Add test to check if /users/User is redirected to /User

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

changelogs/unreleased/295625-include-a-test-to-check-if-users-user-is-redirected-to-users-show.yml

+---
+title: Add test to check if /users/User is redirected to /User
+merge_request: 50651
+author: Takuya Noguchi
+type: other

spec/requests/users_controller_spec.rb

@@ -97,6 +97,14 @@ RSpec.describe UsersController do
     end
   end
 
+  describe 'GET /users/:username (deprecated user top)' do
+    it 'redirects to /user1' do
+      get '/users/user1'
+
+      expect(response).to redirect_to user_path('user1')
+    end
+  end
+
   describe 'GET #activity' do
     shared_examples_for 'renders the show template' do
       it 'renders the show template' do