* throw exception if op execution failed Signed-off-by: raver119 <raver119@gmail.com> * expected for test Signed-off-by: raver119 <raver119@gmail.com> * one more ismax test Signed-off-by: raver119 <raver119@gmail.com> * ismax view fix Signed-off-by: raver119 <raver119@gmail.com>