Rails5 fix specs duplicate key value violates unique constraint...

Rails5 fix specs duplicate key value violates unique constraint 'index_gpg_signatures_on_commit_sha'

changelogs/unreleased/rails5-fix-duplicate-gpg-signature.yml

+---
+title: Rails5 fix specs duplicate key value violates unique constraint 'index_gpg_signatures_on_commit_sha'
+merge_request: 21119
+author: Jasper Maes
+type: fixed

spec/features/projects/blobs/shortcuts_blob_spec.rb

 require 'spec_helper'
-describe 'Blob shortcuts' do
+describe 'Blob shortcuts', :js do
   include TreeHelper
   let(:project) { create(:project, :public, :repository) }
   let(:path) { project.repository.ls_files(project.repository.root_ref)[0] }

spec/features/projects/files/user_browses_files_spec.rb

@@ -210,7 +210,7 @@ describe "User browses files" do
     end
   end
-  context "when browsing a file content" do
+  context "when browsing a file content", :js do
     before do
       visit(tree_path_root_ref)

spec/features/projects/files/user_deletes_files_spec.rb

 require 'spec_helper'
-describe 'Projects > Files > User deletes files' do
+describe 'Projects > Files > User deletes files', :js do
   let(:fork_message) do
     "You're not allowed to make changes to this project directly. "\
     "A fork of this project has been created that you can make changes in, so you can submit a merge request."

spec/features/projects/files/user_edits_files_spec.rb

 require 'spec_helper'
-describe 'Projects > Files > User edits files' do
+describe 'Projects > Files > User edits files', :js do
   include ProjectForksHelper
   let(:project) { create(:project, :repository, name: 'Shop') }
   let(:project2) { create(:project, :repository, name: 'Another Project', path: 'another-project') }

spec/features/projects/files/user_replaces_files_spec.rb

 require 'spec_helper'
-describe 'Projects > Files > User replaces files' do
+describe 'Projects > Files > User replaces files', :js do
   include DropzoneHelper
   let(:fork_message) do