test/spec_mime.rb in rack-2.0.1 vs test/spec_mime.rb in rack-2.0.2

@@ -17,10 +17,10 @@
     # sanity check. it would be infeasible test every single mime-type.
     Rack::Mime.mime_type(File.extname('image.jpg')).must_equal 'image/jpeg'
   end
 
   it "should support null fallbacks" do
-    Rack::Mime.mime_type('.nothing', nil).must_equal nil
+    Rack::Mime.mime_type('.nothing', nil).must_be_nil
   end
 
   it "should match exact mimes" do
     Rack::Mime.match?('text/html', 'text/html').must_equal true
     Rack::Mime.match?('text/html', 'text/meme').must_equal false