Debug windows diff

test/mini_mime_test.rb

@@ -57,13 +57,13 @@ def should_prioritize_extensions_correctly
 
   if defined? MIME::Types
     def test_full_parity_with_mime_types
-      skip("Windows MIME::Types isn't reliable") if RUBY_PLATFORM.match?(/windows/i)
-
       exts = Set.new
       MIME::Types.each do |type|
         type.extensions.each { |ext| exts << ext }
       end
 
+      differences = []
+
       exts.each do |ext|
         types = MIME::Types.type_for("a.#{ext}")
 
@@ -74,9 +74,15 @@ def test_full_parity_with_mime_types
         # if type.content_type != MiniMime.lookup_by_filename("a.#{ext}").content_type
         #   puts "#{ext} Expected #{type.content_type} Got #{MiniMime.lookup_by_filename("a.#{ext}").content_type}"
         # end
+        expected = type.content_type
+        actual = MiniMime.lookup_by_filename("a.#{ext}").content_type
 
-        assert_equal type.content_type, MiniMime.lookup_by_filename("a.#{ext}").content_type
+        if expected != actual
+          differences << %{Expected ".#{ext}" to return #{expected.inspect}, got: #{actual.inspect}}
+        end
       end
+
+      assert differences.empty?, differences.join("\n")
     end
   end
 end