Exclude closed organisations from the organisation select

We don't want to assign users to closed organisations so it doesn't
make sense to include them in the select list.

app/helpers/role_organisations_helper.rb

@@ -1,6 +1,6 @@
 module RoleOrganisationsHelper
   def options_for_organisation_select(current_user)
-    organisations = Pundit.policy_scope(current_user, Organisation).order(:name)
+    organisations = Pundit.policy_scope(current_user, Organisation).order(:name).where(closed: false)
 
     organisations.map do |organisation|
       { text: organisation.name_with_abbreviation,

test/helpers/role_organisations_helper_test.rb

@@ -5,6 +5,7 @@ class RoleOrganisationsHelperTest < ActionView::TestCase
     setup do
       @user_organisation = create(:organisation, name: "User Organisation", abbreviation: "UO")
       @other_organisation = create(:organisation, name: "Other Organisation")
+      @closed_organisation = create(:organisation, name: "Closed Organisation", closed: true)
       @user = create(:admin_user, organisation: @user_organisation)
     end
 
@@ -34,5 +35,11 @@ class RoleOrganisationsHelperTest < ActionView::TestCase
         options.map { |o| o[:text] },
       )
     end
+
+    should "not include closed organisations" do
+      closed_organisation_option = options_for_organisation_select(@user).detect { |o| o[:value] == @closed_organisation.id }
+
+      assert_not closed_organisation_option
+    end
   end
 end