Allow backup tests to run locally

spec/tasks/gitlab/backup_rake_spec.rb

@@ -81,6 +81,10 @@ describe 'gitlab:app namespace rake task' do
   end # backup_restore task
   describe 'backup' do
+    before(:all) do
+      ENV['force'] = 'yes'
+    end
+
     def tars_glob
       Dir.glob(File.join(Gitlab.config.backup.path, '*_gitlab_backup.tar'))
     end
@@ -88,6 +92,9 @@ describe 'gitlab:app namespace rake task' do
     def create_backup
       FileUtils.rm tars_glob
+      # This reconnect makes our project fixture disappear, breaking the restore. Stub it out.
+      allow(ActiveRecord::Base.connection).to receive(:reconnect!)
+
       # Redirect STDOUT and run the rake task
       orig_stdout = $stdout
       $stdout = StringIO.new
@@ -119,9 +126,6 @@ describe 'gitlab:app namespace rake task' do
         FileUtils.mkdir_p(path)
         FileUtils.touch(File.join(path, "dummy.txt"))
-        # We need to use the full path instead of the relative one
-        allow(Gitlab.config.gitlab_shell).to receive(:path).and_return(File.expand_path(Gitlab.config.gitlab_shell.path, Rails.root.to_s))
-
         ENV["SKIP"] = "db"
         create_backup
       end