Rakefile in raap-0.5.0 vs Rakefile in raap-0.6.0

@@ -2,10 +2,12 @@
 
 require "bundler/gem_tasks"
 require "minitest/test_task"
 require "rubocop/rake_task"
 
-Minitest::TestTask.create
+Minitest::TestTask.create do |t|
+  t.test_prelude = 'require "test/test_helper"'
+end
 
 RuboCop::RakeTask.new
 
 namespace :steep do
   task :check do