Test for enabling/disabling runners from admin runner page

app/views/admin/runners/show.html.haml

@@ -28,7 +28,7 @@
   .col-md-6
     %h4 Restrict projects for this runner
     - if @runner.projects.any?
-      %table.table
+      %table.table.assigned-projects
         %thead
           %tr
             %th Assigned projects
@@ -44,7 +44,7 @@
                 .pull-right
                   = link_to 'Disable', [:admin, project.namespace.becomes(Namespace), project, runner_project], method: :delete, class: 'btn btn-danger btn-xs'
 
-    %table.table
+    %table.table.unassigned-projects
       %thead
         %tr
           %th Project

spec/features/admin/admin_runners_spec.rb

@@ -60,6 +60,40 @@ describe "Admin Runners" do
       it { expect(page).to have_content(@project1.name_with_namespace) }
       it { expect(page).not_to have_content(@project2.name_with_namespace) }
     end
+
+    describe 'enable/create' do
+      before do
+        @project1.runners << runner
+        visit admin_runner_path(runner)
+      end
+
+      it 'enables specific runner for project' do
+        within '.unassigned-projects' do
+          click_on 'Enable'
+        end
+
+        assigned_project = page.find('.assigned-projects')
+
+        expect(assigned_project).to have_content(@project2.path)
+      end
+    end
+
+    describe 'disable/destroy' do
+      before do
+        @project1.runners << runner
+        visit admin_runner_path(runner)
+      end
+
+      it 'enables specific runner for project' do
+        within '.assigned-projects' do
+          click_on 'Disable'
+        end
+
+        new_runner_project = page.find('.unassigned-projects')
+
+        expect(new_runner_project).to have_content(@project1.path)
+      end
+    end
   end
 
   describe 'runners registration token' do