1 files changed, 17 insertions, 0 deletions
diff --git a/spec/models/group_spec.rb b/spec/models/group_spec.rb
index 892c31a9204..520421ac5e3 100644
--- a/spec/models/group_spec.rb
+++ b/spec/models/group_spec.rb
@@ -1042,4 +1042,21 @@ describe Group do
       expect(group.access_request_approvers_to_be_notified).to eq(active_owners_in_recent_sign_in_desc_order)
     end
   end
+
+  describe '.groups_including_descendants_by' do
+    it 'returns the expected groups for a group and its descendants' do
+      parent_group1 = create(:group)
+      child_group1 = create(:group, parent: parent_group1)
+      child_group2 = create(:group, parent: parent_group1)
+
+      parent_group2 = create(:group)
+      child_group3 = create(:group, parent: parent_group2)
+
+      create(:group)
+
+      groups = described_class.groups_including_descendants_by([parent_group2.id, parent_group1.id])
+
+      expect(groups).to contain_exactly(parent_group1, parent_group2, child_group1, child_group2, child_group3)
+    end
+  end
 end