[TS-4893]<test>: add CI test cases test_function

tests/army/query/function/ans/rand.csv

@@ -0,0 +1,21 @@
+0.663936012733698
+0.840187717154710
+0.840187717154710
+0.700976369297587
+0.561380175203728
+0.916457875592847
+0.274745596235034
+0.135438768721856
+0.486904139391568
+0.352760728612896
+0.206965447965528
+0.419929514834624
+0.419929514834624
+0.419929514834624
+0.419929514834624
+0.419929514834624
+0.419929514834624
+0.419929514834624
+0.419929514834624
+0.419929514834624
+0.419929514834624

tests/army/query/function/in/rand.in

@@ -0,0 +1,3 @@
+select RAND(1245);
+select RAND(id) from ts_4893.d0 limit 10;
+select RAND(id) from ts_4893.d0 order by id desc limit 10;

tests/army/query/function/test_function.py

@@ -509,31 +509,98 @@ class TDTestCase(TBase):
         tdSql.error(
             "select * from (select to_iso8601(ts, timezone()), timezone() from meters order by ts desc) limit 1000;",
             expectErrInfo="Not supported timzone format")  # TS-5340
+
+    def test_rand(self):
+        self.test_normal_query("rand")
+
+        tdSql.query("select rand();")
+        tdSql.checkRows(1)
+        tdSql.checkCols(1)
+        self.check_result_in_range(0, 0)
+
+        tdSql.query("select rand(null);")
+        tdSql.checkRows(1)
+        tdSql.checkCols(1)
+        self.check_result_in_range(0, 0)
+
+        tdSql.query("select rand() from (select 1) t limit 1;")
+        tdSql.checkRows(1)
+        tdSql.checkCols(1)
+        self.check_result_in_range(0, 0)
+
+        tdSql.query("select rand(id) from ts_4893.d0 limit 100;")
+        tdSql.checkRows(100)
+        tdSql.checkCols(1)
+        for i in range(len(tdSql.res)):
+            self.check_result_in_range(i, 0)
+
+        tdSql.query("select rand(id) from ts_4893.meters limit 100;")
+        tdSql.checkRows(100)
+        tdSql.checkCols(1)
+        for i in range(len(tdSql.res)):
+            self.check_result_in_range(i, 0)
+
+        tdSql.query("select rand(123), rand(123);")
+        tdSql.checkRows(1)
+        tdSql.checkCols(2)
+        if tdSql.res[0][0] != tdSql.res[0][1]:
+            caller = inspect.getframeinfo(inspect.stack()[1][0])
+            args = (caller.filename, caller.lineno, tdSql.sql, tdSql.res[0][0], tdSql.res[0][1])
+            tdLog.exit("%s(%d) failed: sql:%s data1:%s ne data2:%s" % args)
+
+    def check_result_in_range(self, row, col):
+        res = tdSql.res[row][col]
+        if res < 0 or res >= 1:
+            caller = inspect.getframeinfo(inspect.stack()[1][0])
+            args = (caller.filename, caller.lineno, tdSql.sql, row, col, res)
+            tdLog.exit("%s(%d) failed: sql:%s row:%s col:%s data:%s lt 0 or ge 1" % args)
+
+    def test_max(self):
+        self.test_normal_query("max")
+
+        tdSql.query("select max(null) from ts_4893.meters;")
+        tdSql.checkRows(1)
+        tdSql.checkCols(1)
+        tdSql.checkData(0, 0, 'None')
+
+        tdSql.query("select max(id) from ts_4893.meters;")
+        tdSql.checkRows(1)
+
+        tdSql.query("select max(name) from ts_4893.meters;")
+        tdSql.checkRows(1)
+
+        tdSql.query("select max(current) from ts_4893.meters;")
+        tdSql.checkRows(1)
+
+        tdSql.query("select max(nch1) from ts_4893.meters;")
+        tdSql.checkRows(1)
+
+        tdSql.query("select max(var1) from ts_4893.meters;")
+        tdSql.checkRows(1)
+
     def test_min(self):
         self.test_normal_query("min")
 
-        tdSql.query("select min(var1), min(id) from ts_4893.d0;")
+        tdSql.query("select min(null) from ts_4893.meters;")
         tdSql.checkRows(1)
-        tdSql.checkData(0, 0, 'abc一二三abc一二三abc')
+        tdSql.checkCols(1)
-        tdSql.checkData(0, 1, 0)
+        tdSql.checkData(0, 0, 'None')
-    def test_max(self):
+
-        self.test_normal_query("max")
+        tdSql.query("select min(id) from ts_4893.meters;")
-        tdSql.query("select max(var1), max(id) from ts_4893.d0;")
-        tdSql.checkRows(1)
-        tdSql.checkData(0, 0, '一二三四五六七八九十')
-        tdSql.checkData(0, 1, 9999)
-    def test_rand(self):
-        tdSql.query("select rand();")
         tdSql.checkRows(1)
 
-        tdSql.query("select rand(1);")
+        tdSql.query("select min(name) from ts_4893.meters;")
         tdSql.checkRows(1)
 
-        tdSql.query("select rand(1) from ts_4893.meters limit 10;")
+        tdSql.query("select min(current) from ts_4893.meters;")
-        tdSql.checkRows(10)
+        tdSql.checkRows(1)
+
+        tdSql.query("select min(nch1) from ts_4893.meters;")
+        tdSql.checkRows(1)
+
+        tdSql.query("select min(var1) from ts_4893.meters;")
+        tdSql.checkRows(1)
 
-        tdSql.query("select rand(id) from ts_4893.d0 limit 10;")
-        tdSql.checkRows(10)
     # run
     def run(self):
         tdLog.debug(f"start to excute {__file__}")
@@ -576,8 +643,8 @@ class TDTestCase(TBase):
         self.test_varpop()
 
         # select function
-        self.test_min()
         self.test_max()
+        self.test_min()
 
         # error function
         self.test_error()