add test for new and old fnv methods
add test for new and old fnv methods

raintank/metrictank,raintank/raintank-metric,replay/metrictank,raintank/metrictank,replay/metrictank,replay/metrictank,raintank/raintank-metric,raintank/metrictank,raintank/metrictank,raintank/raintank-metric,replay/metrictank