case: add stream basic test case

tests/system-test/8-stream/stream_basic.py

@@ -0,0 +1,110 @@
+###################################################################
+#           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 *
+from util.autogen import *
+
+import random
+import time
+import traceback
+import os
+from   os import path
+
+
+class TDTestCase:
+    # init 
+    def init(self, conn, logSql, replicaVar=1):
+        self.replicaVar = int(replicaVar)
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), True)
+        
+        # autoGen
+        self.autoGen = AutoGen()
+                        
+    def waitTranslation(self, waitSeconds):
+        # wait end
+        for i in range(waitSeconds):
+            sql ="show transactions;"
+            rows = tdSql.query(sql)
+            if rows == 0:
+               return True
+            tdLog.info(f"i={i} wait for translation finish ...")
+            time.sleep(1)
+
+        return False
+
+    def getPath(self, tool="taosBenchmark"):
+        if (platform.system().lower() == 'windows'):
+            tool = tool + ".exe"
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        paths = []
+        for root, dirs, files in os.walk(projPath):
+            if ((tool) in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    paths.append(os.path.join(root, tool))
+                    break
+        if (len(paths) == 0):
+            tdLog.exit("taosBenchmark not found!")
+            return
+        else:
+            tdLog.info("taosBenchmark found in %s" % paths[0])
+            return paths[0]
+
+    def taosBenchmark(self, param):
+        binPath = self.getPath()
+        cmd = f"{binPath} {param}"
+        tdLog.info(cmd)
+        os.system(cmd)
+
+    # run
+    def run(self):
+        # gen data
+        random.seed(int(time.time()))
+        self.taosBenchmark(" -d db -t 2 -v 2 -n 1000000 -y")
+        # create stream
+        tdSql.execute("use db")
+        tdSql.execute("create stream stream1 fill_history 1 into sta as select count(*) as cnt from meters interval(10a);",show=True)
+        sql = "select count(*) from sta"
+        # loop wait max 60s to check count is ok
+        tdLog.info("loop wait result ...")
+        tdSql.checkDataLoop(0, 0, 99999, sql, loopCount=120, waitTime=0.5)
+
+        # check all data is correct
+        sql = "select * from sta where cnt != 20;"
+        tdSql.query(sql)
+        tdSql.checkRows(0)
+
+        # check ts interval is correct
+        sql = "select * from ( select diff(_wstart) as tsdif from sta ) where tsdif != 10;"
+        tdSql.query(sql)
+        tdSql.checkRows(0)
+
+    # stop
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addLinux(__file__, TDTestCase())