Fix bug when links in tabs of the labels index pages ends with .html

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/helpers/labels_helper.rb

@@ -143,7 +143,7 @@ module LabelsHelper
 
   def labels_filter_path(options = {})
     project = @target_project || @project
-    format = options.delete(:format) || :html
+    format = options.delete(:format)
 
     if project
       project_labels_path(project, format, options)

changelogs/unreleased/52548-links-in-tabs-of-the-labels-index-pages-ends-with-html.yml

+---
+title: Fix bug when links in tabs of the labels index pages ends with .html
+merge_request: 22716
+author:
+type: fixed

spec/helpers/labels_helper_spec.rb

@@ -211,4 +211,29 @@ describe LabelsHelper do
       end
     end
   end
+
+  describe 'labels_filter_path' do
+    let(:group) { create(:group) }
+    let(:project) { create(:project) }
+
+    it 'links to the dashboard labels page' do
+      expect(labels_filter_path).to eq(dashboard_labels_path)
+    end
+
+    it 'links to the group labels page' do
+      assign(:group, group)
+
+      expect(helper.labels_filter_path).to eq(group_labels_path(group))
+    end
+
+    it 'links to the group labels page' do
+      assign(:project, project)
+
+      expect(helper.labels_filter_path).to eq(project_labels_path(project))
+    end
+
+    it 'supports json format' do
+      expect(labels_filter_path(format: :json)).to eq(dashboard_labels_path(format: :json))
+    end
+  end
 end