Cannot create model regression when using table_name_prefix

[Techbrunch]

ubuntu@localhost:~/app$ RAILS_ENV=test rails g regressor:model
Running via Spring preloader in process 3670
Cannot create model regression for User. Reason Mysql2::Error: Table 'app_test.users' doesn't exist: SHOW KEYS FROM `users`

If you are using a table_name_prefix:

ActiveRecord::Base.table_name_prefix = 'sr_'

Then running regressor will fail since it doesn't take it into account when retrieving the indexes:

module Regressor
  module Model
    module Database
      module Index
        def indices
          ::ActiveRecord::Base.connection.indexes(@model.tableize.gsub("/", "_")).map do |indexes|
            "it { is_expected.to have_db_index #{indexes.columns} }"
          end.flatten.join("\n  ")
        end
      end
    end
  end
end

To fix this the ActiveRecord class method table_namecan be used:

::ActiveRecord::Base.connection.indexes(@model.constantize.table_name).map do |indexes|