Merge branch 'issue-boards-list-desciption-tooltip' into 'master'

Adds label description to issue board title

## What does this MR do?

Adds the label description as a tooltip the issue board title. Tooltip is not visible on the backlog or done list.

## Screenshots (if relevant)

![tooltip-title](/uploads/e807a7ff6c48ac2181c4d4e86adf0f77/tooltip-title.gif)

## What are the relevant issue numbers?

Closes #22710

See merge request !6743

1 files changed, 7 insertions, 1 deletions

diff --git a/spec/features/boards/boards_spec.rb b/spec/features/boards/boards_spec.rb
index 3234fabe288..a92075fec8f 100644
--- a/spec/features/boards/boards_spec.rb
+++ b/spec/features/boards/boards_spec.rb
@@ -53,7 +53,7 @@ describe 'Issue Boards', feature: true, js: true do
   context 'with lists' do
     let(:milestone) { create(:milestone, project: project) }
 
-    let(:planning)    { create(:label, project: project, name: 'Planning') }
+    let(:planning)    { create(:label, project: project, name: 'Planning', description: 'Test') }
     let(:development) { create(:label, project: project, name: 'Development') }
     let(:testing)     { create(:label, project: project, name: 'Testing') }
     let(:bug)         { create(:label, project: project, name: 'Bug') }
@@ -91,6 +91,12 @@ describe 'Issue Boards', feature: true, js: true do
       expect(page).to have_selector('.board', count: 4)
     end
 
+    it 'shows description tooltip on list title' do
+      page.within('.board:nth-child(2)') do
+        expect(find('.board-title span.has-tooltip')[:title]).to eq('Test')
+      end
+    end
+
     it 'shows issues in lists' do
       wait_for_board_cards(2, 2)
       wait_for_board_cards(3, 2)