diff --git a/test/integration_test.rb b/test/integration_test.rb
index <HASH>..<HASH> 100644
--- a/test/integration_test.rb
+++ b/test/integration_test.rb
@@ -81,6 +81,6 @@ class IntegrationTest < Test::Unit::TestCase
   it 'does not generate warnings' do
     assert_raise(OpenURI::HTTPError) { server.get '/' }
     server.get '/app_file'
-    assert_empty server.warnings
+    assert_equal [], server.warnings
   end
 end
\ No newline at end of file
there is no assert_equal on <I>