Controllers uses CreatesInterestedPartiesCSV class for CSV

app/controllers/status_controller.rb

@@ -1,10 +1,14 @@
 class StatusController < ApplicationController
   def index
-    @total_addresses_collected = InterestedParty.total_collected
+
 
     respond_to do |format|
-      format.html
-      format.csv { send_data "email_address", type: "text/csv", filename: "foo.csv", }
+      format.html do
+        @total_addresses_collected = InterestedParty.total_collected
+      end
+      format.csv do
+        send_data LaunchApp::CreatesInterestedPartiesCSV.for_all, type: "text/csv", filename: "foo.csv"
+      end
     end
   end
 end

app/launch_app/creates_interested_parties_csv.rb

@@ -0,0 +1,5 @@
+module LaunchApp
+  class CreatesInterestedPartiesCSV
+  end
+end
+

features/status_results/downloading_interested_party_details.feature

@@ -8,3 +8,9 @@ Feature: Downloading details about interested parties
     When I download the interested party details as csv
     Then I should have an empty csv
 
+
+  Scenario: Somebody is interested
+    Given somebody has given me their email address
+    When I download the interested party details as csv
+    Then I should see the interested parties csv
+

features/step_definitions/status_page_steps.rb

@@ -26,3 +26,10 @@
   actual_lines.should == ["email_address"]
 end
 
+Then /^I should see the interested parties csv$/ do
+  page.response_headers['Content-Type'].should == "text/csv"
+  actual_lines = page.text.split("\n")
+  actual_lines.length.should == 2
+  actual_lines.should == ["email_address", InterestedParty.last.email_address]
+end
+

spec/controllers/status_controller_spec.rb

@@ -10,11 +10,20 @@
     end
 
     context "as a csv file" do
+      before do
+        LaunchApp::CreatesInterestedPartiesCSV.stub(:for_all)
+      end
       it "supports it" do
         get :index, format: :csv
         response.should be_success
         response.content_type.should == 'text/csv'
       end
+
+      it "includes the email addresses collected" do
+        LaunchApp::CreatesInterestedPartiesCSV.stub(:for_all) { "this is the csv" }
+        get :index, format: :csv
+        response.body.should == "this is the csv"
+      end
     end
   end
 end