spec/support/test_app.rb in capistrano-3.16.0 vs spec/support/test_app.rb in capistrano-3.17.0

@@ -38,9 +38,10 @@
   def create_test_app
     FileUtils.rm_rf(test_app_path)
     FileUtils.mkdir(test_app_path)
 
     File.open(gemfile, "w+") do |file|
+      file.write "source 'https://rubygems.org'\n"
       file.write "gem 'capistrano', path: '#{path_to_cap}'"
     end
 
     Dir.chdir(test_app_path) do
       run "bundle"