Add Atom tests

spec/system/travel_advice_atom_spec.rb

@@ -40,4 +40,29 @@
       expect(page).to have_xpath(".//feed/entry", count: 20)
     end
   end
+
+  context "individual country feed" do
+    it "displays a country as an atom feed" do
+      content_store_response = GovukSchemas::Example.find("travel_advice", example_name: "full-country")
+      base_path = content_store_response.fetch("base_path")
+      stub_content_store_has_item(base_path, content_store_response)
+
+      visit "#{base_path}.atom"
+
+      expect(page.status_code).to eq(200)
+      expect(page).to have_xpath(".//feed/id", text: "http://www.dev.gov.uk#{base_path}")
+      expect(page).to have_xpath(".//feed/title", text: "Travel Advice Summary")
+      expect(page).to have_xpath(".//feed/updated", text: "2017-02-14T15:42:21+00:00")
+      expect(page).to have_xpath(".//feed/link[@rel='self' and @href='http://www.example.com#{base_path}.atom']")
+      expect(page).to have_xpath(".//feed/link[@rel='alternate' and @type='text/html' and @href='http://www.dev.gov.uk#{base_path}']")
+      expect(page).to have_xpath(".//feed/author/name", text: "GOV.UK")
+      expect(page).to have_xpath(".//feed/entry", count: 1)
+      expect(page).to have_xpath(".//feed/entry[1]/id", text: "http://www.dev.gov.uk#{base_path}##{Time.zone.parse(content_store_response['public_updated_at'])}")
+      expect(page).to have_xpath(".//feed/entry[1]/title", text: (content_store_response["title"]).to_s)
+      expect(page).to have_xpath(".//feed/entry[1]/updated", text: "2017-02-14T15:42:21+00:00")
+      expect(page).to have_xpath(".//feed/entry[1]/link[@type='text/html' and @href='http://www.dev.gov.uk#{base_path}']")
+      expect(page).to have_xpath(".//feed/entry[1]/link[@type='application/atom+xml' and @href='http://www.dev.gov.uk#{base_path}.atom']")
+      expect(page).to have_xpath(".//feed/entry[1]/summary[@type='xhtml']/div/p", text: (content_store_response["change_description"]).to_s)
+    end
+  end
 end