Rakefile in configatron-3.2.0 vs Rakefile in configatron-4.0.0

@@ -1,9 +1,13 @@
 require 'bundler'
 require 'rake/testtask'
 
 Bundler::GemHelper.install_tasks
 
-Rake::TestTask.new(:default) do |t|
-  t.libs << "test"
-  t.test_files = FileList["test/**/*_test.rb"]
-end
\ No newline at end of file
+Rake::TestTask.new do |t|
+  t.libs = ["lib"]
+  # t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/**/*.rb'].reject do |file|
+    file.end_with?('_lib.rb') || file.include?('/_lib/')
+  end
+end