[U-Boot] u-boot script "test"

[Sridhar Addagada]

What is the behavior of test command when the variable is not present in the uboot env

set x
if test $x = 1; then echo "Yes"; else echo "No"; fi

in the above case I get Yes echoed back.

Is there any way to test the presence of a variable in uboot script?

Thanks
Sridhar