[TD-2601][TD-2609][TD-2624]<test> add test case

tests/pytest/functions/all_null_value.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 -*-
+
+import sys
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+
+        self.rowNum = 10
+        self.ts = 1537146000000
+        
+    def run(self):
+        tdSql.prepare()
+        
+        tdSql.execute("create table st(ts timestamp, c1 int, c2 int)")        
+        for i in range(self.rowNum):
+            tdSql.execute("insert into st values(%d, null, null)" % (self.ts + i))
+
+        tdSql.query("select avg(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select max(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select min(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select bottom(c1, 1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select top(c1, 1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select diff(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select first(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select last(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select last_row(c1) from st")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, None)
+
+        tdSql.query("select count(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select leastsquares(c1, 1, 1) from st")
+        tdSql.checkRows(0)    
+
+        tdSql.query("select c1 + c2 from st")
+        tdSql.checkRows(10)
+
+        tdSql.query("select spread(c1) from st")
+        tdSql.checkRows(0)
+
+        # tdSql.query("select stddev(c1) from st")
+        # tdSql.checkRows(0)
+
+        tdSql.query("select sum(c1) from st")
+        tdSql.checkRows(0)
+
+        tdSql.query("select twa(c1) from st")
+        tdSql.checkRows(0)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/pytest/functions/function_percentile.py

@@ -143,6 +143,14 @@ class TDTestCase:
         tdSql.query("select apercentile(voltage, 20) from meters")
         print("apercentile result: %s" % tdSql.getData(0, 0))
 
+        # Test case for: https://jira.taosdata.com:18080/browse/TD-2609
+        tdSql.execute("create table st(ts timestamp, k int)")
+        tdSql.execute("insert into st values(now, -100)")
+        tdSql.query("select apercentile(k, 20) from st")
+        tdSql.checkData(0, 0, -100.00)
+
+
+        
     def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)

tests/pytest/functions/function_twa_test2.py

@@ -132,6 +132,22 @@ class TDTestCase:
         tdSql.query('select twa(c) from t4 interval(10s)')
         tdSql.checkData(0,1,10.999)
 
+        # Test case: https://jira.taosdata.com:18080/browse/TD-2624
+        tdSql.execute("create database test keep 7300")
+        tdSql.execute("use test")
+        tdSql.execute("create table st(ts timestamp, k int)")
+        tdSql.execute("insert into st values('2011-01-02 18:42:45.326', -1)")
+        tdSql.execute("insert into st values('2020-07-30 17:44:06.283', 0)")
+        tdSql.execute("insert into st values('2020-07-30 17:44:19.578', 9999999)")
+        tdSql.execute("insert into st values('2020-07-30 17:46:06.417', NULL)")
+        tdSql.execute("insert into st values('2020-11-09 18:42:25.538', 0)")
+        tdSql.execute("insert into st values('2020-12-29 17:43:11.641', 0)")
+        tdSql.execute("insert into st values('2020-12-29 18:43:17.129', 0)")
+        tdSql.execute("insert into st values('2020-12-29 18:46:19.109', NULL)")
+        tdSql.execute("insert into st values('2021-01-03 18:40:40.065', 0)")
+
+        tdSql.query("select twa(k),first(ts) as taos1  from st where k <50 interval(17s)")
+        tdSql.checkRows(6)
 
     def stop(self):
         tdSql.close()

tests/pytest/query/queryInterval.py

@@ -85,6 +85,22 @@ class TDTestCase:
         tdSql.query("select last(*) from t interval(1s)")
         tdSql.checkRows(10000)
 
+        # test case for https://jira.taosdata.com:18080/browse/TD-2601
+        newTs = 1601481600000
+
+        tdSql.execute("create database test2")
+        tdSql.execute("use test2")
+        tdSql.execute("create table t (ts timestamp, voltage int)")
+        for i in range(100):
+            tdSql.execute("insert into t values(%d, %d)" % (newTs + i * 10000000, i))
+        
+        tdSql.query("select sum(voltage) from t where ts >='2020-10-01 00:00:00' and ts <='2020-12-01 00:00:00' interval(1n) fill(NULL)")
+        tdSql.checkRows(3)
+        tdSql.checkData(0, 1, 4950)
+        tdSql.checkData(1, 1, None)
+        tdSql.checkData(2, 1, None)
+
+        
 
     def stop(self):
         tdSql.close()