diff --git a/tests/pytest/insert/basic.py b/tests/pytest/insert/basic.py
index dcb5834d559968a964c4057c61d9b6a40cf8ab15..f23f38651aa57590a14824077e003812ea10d8bd 100644
--- a/tests/pytest/insert/basic.py
+++ b/tests/pytest/insert/basic.py
@@ -43,6 +43,9 @@ class TDTestCase:
         tdSql.query("select * from tb")
         tdSql.checkRows(insertRows + 4)
 
+        # test case for https://jira.taosdata.com:18080/browse/TD-3716:
+        tdSql.error("insert into tb(now, 1)")
+
     def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)
diff --git a/tests/pytest/topic/topicQuery.py b/tests/pytest/topic/topicQuery.py
index d4f8c4127d4622c0a8eab4585d0555d3e8bb8f1e..1ee3c3a4274d67a76fdae442b2d26a4de29392a2 100644
--- a/tests/pytest/topic/topicQuery.py
+++ b/tests/pytest/topic/topicQuery.py
@@ -54,11 +54,11 @@ class TDTestCase:
 
 
         tdSql.execute("use db")
-        tdSql.execute("create table test(ts timestamp, value int)")
-        tdSql.execute("insert into test values(%d, 1)" % self.ts)
-        tdSql.execute("insert into test values(%d, 1)" % (self.ts + 1))
-        tdSql.execute("insert into test values(%d, 1)" % (self.ts + 2))
-        tdSql.execute("insert into test values(%d, 1)" % (self.ts + 3))
+        tdSql.execute("create table test(ts timestamp, start timestamp, value int)")
+        tdSql.execute("insert into test values(%d, %d, 1)" % (self.ts, self.ts))
+        tdSql.execute("insert into test values(%d, %d, 1)" % (self.ts + 1, self.ts + 1))
+        tdSql.execute("insert into test values(%d, %d, 1)" % (self.ts + 2, self.ts + 2))
+        tdSql.execute("insert into test values(%d, %d, 1)" % (self.ts + 3, self.ts + 3))
 
         tdSql.query("select * from test")
         tdSql.checkRows(4)
@@ -72,6 +72,15 @@ class TDTestCase:
         tdSql.query("select * from test where ts = %d" % self.ts)
         tdSql.checkRows(1)
 
+        tdSql.query("select * from test where start >= %d" % self.ts)
+        tdSql.checkRows(4)
+
+        tdSql.query("select * from test where start > %d" % self.ts)
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from test where start = %d" % self.ts)
+        tdSql.checkRows(1)
+
         
     def stop(self):
         tdSql.close()
@@ -79,4 +88,4 @@ class TDTestCase:
 
 
 tdCases.addWindows(__file__, TDTestCase())
-tdCases.addLinux(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file