planet_express/spec/shipment_reader_spec.rb

# frozen_string_literal: true

RSpec.describe PlanetExpress::ShipmentReader do
  let(:shipping_option_repsitory) { PlanetExpress::ShippingOptionRepository.new }

  let(:input) { '' }

  subject { PlanetExpress::ShipmentReader.new(input, shipping_option_repsitory) }

  describe '#each' do
    context 'with a file' do
      let(:input) { File.read(File.expand_path('../fixtures/shipment_input_file.txt', __FILE__)) }
      let(:result) { subject.to_a }

      it 'parses the file' do
        expect(result.length).to eq(21)
        expect(result.select { |item| item.instance_of?(PlanetExpress::Shipment) }.length).to eq(20)
        expect(result.select { |item| item.instance_of?(PlanetExpress::InvalidShipment) }.length).to eq(1)
      end
    end

    context 'with valid shipment' do
      let(:input) { '2015-02-01 S MR' }

      let(:result) { subject.to_a }
      let(:shipment) { result.first }

      it 'returns a parsed shipment' do
        expect(shipment.date).to eq(Date.new(2015, 2, 1))
        expect(shipment.shipping_option).to eq(PlanetExpress::ShippingOption.new('MR', 'S', 200))
      end
    end

    context 'with an invalid shipment' do
      let(:input) { '2015-02-29 CUSPS' }

      let(:result) { subject.to_a }
      let(:shipment) { result.first }

      it 'returns an invalid shipment' do
        expect(shipment).to be_an_instance_of(PlanetExpress::InvalidShipment)
      end
    end
  end
end