How to verify a TAR backup?

I am having problem using -W or –verify of TAR command, be it to remote tape drive or on server itself.

I have tried with corresponding error prompted:
[1] >> tar –verify test.tar
You must specify one of the `-Acdtrux’ options

[2] >> tar -dW test.tar
[3] >> tar -tW test.tar
Cannot verify stdin/stdout archive

[4] >> tar –diff –file /dev/st0 –verbose –verify
No response.

Could someone quote me an example on how use the combination?