assert
+        pos = line.find("assert")
+        if pos != -1:
+            if self.wholeMatched(line, pos, n):
+                # comment line check
+                if not (s1 != -1 and s1 < pos):
+                    return FOUND_LOWER
+        
+        # ASSERT
+        pos = 0
+        while pos < n:        
+            pos = line.find("ASSERT", pos)
+            #print(f"   pos={pos} {line}")
+            if pos == -1:
+                return NO_FOUND
+            if self.wholeMatched(line, pos, n):
+                break
+            # next
+            pos += 6
+
+        #
+        # found 
+        #
+
+        # comment line
+        if s1 != -1 and s1 < pos:
+            return NO_FOUND
+        # check if
+        s2 = line.find("if")
+        if s2 == -1 or s2 > pos or  pos - s2 > 5:
+            return FOUND_NOIF
+        s3 = line.find("!")
+        # if(!ASSERT
+        if s3 > s2 and s3 < pos:
+            return FOUND_HAVENOT
+        
+        return FOUND_OK
+
+
+    def checkFile(self, pathfile):
+        # check .h .c
+        ext = pathfile[-2:].lower()
+        if ext != ".h" and ext != ".c":
+            return 
+  
+        print(" check file %s"%pathfile)
+        self.files += 1
+        err = 0
+        ok  = 0
+        i = 0
+
+        # read file context 
+        with open(pathfile, "r") as fp:
+            lines = fp.readlines()
+            for line in lines:
+                i += 1
+                code = self.parseLine(line)
+                self.total[code] += 1
+                if code == FOUND_OK:
+                    ok += 1
+                if code != NO_FOUND and code != FOUND_OK:
+                    err += 1
+                if code != NO_FOUND:
+                    print(f"    line: {i} code: {code} {line}")
+        
+        # parse end output total
+        if err > 0 or ok > 0:
+            print(f" found problem: {err} \n")
+            
+
+    def scanPath(self, path):
+        #print(" check path %s"%path)
+
+        ignores = ["/test/"]
+        for ignore in ignores:
+            if ignore in path:
+                print(f"  ignore {path}  keyword:  {ignore}")
+                return
+
+        with os.scandir(path) as childs:
+            for child in childs:
+                if child.is_file():
+                    self.checkFile(os.path.join(path, child.name))
+                elif child.is_dir():
+                    self.scanPath(child.path)   
+
+
+    def doCheck(self, path):
+        print(f" start check path:{path}")
+        self.scanPath(path)
+
+        # print total
+        print("\n")
+        print(f" ---------------  total ({self.files} files)--------------")
+        for i in range(5):
+            print(f"    code : {i}  num: {self.total[i]}    ({code_strs[i]})")
+        print(" ---------------  end ----------------")    
+        print(f"\n")
+
+#
+#  main function
+#
+
+if __name__ == "__main__":
+    print(" hello, welcome to use check assert tools 1.0.")
+    path = os.path.dirname(os.path.realpath(__file__))
+    label = "TDengine"
+    pos = path.find(label)
+    if pos != -1:
+        pos += len(label) + 1
+        src = path[0:pos] + "source"
+    else:
+        src = path
+
+    checker = CheckAssert()
+    checker.doCheck(src)
+    print(" check assert finished")
+    
+
+
+'''
+class TDTestCase:
+    def init(self, conn, logSql, replicaVar=1):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        self.checker = CheckAssert()
+
+    # run
+    def run(self):
+        # calc
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+        projPath = ""
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        src = self.projPath + "src/"
+        self.checker.checkAssert(src)    
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+'''
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