How can I test that Spamassassin is properly recognizing spam?

To verify that spamassassin is indeed tagging messages as spam,
send an email with the following in the body. This should be put all on
one line without out any whitespace or page breaks:

XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X

This should be marked with a spam score of 1000.