Postgres: Create database with superuser and password - postgresql

Question

I created a Postgres database this way:
createdb massive
Then I added a role:
sudo -iu postgres
psql -d massive
CREATE ROLE rob WITH SUPERUSER CREATEDB CREATEROLE LOGIN ENCRYPTED PASSWORD 'password';
I quit psql with \q, then exit user postgres.
Now I try to login:
psql -U rob -d massive -h localhost -W
When entering password at the password prompt, I get this:
psql: FATAL: password authentication failed for user "rob"
Update:
\lin psql returns this:
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
massive | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
postgres | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
template0 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
\du returns this:
List of roles
Role name | Attributes | Member of
-----------+------------------------------------------------+-----------
postgres | Superuser, Create role, Create DB, Replication | {}
rob | Superuser, Create role, Create DB | {}