- Define test_order= :random to run rails tests randomly if test_order= option is available post Rails 4.2

Author: vipulnsward

test/test_helper.rb

@@ -6,13 +6,13 @@
 # Configure Rails Environment
 ENV["RAILS_ENV"] = "test"
 
-require File.expand_path("../dummy/config/environment.rb",  __FILE__)
+require File.expand_path("../dummy/config/environment.rb", __FILE__)
 require "rails/test_help"
 require "rails/generators"
 require "pathname"
 require 'minitest/mock'
 
-CACHE_PATH = Pathname.new File.expand_path("../dummy/tmp/cache",  __FILE__)
+CACHE_PATH = Pathname.new File.expand_path("../dummy/tmp/cache", __FILE__)
 
 Rails.backtrace_cleaner.remove_silencers!
 
@@ -29,7 +29,10 @@ def clear_sprockets_cache
 # so override `fresh?` to mark it as expired.
 def manually_expire_asset(asset_name)
   asset = Rails.application.assets[asset_name]
-  def asset.fresh?(env); false; end
+
+  def asset.fresh?(env)
+    ; false;
+  end
 end
 
 # Load support files
@@ -40,6 +43,10 @@ def asset.fresh?(env); false; end
   ActiveSupport::TestCase.fixture_path = File.expand_path("../fixtures", __FILE__)
 end
 
+if ActiveSupport::TestCase.respond_to?(:test_order=)
+  ActiveSupport::TestCase.test_order = :random
+end
+
 def wait_for_turbolinks_to_be_available
   sleep(1)
 end