Add tests for dependency proxy UI

ee/spec/features/groups/dependency_proxy_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'Group Dependency Proxy' do
+  let(:owner) { create(:user) }
+  let(:developer) { create(:user) }
+  let(:group) { create(:group) }
+  let(:path) { group_dependency_proxy_path(group) }
+
+  before do
+    group.add_owner(owner)
+    group.add_developer(developer)
+  end
+
+  describe 'feature settings', :js do
+    context 'when not logged in' do
+      it 'does not show the feature settings' do
+        visit path
+
+        expect(page).not_to have_css('.js-dependency-proxy-toggle-area')
+        expect(page).not_to have_css('.js-dependency-proxy-url')
+      end
+    end
+
+    context 'when logged in as group owner' do
+      before do
+        sign_in(owner)
+        visit path
+      end
+
+      it 'toggle defaults to disabled' do
+        page.within('.js-dependency-proxy-toggle-area') do
+          expect(find('.js-project-feature-toggle-input', visible: false).value).to eq('false')
+        end
+      end
+
+      context 'when disabled' do
+        it 'does not show the proxy URL' do
+          expect(page).not_to have_css('.js-dependency-proxy-url')
+        end
+      end
+
+      context 'when enabled by owner' do
+        before do
+          page.within('.edit_dependency_proxy_group_setting') do
+            find('.js-project-feature-toggle').click
+          end
+
+          click_button('Save changes')
+          wait_for_requests
+          visit path
+        end
+
+        it 'shows the proxy URL' do
+          page.within('.edit_dependency_proxy_group_setting') do
+            expect(find('.js-dependency-proxy-url').value).to have_content('/dependency_proxy/containers')
+          end
+        end
+
+        context 'then when logged in as group developer' do
+          before do
+            sign_in(developer)
+            visit path
+          end
+
+          it 'does not show the feature toggle' do
+            expect(page).not_to have_css('.js-dependency-proxy-toggle-area')
+          end
+
+          it 'shows the proxy URL' do
+            expect(find('.js-dependency-proxy-url').value).to have_content('/dependency_proxy/containers')
+          end
+        end
+      end
+    end
+  end
+end
\ No newline at end of file