Expand authority tests for GDS Editors and Admins

GDS Editors and Admins were already able to perform any action on historical content.

This changes expands the tests for these users to more fully cover these permissions.

Author: davidsauntson

test/unit/lib/whitehall/authority/gds_admin_test.rb

@@ -35,8 +35,10 @@ def non_gds_admin(id = 2)
     assert enforcer_for(gds_admin, normal_edition).can?(:mark_political)
   end
 
-  test "can modify historic editions" do
-    assert enforcer_for(gds_admin, historic_edition).can?(:update)
+  test "can do anything to historic editions" do
+    Whitehall::Authority::Rules::EditionRules.actions.each do |action|
+      assert enforcer_for(gds_admin, historic_edition).can?(action)
+    end
   end
 
   test "can create social media accounts" do

test/unit/lib/whitehall/authority/gds_editor_test.rb

@@ -157,8 +157,10 @@ def gds_editor(id = 1)
     assert enforcer_for(gds_editor, normal_edition).can?(:mark_political)
   end
 
-  test "can modify historic editions" do
-    assert enforcer_for(gds_editor, historic_edition).can?(:update)
+  test "can do anything to historic editions" do
+    Whitehall::Authority::Rules::EditionRules.actions.each do |action|
+      assert enforcer_for(gds_editor, historic_edition).can?(action)
+    end
   end
 
   test "can create social media accounts" do