change tests to use assert_select

app/controllers/finance/ordergroups_controller.rb

@@ -14,7 +14,7 @@ class Finance::OrdergroupsController < Finance::BaseController
     @ordergroups = @ordergroups.page(params[:page]).per(@per_page)
 
     @total_balances = FinancialTransactionClass.sorted.each_with_object({}) do |c, tmp|
-      tmp[c.id] = c.financial_transactions.reduce(0) { | sum, t | sum + t.amount }
+      tmp[c.id] = c.financial_transactions.reduce(0) { |sum, t| sum + t.amount }
     end
   end
 end

app/views/finance/ordergroups/_ordergroups.html.haml

@@ -28,6 +28,6 @@
       %th
       - FinancialTransactionClass.sorted.each do |c|
         - name = FinancialTransactionClass.has_multiple_classes ? c.display : heading_helper(Ordergroup, :account_balance)
-        %th.numeric= format_currency @total_balances[c.id]
-      %th.numeric
+        %th.numeric{:id => "total_balance#{c.id}"}= format_currency @total_balances[c.id]
+      %th.numeric#total_balance_sum
         = format_currency @total_balances.values.reduce(:+)

spec/controllers/finance/ordergroups_controller_spec.rb

@@ -3,24 +3,30 @@
 require 'spec_helper'
 
 describe Finance::OrdergroupsController do
+  include ActionView::Helpers::NumberHelper
+  render_views
+
   let(:user) { create(:user, :role_finance, :role_orders, :ordergroup) }
   let(:fin_trans_type1) { create(:financial_transaction_type) }
   let(:fin_trans_type2) { create(:financial_transaction_type) }
   let(:fin_trans1) do
     create(:financial_transaction,
            user: user,
+           amount: 100,
            ordergroup: user.ordergroup,
            financial_transaction_type: fin_trans_type1)
   end
   let(:fin_trans2) do
     create(:financial_transaction,
            user: user,
+           amount: 200,
            ordergroup: user.ordergroup,
            financial_transaction_type: fin_trans_type1)
   end
   let(:fin_trans3) do
     create(:financial_transaction,
            user: user,
+           amount: 42.23,
            ordergroup: user.ordergroup,
            financial_transaction_type: fin_trans_type2)
   end
@@ -37,14 +43,15 @@ describe Finance::OrdergroupsController do
     it 'renders index page' do
       get_with_defaults :index
       expect(response).to have_http_status(:success)
-      expect(response).to render_template('finance/ordergroups/index')
     end
 
     it 'calculates total balance sums correctly' do
       get_with_defaults :index
-      expect(assigns(:total_balances).size).to eq(2)
-      expect(assigns(:total_balances)[fin_trans_type1.id]).to eq(fin_trans1.amount + fin_trans2.amount)
-      expect(assigns(:total_balances)[fin_trans_type2.id]).to eq(fin_trans3.amount)
+      expect(response).to have_http_status(:success)
+
+      assert_select "#total_balance#{fin_trans_type1.id}", number_to_currency(300)
+      assert_select "#total_balance#{fin_trans_type2.id}", number_to_currency(42.23)
+      assert_select '#total_balance_sum', number_to_currency(342.23)
     end
   end
 end