Add html_options to gl_tab_counter_badge

app/helpers/tab_helper.rb

@@ -211,9 +211,10 @@ module TabHelper
   end
 end
 
-def gl_tab_counter_badge(count)
+def gl_tab_counter_badge(count, html_options = {})
+  badge_classes = %w[badge badge-muted badge-pill gl-badge sm gl-tab-counter-badge]
   content_tag(:span,
     count,
-    class: 'badge badge-muted badge-pill gl-badge sm gl-tab-counter-badge'
+    class: [*html_options[:class], badge_classes].join(' ')
   )
 end

spec/helpers/tab_helper_spec.rb

@@ -155,5 +155,11 @@ RSpec.describe TabHelper do
     it 'creates a tab counter badge' do
       expect(gl_tab_counter_badge(1)).to eq('<span class="badge badge-muted badge-pill gl-badge sm gl-tab-counter-badge">1</span>')
     end
+
+    context 'with extra classes' do
+      it 'creates a tab counter badge with the correct class attribute' do
+        expect(gl_tab_counter_badge(1, { class: 'js-test' })).to eq('<span class="js-test badge badge-muted badge-pill gl-badge sm gl-tab-counter-badge">1</span>')
+      end
+    end
   end
 end