require 'rails_helper' describe Notification, type: :model do it 'should be of class Notification' do expect(subject.class).to eq Notification end describe 'Database table' do it { should have_db_column :id } it { should have_db_column :title } it { should have_db_column :message } it { should have_db_column :type_of } it { should have_db_column :generator_user_id } it { should have_db_column :created_at } it { should have_db_column :updated_at } end describe 'Relations' do it { should belong_to(:generator_user).class_name('User') } it { should have_many :users } it { should have_many :user_notifications } end end