bring back test timeouts

spec/rails_spec.rb

@@ -1,6 +1,8 @@
 require 'spec_helper'
 
 describe 'rails' do
+  let(:test_timeout) { 600 } # this can take very long on fresh bundle ...
+
   def sh(command, options={})
     result = ''
     IO.popen(options.fetch(:environment, {}), command, err: [:child, :out]) do |io|
@@ -10,6 +12,7 @@ def sh(command, options={})
     result
   end
 
+  # TODO: rails 6
   %w(rails51 rails52).each do |rails|
     it "can create and run #{rails}" do
       if RUBY_PLATFORM == "java"

spec/spec_helper.rb

@@ -180,6 +180,8 @@ def setup_runtime_log
   end
 end
 
+TestTookTooLong = Class.new(Timeout::Error)
+
 RSpec.configure do |config|
   config.filter_run :focus => true
   config.run_all_when_everything_filtered = true
@@ -188,6 +190,13 @@ def setup_runtime_log
 
   config.raise_errors_for_deprecations!
 
+  # sometimes stuff hangs -> do not hang everything
+  # NOTE: the timeout error can sometimes swallow errors, comment it out if you run into trouble
+  config.include(Module.new {def test_timeout;30;end })
+  config.around do |example|
+    Timeout.timeout(test_timeout, TestTookTooLong, &example)
+  end
+
   config.after do
     ENV.delete "PARALLEL_TEST_GROUPS"
     ENV.delete "PARALLEL_TEST_PROCESSORS"