Fix assertions of wrong type in test `test_string_to_score`
Fix assertions of wrong type in test `test_string_to_score`

Should be `assertEquals()`.

josiahcarlson/redis-in-action,josiahcarlson/redis-in-action,josiahcarlson/redis-in-action,josiahcarlson/redis-in-action,josiahcarlson/redis-in-action,josiahcarlson/redis-in-action