Rakefile in combine_pdf-1.0.22 vs Rakefile in combine_pdf-1.0.23

@@ -1,7 +1,14 @@
-require "bundler/gem_tasks"
+require 'bundler/gem_tasks'
+require 'rake/testtask'
+
+task default: 'test'
+
+Rake::TestTask.new do |t|
+  t.test_files = FileList['test/**/*_test.rb']
+end