1 files changed, 28 insertions, 2 deletions

diff --git a/spec/models/work_items/widgets/hierarchy_spec.rb b/spec/models/work_items/widgets/hierarchy_spec.rb
index 43670b30645..7ff3088d9ec 100644
--- a/spec/models/work_items/widgets/hierarchy_spec.rb
+++ b/spec/models/work_items/widgets/hierarchy_spec.rb
@@ -36,14 +36,40 @@ RSpec.describe WorkItems::Widgets::Hierarchy, feature_category: :team_planning d
 
     it { is_expected.to contain_exactly(parent_link1.work_item, parent_link2.work_item) }
 
-    context 'with default order by created_at' do
+    context 'when ordered by relative position and created_at' do
       let_it_be(:oldest_child) { create(:work_item, :task, project: project, created_at: 5.minutes.ago) }
+      let_it_be(:newest_child) { create(:work_item, :task, project: project, created_at: 5.minutes.from_now) }
 
       let_it_be_with_reload(:link_to_oldest_child) do
         create(:parent_link, work_item_parent: work_item_parent, work_item: oldest_child)
       end
 
-      it { is_expected.to eq([link_to_oldest_child, parent_link1, parent_link2].map(&:work_item)) }
+      let_it_be_with_reload(:link_to_newest_child) do
+        create(:parent_link, work_item_parent: work_item_parent, work_item: newest_child)
+      end
+
+      let(:parent_links_ordered) { [link_to_oldest_child, parent_link1, parent_link2, link_to_newest_child] }
+
+      context 'when children relative positions are nil' do
+        it 'orders by created_at' do
+          is_expected.to eq(parent_links_ordered.map(&:work_item))
+        end
+      end
+
+      context 'when children relative positions are present' do
+        let(:first_position) { 10 }
+        let(:second_position) { 20 }
+        let(:parent_links_ordered) { [link_to_oldest_child, link_to_newest_child, parent_link1, parent_link2] }
+
+        before do
+          link_to_oldest_child.update!(relative_position: first_position)
+          link_to_newest_child.update!(relative_position: second_position)
+        end
+
+        it 'orders by relative_position and by created_at' do
+          is_expected.to eq(parent_links_ordered.map(&:work_item))
+        end
+      end
     end
   end
 end