require 'rails_helper' describe TaskComment, type: :model do it 'should be of class TaskComment' do expect(subject.class).to eq TaskComment end describe 'Database table' do it { should have_db_column :message } it { should have_db_column :user_id } it { should have_db_column :created_at } it { should have_db_column :updated_at } it { should have_db_column :last_modified_by_id } it { should have_db_column :type } it { should have_db_column :associated_id } end describe 'Relations' do it { should belong_to :my_module } end describe 'Should be a valid object' do it { should validate_presence_of :my_module } end end