Fix cancel_all specs

app/views/projects/builds/index.html.haml

@@ -6,7 +6,7 @@
     - if @ci_project && current_user && can?(current_user, :manage_builds, @project)
       .pull-left.hidden-xs
         - if @all_builds.running_or_pending.any?
-          = link_to 'Cancel all', cancel_all_namespace_project_builds_path(@project.namespace, @project), data: { confirm: 'Are you sure?' }, method: :post, class: 'btn btn-danger'
+          = link_to 'Cancel all', cancel_all_namespace_project_builds_path(@project.namespace, @project), data: { confirm: 'Are you sure?' }, class: 'btn btn-danger'
 
   %ul.center-top-menu
     %li{class: ('active' if @scope.nil?)}

config/routes.rb

@@ -587,7 +587,7 @@ Gitlab::Application.routes.draw do
 
         resources :builds, only: [:index, :show] do
           collection do
-            post :cancel_all
+            get :cancel_all
           end
 
           member do

spec/features/builds_spec.rb

@@ -47,10 +47,10 @@ describe "Builds" do
     end
   end
 
-  describe "POST /:project/builds/:id/cancel_all" do
+  describe "GET /:project/builds/:id/cancel_all" do
     before do
       @build.run!
-      visit cancel_namespace_project_build_path(@gl_project.namespace, @gl_project, @build)
+      visit cancel_all_namespace_project_builds_path(@gl_project.namespace, @gl_project)
     end
 
     it { expect(page).to have_content 'All' }