Fixed broken test

Author: oscarwyatt

test/presenters/content_item/links_out_test.rb

@@ -223,13 +223,22 @@ def content_item
     assert_equal %w(link_to_news), @links_out.links_out_subgroups("news_and_communications")
   end
 
+  test 'links_out_subgroups returns no subgroup names if content_purpose_subgroup is not a subgroup of the supergroup' do
+    amended_rules = rules
+    amended_rules["content_purpose_subgroup"]["guidance"] << news_rule
+    amended_rules["document_type"] = nil
+
+    stub_load_rules(amended_rules)
+    assert_equal [], @links_out.links_out_subgroups("guidance_and_regulation")
+  end
+
   test 'links_out_subgroups returns correct subgroup names for content_purpose_subgroup rules' do
     amended_rules = rules
     amended_rules["content_purpose_subgroup"]["guidance"] << news_rule
     amended_rules["document_type"] = nil
 
     stub_load_rules(amended_rules)
-    assert_equal %w(link_to_guidance), @links_out.links_out_subgroups("guidance_and_regulation")
+    assert_equal %w(link_to_news), @links_out.links_out_subgroups("news_and_communications")
   end
 
   test 'links_out_subgroups returns correct subgroup names for document_type rules' do