tap/spec/models/barcode_spec.rb

describe Barcode do
  before :each do
    @barcode = create :barcode
  end

  it 'has a valid factory' do
    expect(@barcode).to be_valid
  end

  ############
  #  FIELDS  #
  ############

  describe 'fields' do
    describe 'code' do
      it 'should be present' do
        @barcode.code = nil
        expect(@barcode).to_not be_valid
      end

      it 'should be unique' do
        barcode = build :barcode, code: @barcode.code
        expect(barcode).to_not be_valid
      end
    end

    describe 'product' do
      it 'should be present' do
        @barcode.product = nil
        expect(@barcode).to_not be_valid
      end
    end
  end
end