require 'spec_helper'

module Spree
  describe Api::InventoryUnitsController, type: :controller do
    render_views

    before do
      stub_authentication!
      @inventory_unit = create(:inventory_unit)
    end

    context "as an admin" do
      sign_in_as_admin!
      let(:variant) { create(:variant) }

      it "gets an inventory unit" do
        api_get :show, id: @inventory_unit.id
        expect(json_response['state']).to eq @inventory_unit.state
      end

      it "updates an inventory unit" do
        api_put :update, id: @inventory_unit.id,
                         inventory_unit: { variant_id: variant.id }
        expect(json_response['variant_id']).to eq variant.id
      end

      context 'fires state event' do
        it 'if supplied with :fire param' do
          api_put :update, id: @inventory_unit.id,
                           fire: 'ship',
                           inventory_unit: { variant_id: variant.id }

          expect(json_response['state']).to eq 'shipped'
        end

        it 'and returns exception if cannot fire' do
          api_put :update, id: @inventory_unit.id,
                           fire: 'return'
          expect(json_response['exception']).to match /cannot transition to return/
        end

        it 'and returns exception bad state' do
          api_put :update, id: @inventory_unit.id,
                           fire: 'bad'
          expect(json_response['exception']).to match /cannot transition to bad/
        end
      end
    end
  end
end