Install PostgreSQL then creates a database for development:
$ createdb twitter_dev
create user table:
$ psql -d twitter_dev
twitter_dev=# CREATE TABLE "user" (
id bigserial primary key,
email varchar(255) not null,
password_digest varchar(255) not null
);
$ bin/kingfisher s
$ createdb twitter_test
$ psql -d twitter_test
twitter_test=# CREATE TABLE "user" (
id bigserial primary key,
email varchar(255) not null,
password_digest varchar(255) not null
);
$ rspec