add specs

spec/models/ordergroup_invoice_spec.rb

@@ -0,0 +1,60 @@
+require_relative '../spec_helper'
+
+describe OrdergroupInvoice do
+  # TODO: DO REAL TESTING!
+  let(:user) { create :user, groups: [create(:ordergroup)] }
+  let(:supplier) { create :supplier }
+  let(:article) { create :article, supplier: supplier }
+  let(:order) { create :order, state: 'closed' }
+  let(:group_order) { create :group_order, order: order, ordergroup: user.ordergroup }
+  let(:multi_group_order) { create :multi_group_order, multi_order: create(:multi_order, orders: [order]) }
+  
+  describe 'erroneous group order invoice' do
+    before do
+      order.update!(state: 'closed')
+    end
+    let(:ogi) do
+      build(:ordergroup_invoice, multi_group_order: multi_group_order).tap(&:init)
+    end    
+    it 'does not create group order invoice if tax_number not set' do
+      expect { ogi }.to raise_error(ActiveRecord::RecordInvalid, /.*/)
+    end
+  end
+
+  describe 'valid group order invoice' do
+    before do
+      FoodsoftConfig[:contact][:tax_number] = 123_457_8
+      order.update!(state: 'closed')
+    end
+    let(:multi_group_order1) { create :multi_group_order, multi_order: create(:multi_order, orders: [order]) }
+    let(:ogi) do
+      build(:ordergroup_invoice, multi_group_order: multi_group_order1).tap(&:init)
+    end
+    invoice_number1 = Time.now.strftime("%Y%m%d") + '0001'
+    invoice_number2 = Time.now.strftime("%Y%m%d") + '0002'
+
+    it 'creates group order invoice if tax_number is set' do
+      expect(ogi).to be_valid
+    end
+
+    it 'sets invoice_number according to date' do
+      number = Time.now.strftime("%Y%m%d") + '0001'
+      expect(odi1.invoice_number).to eq(number.to_i)
+    end
+
+    it 'fails to create if group_order_id is used multiple times for creation' do
+      expect(odi1.group_order.id).to eq(group_order.id)
+      expect { odi2 }.to raise_error(ActiveRecord::RecordInvalid)
+    end
+
+    it 'creates two different group order invoice with different invoice_numbers' do
+      expect(odi1.invoice_number).to eq(invoice_number1.to_i)
+      expect(goi3.invoice_number).to eq(invoice_number2.to_i)
+    end
+
+    it 'fails to create two different group order invoice with same invoice_numbers' do
+      odi1
+      expect { goi4 }.to raise_error(ActiveRecord::RecordInvalid)
+    end
+  end
+end