openfoodnetwork/spec/models/order_spec.rb

require 'spec_helper'

describe Spree::Order do
  it "sets attributes on line items for variants" do
    d = create(:distributor_enterprise)
    p = create(:product, :distributors => [d])

    subject.distributor = d
    subject.save!

    subject.add_variant(p.master, 1)
    subject.set_variant_attributes(p.master, {'max_quantity' => '3'})

    li = Spree::LineItem.last
    li.max_quantity.should == 3
  end

  describe "updating the distribution charge" do
    let(:order) { build(:order) }

    it "ensures the correct adjustment(s) are created for the product distribution" do
      line_item = double(:line_item)
      subject.stub(:line_items) { [line_item] }

      product_distribution = double(:product_distribution)
      product_distribution.should_receive(:ensure_correct_adjustment_for).with(line_item)
      subject.stub(:product_distribution_for) { product_distribution }

      subject.send(:update_distribution_charge!)
    end

    it "skips line items that don't have a product distribution" do
      line_item = double(:line_item)
      subject.stub(:line_items) { [line_item] }

      subject.stub(:product_distribution_for) { nil }

      subject.send(:update_distribution_charge!)
    end

    it "looks up product distribution enterprise fees for a line item" do
      product = double(:product)
      variant = double(:variant, product: product)
      line_item = double(:line_item, variant: variant)

      product_distribution = double(:product_distribution)
      product.should_receive(:product_distribution_for).with(subject.distributor) { product_distribution }

      subject.send(:product_distribution_for, line_item).should == product_distribution
    end
  end

  describe "setting the distributor" do
    it "sets the distributor when no order cycle is set" do
      d = create(:distributor_enterprise)
      subject.set_distributor! d
      subject.distributor.should == d
    end

    it "keeps the order cycle when it is available at the new distributor" do
      d = create(:distributor_enterprise)
      oc = create(:simple_order_cycle)
      create(:exchange, order_cycle: oc, sender: oc.coordinator, receiver: d)

      subject.order_cycle = oc
      subject.set_distributor! d

      subject.distributor.should == d
      subject.order_cycle.should == oc
    end

    it "clears the order cycle if it is not available at that distributor" do
      d = create(:distributor_enterprise)
      oc = create(:simple_order_cycle)

      subject.order_cycle = oc
      subject.set_distributor! d

      subject.distributor.should == d
      subject.order_cycle.should be_nil
    end

    it "clears the distributor when setting to nil" do
      d = create(:distributor_enterprise)
      subject.set_distributor! d
      subject.set_distributor! nil

      subject.distributor.should be_nil
    end
  end

  describe "setting the order cycle" do
    it "sets the order cycle when no distributor is set" do
      oc = create(:simple_order_cycle)
      subject.set_order_cycle! oc
      subject.order_cycle.should == oc
    end

    it "keeps the distributor when it is available in the new order cycle" do
      oc = create(:simple_order_cycle)
      d = create(:distributor_enterprise)
      create(:exchange, order_cycle: oc, sender: oc.coordinator, receiver: d)

      subject.distributor = d
      subject.set_order_cycle! oc

      subject.order_cycle.should == oc
      subject.distributor.should == d
    end

    it "clears the distributor if it is not available at that order cycle" do
      oc = create(:simple_order_cycle)
      d = create(:distributor_enterprise)

      subject.distributor = d
      subject.set_order_cycle! oc

      subject.order_cycle.should == oc
      subject.distributor.should be_nil
    end

    it "clears the order cycle when setting to nil" do
      oc = create(:simple_order_cycle)
      subject.set_order_cycle! oc
      subject.set_order_cycle! nil

      subject.order_cycle.should be_nil
    end
  end

  context "validating distributor changes" do
    it "checks that a distributor is available when changing" do
      order_enterprise = FactoryGirl.create(:enterprise, id: 1, :name => "Order Enterprise")
      subject.distributor = order_enterprise
      product1 = FactoryGirl.create(:product)
      product2 = FactoryGirl.create(:product)
      product3 = FactoryGirl.create(:product)
      variant11 = FactoryGirl.create(:variant, product: product1)
      variant12 = FactoryGirl.create(:variant, product: product1)
      variant21 = FactoryGirl.create(:variant, product: product2)
      variant31 = FactoryGirl.create(:variant, product: product3)
      variant32 = FactoryGirl.create(:variant, product: product3)

      # Product Distributions
      # Order Enterprise sells product 1 and product 3
      FactoryGirl.create(:product_distribution, product: product1, distributor: order_enterprise)
      FactoryGirl.create(:product_distribution, product: product3, distributor: order_enterprise)

      # Build the current order
      line_item1 = FactoryGirl.create(:line_item, order: subject, variant: variant11)
      line_item2 = FactoryGirl.create(:line_item, order: subject, variant: variant12)
      line_item3 = FactoryGirl.create(:line_item, order: subject, variant: variant31)
      subject.reload
      subject.line_items = [line_item1,line_item2,line_item3]

      test_enterprise = FactoryGirl.create(:enterprise, id: 2, :name => "Test Enterprise")
      # Test Enterprise sells only product 1
      FactoryGirl.create(:product_distribution, product: product1, distributor: test_enterprise)

      subject.distributor = test_enterprise
      subject.should_not be_valid
      subject.errors.messages.should == {distributor_id: ["cannot supply the products in your cart"]}
    end
  end
end