require 'test_helper'

module Vedeu

  module Colours

  describe Repository do

      let(:described) { Vedeu::Colours::Repository }
      let(:instance)  { described.new }
      let(:storage)   { {} }

      describe '#initialize' do
        it { instance.must_be_instance_of(described) }
        it { instance.instance_variable_get('@storage').must_equal(storage) }
      end

      describe 'accessors' do
        it { instance.must_respond_to(:storage) }
      end

      describe '#register' do
        let(:colour)          { 'ff0000' }
        let(:escape_sequence) { 'fake_escape_sequence' }

        subject { instance.register(colour, escape_sequence) }

        it { subject.must_equal('fake_escape_sequence') }
      end

      describe '#registered?' do
        let(:colour) {}

        subject { instance.registered?(colour) }

        context 'when the colour is registered' do
          let(:colour) { '#aa0000' }

          before { instance.register(colour, 'fake_escape_sequence') }

          it { subject.must_equal(true) }
        end

        context 'when the colour is not registered' do
          it { subject.must_equal(false) }
        end
      end

      describe '#reset!' do
        subject { instance.reset! }

        it { subject.must_be_instance_of(Hash) }

        it { subject.must_equal({}) }
      end

      describe '#retrieve' do
        let(:colour) {}

        subject { instance.retrieve(colour) }

        context 'when the colour can be found' do
          let(:colour) { '#bb0000' }

          before { instance.register(colour, 'fake_escape_sequence') }

          it { subject.must_equal('fake_escape_sequence') }
        end

        context 'when the colour cannot be found' do
          it { subject.must_equal('') }
        end
      end

      describe '#retrieve_or_register' do
        let(:colour)          { '#cc0000' }
        let(:escape_sequence) { 'escape_sequence' }

        subject { instance.retrieve_or_register(colour, escape_sequence) }

        context 'when the colour is registered' do
          let(:colour) { '#cc0000' }

          before { instance.register(colour, 'fake_escape_sequence') }

          it { subject.must_equal('fake_escape_sequence') }
        end

        context 'when the colour is not registered' do
          it { subject.must_equal('escape_sequence') }
        end
      end

    end # Repository

  end # Colours

end # Vedeu