Turn off custom schemas at voting closing time

The polls close at 10:00pm, so we should turn the hardcoded schema off at
that time.

Updates to the content are scheduled to be published at that time too, so
the cache will be cleared by our standard processes.

Author: sihugh

Gemfile

@@ -39,6 +39,7 @@ group :test do
   gem "minitest-reporters"
   gem "mocha"
   gem "simplecov"
+  gem "timecop"
   gem "webdrivers"
   gem "webmock", require: false
 end

Gemfile.lock

@@ -326,6 +326,7 @@ GEM
     thor (1.1.0)
     thread_safe (0.3.6)
     tilt (2.0.10)
+    timecop (0.9.4)
     tzinfo (1.2.9)
       thread_safe (~> 0.1)
     uglifier (4.2.0)
@@ -395,6 +396,7 @@ DEPENDENCIES
   sassc-rails
   simplecov
   slimmer
+  timecop
   uglifier
   webdrivers
   webmock

app/presenters/content_item_presenter.rb

@@ -88,11 +88,16 @@ def show_phase_banner?
 
   def render_guide_as_single_page?
     # /how-to-vote
-    content_id == "9315bc67-33e7-42e9-8dea-e022f56dabfa"
+    content_id == "9315bc67-33e7-42e9-8dea-e022f56dabfa" && voting_is_open?
   end
 
 private
 
+  def voting_is_open?
+    polls_closing_time = Time.zone.parse("2021-05-06 22:00:00")
+    Time.zone.now < polls_closing_time
+  end
+
   def display_date(timestamp, format = "%-d %B %Y")
     I18n.l(Time.zone.parse(timestamp), format: format, locale: "en") if timestamp
   end

test/integration/guide_test.rb

@@ -113,28 +113,69 @@ class GuideTest < ActionDispatch::IntegrationTest
   end
 
   # The schema config is in /config/machine_readable/how-to-vote.yml
-  test "voting in the UK guide shows hard coded FAQ schema" do
-    setup_and_visit_voting_guide
+  test "voting in the UK guide shows hard coded FAQ schema until voting closes" do
+    when_voting_is_open do
+      setup_and_visit_voting_guide
 
-    faq_schema = find_structured_data(page, "FAQPage")
-    q_and_as = faq_schema["mainEntity"]
+      faq_schema = find_structured_data(page, "FAQPage")
+      q_and_as = faq_schema["mainEntity"]
 
-    assert_equal faq_schema["@type"], "FAQPage"
-    assert_equal faq_schema["headline"], "How to vote"
-    assert_equal faq_schema["description"], "<p>You need to <a href=\"/register-to-vote?src=schema\">register to vote</a> before you can vote in UK elections or referendums.</p> <p>If you’re eligible, you can vote in person on the day of the election at a named polling station. You can also apply for a postal or proxy vote instead.</p> <p>There are elections and referendums in England, Scotland and Wales on 6 May 2021.</p>\n"
+      assert_equal faq_schema["@type"], "FAQPage"
+      assert_equal faq_schema["headline"], "How to vote"
+      assert_equal faq_schema["description"], "<p>You need to <a href=\"/register-to-vote?src=schema\">register to vote</a> before you can vote in UK elections or referendums.</p> <p>If you’re eligible, you can vote in person on the day of the election at a named polling station. You can also apply for a postal or proxy vote instead.</p> <p>There are elections and referendums in England, Scotland and Wales on 6 May 2021.</p>\n"
+
+      assert_equal 10, q_and_as.count
+    end
+  end
+
+  test "voting in the UK guide shows all chapters on a single page until voting closes" do
+    when_voting_is_open do
+      content_item = setup_and_visit_voting_guide
+      part_titles = content_item["details"]["parts"].map { |part| part["title"] }
+
+      part_titles.each do |part_title|
+        assert page.has_css? "h1", text: part_title
+      end
+    end
+  end
+
+  test "voting in the UK guide shows autogenerated schemas after voting closes" do
+    once_voting_has_closed do
+      setup_and_visit_voting_guide
+
+      faq_schema = find_structured_data(page, "FAQPage")
 
-    assert_equal 10, q_and_as.count
+      assert_equal faq_schema["@type"], "FAQPage"
+      assert_equal faq_schema["headline"], "The national curriculum" # the fake guide used in tests
+    end
   end
 
-  test "voting in the UK guide shows all chapters on a single page" do
-    content_item = setup_and_visit_voting_guide
-    part_titles = content_item["details"]["parts"].map { |part| part["title"] }
+  test "voting in the UK guide shows chapters on separate pages after voting closes" do
+    once_voting_has_closed do
+      content_item = setup_and_visit_voting_guide
+
+      first_part = content_item["details"]["parts"].first
+      assert_selector "h1", text: first_part["title"]
 
-    part_titles.each do |part_title|
-      assert page.has_css? "h1", text: part_title
+      part_titles = content_item["details"]["parts"].drop(1).map { |part| part["title"] }
+      part_titles.each do |part_title|
+        assert_no_selector "h1", text: part_title
+      end
     end
   end
 
+  def once_voting_has_closed
+    Timecop.freeze(Time.zone.local(2021, 5, 6, 22, 0, 0))
+    yield
+    Timecop.return
+  end
+
+  def when_voting_is_open
+    Timecop.freeze(Time.zone.local(2021, 5, 6, 21, 59, 0))
+    yield
+    Timecop.return
+  end
+
   def setup_and_visit_voting_guide
     @content_item = get_content_example("guide").tap do |item|
       item["base_path"] = "/how-to-vote"