Omit sub-groups from trial eligibility

ee/app/models/ee/namespace.rb

@@ -40,6 +40,7 @@ module EE
       scope :eligible_for_trial, -> do
         left_joins(gitlab_subscription: :hosted_plan)
           .where(
+            parent_id: nil,
             gitlab_subscriptions: { trial: [nil, false], trial_ends_on: [nil] },
             plans: { name: [nil, *::Plan::PLANS_ELIGIBLE_FOR_TRIAL] }
           )

ee/changelogs/unreleased/228781-stop-subgroups-from-being-able-to-create-trials.yml

+---
+title: Omit sub-groups from trial selection menu
+merge_request: 40300
+author:
+type: fixed

ee/spec/helpers/ee/trial_helper_spec.rb

@@ -64,7 +64,7 @@ RSpec.describe EE::TrialHelper do
       let_it_be(:subgroup2) { create :group, parent: group2, name: 'Sub-Group 2' }
       let_it_be(:subsubgroup1) { create :group, parent: subgroup2, name: 'Sub-Sub-Group 1' }
 
-      let(:all_groups) { [group1, group2, subgroup1, subgroup2, subsubgroup1].map(&:id) }
+      let(:top_level_groups) { [group1, group2].map(&:id) }
 
       before do
         group1.add_owner(user)
@@ -72,7 +72,7 @@ RSpec.describe EE::TrialHelper do
       end
 
       context 'and none of the groups have subscriptions' do
-        it { is_expected.to eq(all_groups) }
+        it { is_expected.to eq(top_level_groups) }
       end
 
       context 'and the groups have subscriptions' do
@@ -89,7 +89,7 @@ RSpec.describe EE::TrialHelper do
         let!(:subscription_subsubgroup1) { create :gitlab_subscription, :free, *subsubgroup1_traits, namespace: subsubgroup1 }
 
         context 'and none of the groups have been trialed yet' do
-          it { is_expected.to eq(all_groups) }
+          it { is_expected.to eq(top_level_groups) }
         end
 
         context 'and some of the groups are being or have been trialed' do
@@ -97,9 +97,7 @@ RSpec.describe EE::TrialHelper do
           let(:subgroup1_traits) { :expired_trial }
           let(:subgroup2_traits) { :active_trial }
 
-          let(:some_groups) { [group2, subsubgroup1].map(&:id) }
-
-          it { is_expected.to eq(some_groups) }
+          it { is_expected.to eq([group2.id]) }
         end
 
         context 'and all of the groups are being or have been trialed' do

ee/spec/models/user_spec.rb

@@ -1058,6 +1058,7 @@ RSpec.describe User do
     let_it_be(:non_trialed_group_z) { create :group, name: 'Zeta', gitlab_subscription: create(:gitlab_subscription, :free) }
     let_it_be(:non_trialed_group_a) { create :group, name: 'Alpha', gitlab_subscription: create(:gitlab_subscription, :free) }
     let_it_be(:trialed_group) { create :group, name: 'Omitted', gitlab_subscription: create(:gitlab_subscription, :free, trial: true) }
+    let_it_be(:non_trialed_subgroup) { create :group, name: 'Sub-group', gitlab_subscription: create(:gitlab_subscription, :free), parent: non_trialed_group_a }
 
     subject { user.manageable_groups_eligible_for_trial }
 
@@ -1105,6 +1106,14 @@ RSpec.describe User do
 
       it { is_expected.to eq [non_trialed_group_a, non_trialed_group_z] }
     end
+
+    context 'owner of a top-level group with a sub-group' do
+      before do
+        non_trialed_group_a.add_owner(user)
+      end
+
+      it { is_expected.to eq [non_trialed_group_a] }
+    end
   end
 
   describe '#active_for_authentication?' do