Add optional boxfill phase to orders

spec/models/order_article_spec.rb

@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe OrderArticle do
-  let(:order) { FactoryGirl.create :order, article_count: 1 }
+  let(:order) { create :order, article_count: 1 }
   let(:oa) { order.order_articles.first }
 
   it 'is not ordered by default' do
@@ -19,7 +19,7 @@ describe OrderArticle do
 
   it 'knows how many items there are' do
     oa.units_to_order = rand(1..99)
-    expect(oa.units).to eq oa.units_to_order 
+    expect(oa.units).to eq oa.units_to_order
     oa.units_billed = rand(1..99)
     expect(oa.units).to eq oa.units_billed
     oa.units_received = rand(1..99)
@@ -34,15 +34,15 @@ describe OrderArticle do
   end
 
   describe 'redistribution' do
-    let(:admin) { FactoryGirl.create :user, groups:[FactoryGirl.create(:workgroup, role_finance: true)] }
-    let(:article) { FactoryGirl.create :article, unit_quantity: 3 }
-    let(:order) { FactoryGirl.create :order, article_ids: [article.id] }
-    let(:go1) { FactoryGirl.create :group_order, order: order }
-    let(:go2) { FactoryGirl.create :group_order, order: order }
-    let(:go3) { FactoryGirl.create :group_order, order: order }
-    let(:goa1) { FactoryGirl.create :group_order_article, group_order: go1, order_article: oa }
-    let(:goa2) { FactoryGirl.create :group_order_article, group_order: go2, order_article: oa }
-    let(:goa3) { FactoryGirl.create :group_order_article, group_order: go3, order_article: oa }
+    let(:admin) { create :user, groups:[create(:workgroup, role_finance: true)] }
+    let(:article) { create :article, unit_quantity: 3 }
+    let(:order) { create :order, article_ids: [article.id] }
+    let(:go1) { create :group_order, order: order }
+    let(:go2) { create :group_order, order: order }
+    let(:go3) { create :group_order, order: order }
+    let(:goa1) { create :group_order_article, group_order: go1, order_article: oa }
+    let(:goa2) { create :group_order_article, group_order: go2, order_article: oa }
+    let(:goa3) { create :group_order_article, group_order: go3, order_article: oa }
 
     # set quantities of group_order_articles
     def set_quantities(q1, q2, q3)
@@ -117,4 +117,80 @@ describe OrderArticle do
 
   end
 
+  describe 'boxfill' do
+    before { FoodsoftConfig[:use_boxfill] = true }
+    let(:article) { create :article, unit_quantity: 6 }
+    let(:order) { create :order, article_ids: [article.id], starts: 1.week.ago }
+    let(:oa) { order.order_articles.first }
+    let(:go) { create :group_order, order: order }
+    let(:goa) { create :group_order_article, group_order: go, order_article: oa }
+
+    shared_examples "boxfill" do |success, q|
+      # initial situation
+      before do
+        goa.update_quantities *q.keys[0]
+        oa.update_results!; oa.reload
+      end
+
+      # check starting condition
+      it '(before)' do
+        expect([oa.quantity, oa.tolerance, oa.missing_units]).to eq q.keys[1]
+      end
+
+      # actual test
+      it (success ? 'succeeds' : 'fails') do
+        order.update_attributes(boxfill: boxfill_from)
+
+        r = proc {
+          goa.update_quantities *q.values[0]
+          oa.update_results!
+        }
+        if success
+          r.call
+        else
+          expect(r).to raise_error(ActiveRecord::RecordNotSaved)
+        end
+
+        oa.reload
+        expect([oa.quantity, oa.tolerance, oa.missing_units]).to eq q.values[1]
+      end
+    end
+
+    context 'before the date' do
+      let(:boxfill_from) { 1.hour.from_now }
+      context 'decreasing the missing units' do
+        include_examples "boxfill", true, [6,0]=>[5,0], [6,0,0]=>[5,0,1]
+      end
+      context 'decreasing the tolerance' do
+        include_examples "boxfill", true, [1,2]=>[1,1], [1,2,3]=>[1,1,4]
+      end
+    end
+
+    context 'after the date' do
+      let(:boxfill_from) { 1.second.ago }
+      context 'changing nothing in particular' do
+        include_examples "boxfill", true, [4,1]=>[4,1], [4,1,1]=>[4,1,1]
+      end
+      context 'increasing missing units' do
+        include_examples "boxfill", false, [3,0]=>[2,0], [3,0,3]=>[3,0,3]
+      end
+      context 'increasing tolerance' do
+        include_examples "boxfill", true, [2,1]=>[2,2], [2,1,3]=>[2,2,2]
+      end
+      context 'decreasing quantity to fix missing units' do
+        include_examples "boxfill", true, [7,0]=>[6,0], [7,0,5]=>[6,0,0]
+      end
+      context 'decreasing quantity keeping missing units equal' do
+        include_examples "boxfill", false, [7,0]=>[1,0], [7,0,5]=>[7,0,5]
+      end
+      context 'moving tolerance to quantity' do
+        include_examples "boxfill", true, [4,2]=>[6,0], [4,2,0]=>[6,0,0]
+      end
+      # @todo enable test when tolerance doesn't count in missing_units
+      #context 'decreasing tolerance' do
+      #  include_examples "boxfill", false, [0,2]=>[0,0], [0,2,0]=>[0,2,0]
+      #end
+    end
+  end
+
 end