require 'spec_helper' describe Gitlab::Ci::Config::Node::Image do let(:entry) { described_class.new(config) } describe 'validation' do context 'when entry config value is correct' do let(:config) { 'ruby:2.2' } describe '#value' do it 'returns image string' do expect(entry.value).to eq 'ruby:2.2' end end describe '#errors' do it 'does not append errors' do expect(entry.errors).to be_empty end end describe '#valid?' do it 'is valid' do expect(entry).to be_valid end end end context 'when entry value is not correct' do let(:config) { ['ruby:2.2'] } describe '#errors' do it 'saves errors' do expect(entry.errors) .to include 'image config should be a string' end end describe '#valid?' do it 'is not valid' do expect(entry).not_to be_valid end end end end end