require 'spec_helper' describe Object do context 'basic object' do let(:object) { described_class.new } describe 'warn_gem_missing' do it 'should warn right' do object.should_receive(:warn).once.with "gnorf gem missing!\nTo use gnarble gnarf, you need to:\n 1. Add the following line to Gemfile:\n gem 'gnorf'\n 2. Then, run:\n bundle update\n" object.warn_gem_missing 'gnorf', 'gnarble gnarf' end end end end