1 files changed, 4 insertions, 1 deletions
diff --git a/mysql-test/t/func_math.test b/mysql-test/t/func_math.test
index 5299897d0f0..74e8a5ce092 100644
--- a/mysql-test/t/func_math.test
+++ b/mysql-test/t/func_math.test
@@ -8,7 +8,10 @@ select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2)
 select round(5.5),round(-5.5);
 select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
 select abs(-10), sign(-5), sign(5), sign(0);
-select log(exp(10)),exp(log(sqrt(10))*2);
+select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
+select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
+select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
+select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
 select pow(10,log10(10)),power(2,4);
 select rand(999999),rand();
 select pi(),sin(pi()/2),cos(pi()/2),abs(tan(pi())),cot(1),asin(1),acos(0),atan(1);