require 'rails_helper' describe ProjectComment, type: :model do it 'should be of class MyModuleTag' do expect(subject.class).to eq ProjectComment end describe 'Database table' do it { should have_db_column :id } 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(:project).with_foreign_key('associated_id') } end describe 'Should be a valid object' do it { should validate_presence_of :project } end end