add group_order_article spec

spec/factories/group_order_article.rb

@@ -0,0 +1,9 @@
+require 'factory_girl'
+
+FactoryGirl.define do
+
+  # requires order_article
+  factory :group_order_article do
+  end
+
+end

spec/models/group_order_article_spec.rb

@@ -0,0 +1,62 @@
+require 'spec_helper'
+
+describe GroupOrderArticle do
+  let(:user) { FactoryGirl.create :user, groups: [FactoryGirl.create(:ordergroup)] }
+  let(:supplier) { FactoryGirl.create :supplier, article_count: true }
+  let(:order) { FactoryGirl.create(:order, supplier: supplier, article_ids: supplier.articles.map(&:id)).reload }
+  let(:go) { FactoryGirl.create :group_order, order: order, ordergroup: user.ordergroup }
+  let(:goa) { FactoryGirl.create :group_order_article, group_order: go, order_article: order.order_articles.first }
+
+  it 'has zero quantity by default'    do goa.quantity.should == 0 end
+  it 'has zero tolerance by default'   do goa.tolerance.should == 0 end
+  it 'has zero result by default'      do goa.result.should == 0 end
+  it 'is not ordered by default'       do GroupOrderArticle.ordered.where(:id => goa.id).exists?.should be_false end
+  it 'has zero total price by default' do goa.total_price.should == 0 end
+
+  describe do
+    let(:article) { FactoryGirl.create :article, supplier: supplier, unit_quantity: 1 }
+    let(:goa) { article; FactoryGirl.create :group_order_article, group_order: go, order_article: order.order_articles.find_by_article_id(article.id) }
+
+    it 'can be ordered by piece' do
+      goa.update_quantities(1, 0)
+      goa.quantity.should == 1
+      goa.tolerance == 0
+    end
+
+    it 'can be ordered in larger amounts' do
+      quantity, tolerance = rand(13..100), rand(0..100)
+      goa.update_quantities(quantity, tolerance)
+      goa.quantity.should == quantity
+      goa.tolerance.should == tolerance
+    end
+
+    it 'has a proper total price' do
+      quantity = rand(1..100)
+      goa.update_quantities(quantity, 0)
+      goa.total_price.should == quantity * goa.order_article.price.fc_price
+    end
+
+    it 'can unorder a product' do
+      goa.update_quantities(rand(1..100), rand(0..100))
+      goa.update_quantities(0, 0)
+      goa.quantity.should == 0
+      goa.tolerance.should == 0
+    end
+
+    it 'keeps track of article quantities' do
+      startq = startt = nil
+      for i in 0..6 do
+        goa.group_order_article_quantities.count == i
+        quantity, tolerance = rand(1..100), rand(0..100)
+        goa.update_quantities(quantity, tolerance)
+        startq.nil? and startq = quantity
+        startt.nil? and startt = tolerance
+      end
+      goaq = goa.group_order_article_quantities.last
+      goaq.quantity.should == startq
+      goaq.tolerance.should == startt
+    end
+
+  end
+
+end