diff --git a/tests/script/fullGeneralSuite.sim b/tests/script/fullGeneralSuite.sim
index 54b8cbd652ae78f135a742716719aff3ec8e1bf3..a1f00b909683737441b03aecece3b3ddc03c65d6 100644
--- a/tests/script/fullGeneralSuite.sim
+++ b/tests/script/fullGeneralSuite.sim
@@ -38,6 +38,7 @@ run general/compute/stddev.sim
 run general/compute/sum.sim
 run general/compute/top.sim
 run general/compute/block_dist.sim
+run general/compute/math_funcs.sim
 run general/compute/scalar_pow.sim
 run general/compute/scalar_triangle.sim
 run general/compute/scalar_str_concat_len.sim
diff --git a/tests/script/general/compute/scalar_str_concat_len.sim b/tests/script/general/compute/scalar_str_concat_len.sim
index 21bf762ea8725078d2cb3fbbb694e4573be9be03..bce47896b00cfed41c509c6af2819341aab27b14 100644
--- a/tests/script/general/compute/scalar_str_concat_len.sim
+++ b/tests/script/general/compute/scalar_str_concat_len.sim
@@ -262,6 +262,27 @@ sql_error select concat_ws(c2) from $tb session(ts, 30s);
 sql_error select concat_ws(c2) from $stb slimit 2;
 
 sql_error select concat_ws(c2) from $stb interval(1m) slimit 2;
+
+sql_error select char_length(c2) from $stb group by tbname;
+
+sql_error select char_length(c2) from $stb group by tgcol;
+
+sql_error select char_length(c2) from $stb group by c3;
+
+sql_error select char_length(c2) from $stb interval(1m);
+
+sql_error select char_length(c2) from $stb state_window(c7);
+
+sql_error select char_length(c2) from $tb state_window(c7);
+
+sql_error select char_length(c2) from $stb session(ts, 30s);
+
+sql_error select char_length(c2) from $tb session(ts, 30s);
+
+sql_error select char_length(c2) from $stb slimit 2;
+
+sql_error select char_length(c2) from $stb interval(1m) slimit 2;
+
 print =============== trival test
 
 print execute sql select concat(c2,c3),concat(c2,c3,c4),concat(c2,c3,c4,c5) from ct1
diff --git a/tests/script/general/compute/testSuite.sim b/tests/script/general/compute/testSuite.sim
index 30a364d77bb3c409f710128463730613280e97e8..c4daf742f65e1d330a2a74071342566518ea890f 100644
--- a/tests/script/general/compute/testSuite.sim
+++ b/tests/script/general/compute/testSuite.sim
@@ -20,6 +20,7 @@ run general/compute/stddev.sim
 run general/compute/sum.sim
 run general/compute/top.sim
 run general/compute/block_dist.sim
+run general/compute/math_funcs.sim
 run general/compute/scalar_pow.sim
 run general/compute/scalar_triangle.sim
 run general/compute/scalar_str_concat_len.sim
diff --git a/tests/script/regressionSuite.sim b/tests/script/regressionSuite.sim
index 457a47c57e7dccb24271ba2588233f149b337e15..cb3d5cd62c81d1f4007a15d0ec3ceb3ff1c50e2b 100644
--- a/tests/script/regressionSuite.sim
+++ b/tests/script/regressionSuite.sim
@@ -38,6 +38,7 @@ run general/compute/stddev.sim
 run general/compute/sum.sim
 run general/compute/top.sim
 run general/compute/block_dist.sim
+run general/compute/math_funcs.sim
 run general/compute/scalar_pow.sim
 run general/compute/scalar_triangle.sim
 run general/compute/scalar_str_concat_len.sim