-run_test 'verify gzip format' 'gunzip --test trash/test.tar.gz'
-run_test 'untar' 'tar -xf trash/test.tar.gz -C trash'
+run_test 'verify gzip format' 'gunzip --test trash/master.tar.gz'
+run_test 'untar' '
+ rm -rf trash/master &&
+ tar -xf trash/master.tar.gz -C trash
+'