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# frozen_string_literal: true
RSpec.shared_examples 'versioned description' do
describe 'associations' do
it { is_expected.to have_many(:description_versions) }
end
describe 'save_description_version' do
let(:factory_name) { described_class.name.underscore.to_sym }
let!(:model) { create(factory_name, description: 'Original description') }
context 'when description was changed' do
before do
model.update!(description: 'New description')
end
it 'saves the old and new description for the first update' do
expect(model.description_versions.first.description).to eq('Original description')
expect(model.description_versions.last.description).to eq('New description')
end
it 'only saves the new description for subsequent updates' do
expect { model.update!(description: 'Another description') }.to change { model.description_versions.count }.by(1)
expect(model.description_versions.last.description).to eq('Another description')
end
it 'sets the new description version to `saved_description_version`' do
expect(model.saved_description_version).to eq(model.description_versions.last)
end
it 'clears `saved_description_version` after another save that does not change description' do
model.save!
expect(model.saved_description_version).to be_nil
end
end
context 'when description was not changed' do
it 'does not save any description version' do
expect { model.save! }.not_to change { model.description_versions.count }
expect(model.saved_description_version).to be_nil
end
end
end
end
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