openfoodnetwork/spec/models/spree/zone_spec.rb

# frozen_string_literal: true

require 'spec_helper'

describe Spree::Zone do
  context "#match" do
    let(:country_zone) { create(:zone, name: 'CountryZone') }
    let(:country) do
      country = create(:country)
      # Create at least one state for this country
      state = create(:state, country: country)
      country
    end

    before { country_zone.members.create(zoneable: country) }

    context "when there is only one qualifying zone" do
      let(:address) { create(:address, country: country, state: country.states.first) }

      it "should return the qualifying zone" do
        expect(Spree::Zone.match(address)).to eq country_zone
      end
    end

    context "when there are two qualified zones with same member type" do
      let(:address) { create(:address, country: country, state: country.states.first) }
      let(:second_zone) { create(:zone, name: 'SecondZone') }

      before { second_zone.members.create(zoneable: country) }

      context "when both zones have the same number of members" do
        it "should return the zone that was created first" do
          expect(Spree::Zone.match(address)).to eq country_zone
        end
      end

      context "when one of the zones has fewer members" do
        let(:country2) { create(:country) }

        before { country_zone.members.create(zoneable: country2) }

        it "should return the zone with fewer members" do
          expect(Spree::Zone.match(address)).to eq second_zone
        end
      end
    end

    context "when there are two qualified zones with different member types" do
      let(:state_zone) { create(:zone, name: 'StateZone') }
      let(:address) { create(:address, country: country, state: country.states.first) }

      before { state_zone.members.create(zoneable: country.states.first) }

      it "should return the zone with the more specific member type" do
        expect(Spree::Zone.match(address)).to eq state_zone
      end
    end

    context "when there are no qualifying zones" do
      it "should return nil" do
        expect(Spree::Zone.match(Spree::Address.new)).to be_nil
      end
    end
  end

  context "#countries" do
    let(:state) { create(:state) }
    let(:country) { state.country }

    context "when zone consists of countries" do
      let(:country_zone) { create(:zone, name: 'CountryZone') }

      before { country_zone.members.create(zoneable: country) }

      it 'should return a list of countries' do
        expect(country_zone.countries).to eq [country]
      end
    end

    context "when zone consists of states" do
      let(:state_zone) { create(:zone, name: 'StateZone') }

      before { state_zone.members.create(zoneable: state) }

      it 'should return a list of countries' do
        expect(state_zone.countries).to eq [state.country]
      end
    end
  end

  context "#include?" do
    let(:state) { create(:state) }
    let(:country) { state.country }
    let(:address) { create(:address, country: country, state: state) }

    context "when zone is country type" do
      let(:country_zone) { create(:zone, name: 'CountryZone') }
      before { country_zone.members.create(zoneable: country) }

      it "should be true" do
        expect(country_zone.include?(address)).to be_truthy
      end
    end

    context "when zone is state type" do
      let(:state_zone) { create(:zone, name: 'StateZone') }
      before { state_zone.members.create(zoneable: state) }

      it "should be true" do
        expect(state_zone.include?(address)).to be_truthy
      end
    end
  end

  context ".default_tax" do
    context "when there is a default tax zone specified" do
      before { @foo_zone = create(:zone, name: 'whatever', default_tax: true) }

      it "should be the correct zone" do
        foo_zone = create(:zone, name: 'foo')
        expect(Spree::Zone.default_tax).to eq @foo_zone
      end
    end

    context "when there is no default tax zone specified" do
      it "should be nil" do
        expect(Spree::Zone.default_tax).to be_nil
      end
    end
  end

  context "#contains?" do
    let(:country1) { create(:country) }
    let(:country2) { create(:country) }
    let(:country3) { create(:country) }

    before do
      @source = create(:zone, name: 'source', zone_members: [])
      @target = create(:zone, name: 'target', zone_members: [])
    end

    context "when the target has no members" do
      before { @source.members.create(zoneable: country1) }

      it "should be false" do
        expect(@source.contains?(@target)).to be_falsy
      end
    end

    context "when the source has no members" do
      before { @target.members.create(zoneable: country1) }

      it "should be false" do
        expect(@source.contains?(@target)).to be_falsy
      end
    end

    context "when both zones are the same zone" do
      before do
        @source.members.create(zoneable: country1)
        @target = @source
      end

      it "should be true" do
        expect(@source.contains?(@target)).to be_truthy
      end
    end

    context "when both zones are of the same type" do
      before do
        @source.members.create(zoneable: country1)
        @source.members.create(zoneable: country2)
      end

      context "when all members are included in the zone we check against" do
        before do
          @target.members.create(zoneable: country1)
          @target.members.create(zoneable: country2)
        end

        it "should be true" do
          expect(@source.contains?(@target)).to be_truthy
        end
      end

      context "when some members are included in the zone we check against" do
        before do
          @target.members.create(zoneable: country1)
          @target.members.create(zoneable: country2)
          @target.members.create(zoneable: create(:country))
        end

        it "should be false" do
          expect(@source.contains?(@target)).to be_falsy
        end
      end

      context "when none of the members are included in the zone we check against" do
        before do
          @target.members.create(zoneable: create(:country))
          @target.members.create(zoneable: create(:country))
        end

        it "should be false" do
          expect(@source.contains?(@target)).to be_falsy
        end
      end
    end

    context "when checking country against state" do
      before do
        @source.members.create(zoneable: create(:state))
        @target.members.create(zoneable: country1)
      end

      it "should be false" do
        expect(@source.contains?(@target)).to be_falsy
      end
    end

    context "when checking state against country" do
      before { @source.members.create(zoneable: country1) }

      context "when all states contained in one of the countries we check against" do
        before do
          state1 = create(:state, country: country1)
          @target.members.create(zoneable: state1)
        end

        it "should be true" do
          expect(@source.contains?(@target)).to be_truthy
        end
      end

      context "when some states contained in one of the countries we check against" do
        before do
          state1 = create(:state, country: country1)
          @target.members.create(zoneable: state1)
          @target.members.create(zoneable: create(:state, country: country2))
        end

        it "should be false" do
          expect(@source.contains?(@target)).to be_falsy
        end
      end

      context "when none of the states contained in any of the countries we check against" do
        before do
          @target.members.create(zoneable: create(:state, country: country2))
          @target.members.create(zoneable: create(:state, country: country2))
        end

        it "should be false" do
          expect(@source.contains?(@target)).to be_falsy
        end
      end
    end
  end

  context "#save" do
    context "when default_tax is true" do
      it "should clear previous default tax zone" do
        zone1 = create(:zone, name: 'foo', default_tax: true)
        zone = create(:zone, name: 'bar', default_tax: true)
        expect(zone1.reload.default_tax).to be_falsy
      end
    end

    context "when a zone member country is added to an existing zone consisting of state members" do
      it "should remove existing state members" do
        zone = create(:zone, name: 'foo', zone_members: [])
        state = create(:state)
        country = create(:country)
        zone.members.create(zoneable: state)
        country_member = zone.members.create(zoneable: country)
        zone.save
        expect(zone.reload.members).to eq [country_member]
      end
    end
  end

  context "#kind" do
    context "when the zone consists of country zone members" do
      before do
        @zone = create(:zone, name: 'country', zone_members: [])
        @zone.members.create(zoneable: create(:country))
      end

      it "should return the kind of zone member" do
        expect(@zone.kind).to eq "country"
      end
    end

    context "when the zone consists of state zone members" do
      before do
        @zone = create(:zone, name: 'state', zone_members: [])
        @zone.members.create(zoneable: create(:state))
      end

      it "should return the kind of zone member" do
        expect(@zone.kind).to eq "state"
      end
    end
  end
end