-cp $TESTDIR/deb-bug-330162-encoded-tar-header.deb aptarchive/
-test -z "$(aptftparchive packages aptarchive/ 2>&1 | grep 'E:')" && msgpass || msgfail
+cp "$TESTDIR/deb-bug-330162-encoded-tar-header.deb" aptarchive/
+testsuccess aptftparchive packages aptarchive/