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No - Since you don't tell us what YOUR expected result is and what result you are getting that you think is wrong.
However, a couple of things that I notice:
1) You have a space between test= and the variable - that is not correct - you need to remove the space.
2) You have quotes around the variable ("A") which are unnecessary and might be treated literally in some contexts.
3) You do not have a space before your final right bracket which means the test is not recognized as such.
4) You not need quotes around $test in your test statements.
Try not to use negative checks (!=) try positive once (==) whenever possible. Have a look at these 2 examples:
if [ ! -z $test ]
if [ "$test" == "AB" ]
echo "first: Match"
echo "first: No Match"
if [ "$test" == "AB" ] || [ "$test" == "BC" ]
echo "second: Match"
echo "second: No Match"