Hide how-to-upgrade link if ultimate plan

- no need to show how-to-upgrade link if
  we are already on the highest possible.

ee/app/models/license.rb

@@ -439,10 +439,12 @@ class License < ApplicationRecord
     restricted_attr(:trial)
   end
 
-  def exclude_guests_from_active_count?
+  def ultimate?
     plan == License::ULTIMATE_PLAN
   end
 
+  alias_method :exclude_guests_from_active_count?, :ultimate?
+
   def remaining_days
     return 0 if expired?
 

ee/app/views/admin/licenses/_info.html.haml

@@ -16,12 +16,13 @@
         %li
           %span.light= _('Plan:')
           %strong= @license.plan.capitalize
-          = ' - '
-          = link_to _('How to upgrade'),
-            help_page_path('subscriptions/index.md', anchor: 'upgrade-your-self-managed-subscription-tier'),
-            class: 'inline-link',
-            target: :_blank,
-            rel: :noreferrer
+          - unless @license.ultimate?
+            = ' - '
+            = link_to _('How to upgrade'),
+              help_page_path('subscriptions/index.md', anchor: 'upgrade-your-self-managed-subscription-tier'),
+              class: 'inline-link',
+              target: :_blank,
+              rel: :noreferrer
         %li
           %span.light= _('Uploaded:')
           %strong= time_ago_with_tooltip @license.created_at

ee/changelogs/unreleased/238191-hide-the-upgrade-link-on-the-admin-license-page-if-the-current-.yml

+---
+title: Hide the upgrade link on the admin license page if plan Ultimate
+merge_request: 40977
+author:
+type: changed

ee/spec/models/license_spec.rb

@@ -767,6 +767,26 @@ RSpec.describe License do
     end
   end
 
+  describe '#ultimate?' do
+    using RSpec::Parameterized::TableSyntax
+
+    let(:license) { build(:license, plan: plan) }
+
+    subject { license.ultimate? }
+
+    where(:plan, :expected) do
+      nil | false
+      described_class::STARTER_PLAN | false
+      described_class::PREMIUM_PLAN | false
+      described_class::EARLY_ADOPTER_PLAN | false
+      described_class::ULTIMATE_PLAN | true
+    end
+
+    with_them do
+      it { is_expected.to eq(expected) }
+    end
+  end
+
   describe 'Trial Licenses' do
     before do
       ApplicationSetting.create_from_defaults

ee/spec/views/admin/licenses/_info.html.haml_spec.rb

@@ -3,18 +3,31 @@
 require 'spec_helper'
 
 RSpec.describe 'admin/licenses/_info' do
-  let_it_be(:license) { create(:license) }
+  context 'when observing the license' do
+    before do
+      assign(:license, license)
+    end
 
-  before do
-    assign(:license, license)
-  end
+    context 'when plan can be upgraded' do
+      let(:license) { create(:license, plan: License::STARTER_PLAN) }
+
+      it 'shows "How to upgrade" link' do
+        render
+
+        expect(rendered).to have_content('Plan: Starter - How to upgrade')
+        expect(rendered).to have_link('How to upgrade')
+      end
+    end
+
+    context 'when plan can not be upgraded' do
+      let(:license) { create(:license, plan: License::ULTIMATE_PLAN) }
 
-  context 'when observing licensees' do
-    it 'shows "How to upgrade" link' do
-      render
+      it 'does not show "How to upgrade" link' do
+        render
 
-      expect(rendered).to have_content('Plan: Starter - How to upgrade')
-      expect(rendered).to have_link('How to upgrade')
+        expect(rendered).to have_content('Plan: Ultimate')
+        expect(rendered).not_to have_link('How to upgrade')
+      end
     end
   end
 end