Prevent specs from running indefinitely

Limit each example to 1 second in case of infinite loops. Can be redefined with
timeout: 0 on example metadata.

Author: avit

spec/spec_helper.rb

@@ -1,5 +1,6 @@
 require "bundler/setup"
 require 'ice_cube'
+require 'timeout'
 
 begin
   require 'simplecov'
@@ -69,4 +70,10 @@ def Object.const_missing(sym)
       example.run
     end
   end
+
+  config.around :each do |example|
+    Timeout.timeout(example.metadata.fetch(:timeout, 1)) do
+      example.run
+    end
+  end
 end