Allow 10% overage for true-ups when uploading a license

The 10% overage when uploading a license was only applied to the users
in the license but not true-ups. Now, true-ups will also use a 10%
overage.

Changelog: changed
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/67508
EE: true

ee/app/models/license.rb

@@ -685,7 +685,7 @@ class License < ApplicationRecord
                             max_historical - daily_billable_users_count
                           end
 
-    if trueup_qty >= expected_trueup_qty
+    if trueup_quantity_with_threshold >= expected_trueup_qty
       check_restricted_user_count
     else
       message = ["You have applied a True-up for #{trueup_qty} #{"user".pluralize(trueup_qty)}"]
@@ -696,8 +696,12 @@ class License < ApplicationRecord
     end
   end
 
+  def trueup_quantity_with_threshold
+    (restrictions[:trueup_quantity] * (1 + ALLOWED_PERCENTAGE_OF_USERS_OVERAGE)).to_i
+  end
+
   def check_restricted_user_count
-    return unless restricted_user_count && restricted_user_count < daily_billable_users_count
+    return unless restricted_user_count && restricted_user_count_with_threshold < daily_billable_users_count
 
     add_limit_error(user_count: daily_billable_users_count)
   end

ee/spec/models/license_spec.rb

@@ -60,25 +60,41 @@ RSpec.describe License do
         end
       end
 
-      context 'when quantity is ok' do
+      context 'when quantity with threshold is more than the required quantity' do
         before do
-          set_restrictions(restricted_user_count: 5, trueup_quantity: 10)
+          set_restrictions(restricted_user_count: 10, trueup_quantity: 10)
         end
 
         it { is_expected.to be_valid }
 
-        context 'but active users exceeds restricted user count' do
+        context 'but active users with threshold exceeds restricted user count' do
           before do
-            create_list(:user, 6)
+            create_list(:user, 12)
           end
 
           it { is_expected.not_to be_valid }
         end
       end
 
-      context 'when quantity is wrong' do
+      context 'when quantity with threshold is equal to the required quantity' do
         before do
-          set_restrictions(restricted_user_count: 5, trueup_quantity: 8)
+          set_restrictions(restricted_user_count: 10, trueup_quantity: 11)
+        end
+
+        it { is_expected.to be_valid }
+
+        context 'but active users with threshold exceeds restricted user count' do
+          before do
+            create_list(:user, 12)
+          end
+
+          it { is_expected.not_to be_valid }
+        end
+      end
+
+      context 'when quantity with threshold is less than the required quantity' do
+        before do
+          set_restrictions(restricted_user_count: 10, trueup_quantity: 8)
         end
 
         it { is_expected.not_to be_valid }
@@ -115,26 +131,32 @@ RSpec.describe License do
 
     describe '#check_restricted_user_count' do
       context 'when reconciliation_completed is true' do
-        context 'when restricted_user_count is equal or more than active_user_count' do
         before do
           set_restrictions(restricted_user_count: 10, reconciliation_completed: true)
+          create_list(:user, user_count)
+          create(:historical_data, recorded_at: described_class.current.starts_at, active_user_count: 100)
         end
 
+        context 'when restricted_user_count with threshold is more than active_user_count' do
+          let(:user_count) { 10 }
+
           it { is_expected.to be_valid }
         end
 
-        context 'when the restricted_user_count is less than active_user_count' do
-          before do
-            set_restrictions(restricted_user_count: 2, reconciliation_completed: true)
-            create_list(:user, 6)
-            create(:historical_data, recorded_at: described_class.current.starts_at, active_user_count: 100)
+        context 'when restricted_user_count with threshold is equal than active_user_count' do
+          let(:user_count) { 11 }
+
+          it { is_expected.to be_valid }
         end
 
+        context 'when the restricted_user_count with threshold is less than active_user_count' do
+          let(:user_count) { 12 }
+
           it 'add limit error' do
             expect(license.valid?).to be_falsey
 
             expect(license.errors.full_messages.to_sentence).to include(
-              'This GitLab installation currently has 6 active users, exceeding this license\'s limit of 2 by 4 users'
+              'This GitLab installation currently has 12 active users, exceeding this license\'s limit of 10 by 2 users'
             )
             expect(license.errors.full_messages.to_sentence).not_to include(
               'During the year before this license started'
@@ -144,10 +166,10 @@ RSpec.describe License do
       end
 
       context 'when reconciliation_completed is false' do
-        context 'when the restricted_user_count is less than active_user_count' do
+        context 'when the restricted_user_count with threshold is less than active_user_count' do
           before do
-            set_restrictions(restricted_user_count: 2, reconciliation_completed: false)
-            create_list(:user, 6)
+            set_restrictions(restricted_user_count: 10, reconciliation_completed: false)
+            create_list(:user, 12)
             create(:historical_data, recorded_at: described_class.current.starts_at, active_user_count: 100)
           end