Removes duplicates from the label dropdown

It concats the duplicate labels into a single label in the dropdown with
the color being a gradient of the differnet colors being concatted.

Closes #16555

1 files changed, 29 insertions, 0 deletions

diff --git a/spec/features/dashboard/label_filter_spec.rb b/spec/features/dashboard/label_filter_spec.rb
new file mode 100644
index 00000000000..24e83d44010
--- /dev/null
+++ b/spec/features/dashboard/label_filter_spec.rb
@@ -0,0 +1,29 @@
+require 'spec_helper'
+
+describe 'Dashboard > label filter', feature: true, js: true do
+  let(:user) { create(:user) }
+  let(:project) { create(:project, name: 'test', namespace: user.namespace) }
+  let(:project2) { create(:project, name: 'test2', path: 'test2', namespace: user.namespace) }
+  let(:label) { create(:label, title: 'bug', color: '#ff0000') }
+  let(:label2) { create(:label, title: 'bug') }
+
+  before do
+    project.labels << label
+    project2.labels << label2
+
+    login_as(user)
+    visit issues_dashboard_path
+  end
+
+  context 'duplicate labels' do
+    it 'should remove duplicate labels' do
+      page.within('.labels-filter') do
+        click_button 'Label'
+      end
+
+      page.within('.dropdown-menu-labels') do
+        expect(page).to have_selector('.dropdown-content a', text: 'bug', count: 1)
+      end
+    end
+  end
+end