Rakefile in fluent-plugin-ec2-metadata-0.0.10 vs Rakefile in fluent-plugin-ec2-metadata-0.0.11

@@ -1,10 +1,18 @@
 require "bundler/gem_tasks"
+require "fluent/version"
+require "rake/testtask"
 
-require 'rake/testtask'
 Rake::TestTask.new(:test) do |test|
   test.libs << 'lib' << 'test'
-  test.pattern = 'test/**/test_*.rb'
+
+  test.test_files = case
+    when Fluent::VERSION.start_with?("0.10.")
+      ["test/plugin/test_out_ec2_metadata.rb"]
+    else
+      Dir['test/**/test_*.rb']
+  end
+
   test.verbose = true
 end
 
 task :default => :test