require 'rails_helper' require 'rake' describe 'rake db:dev_seed' do before do Rake.application.rake_require('tasks/db') Rake::Task.define_task(:environment) end let :run_rake_task do Rake::Task['db:dev_seed'].reenable Rake.application.invoke_task('db:dev_seed') end it 'seeds the database without errors' do expect { run_rake_task }.to_not raise_error end end