public void ToConverterDictionary()
{
var registry = new ConverterRegistry
{
new GuidConverter(),
new EmailConverter()
};
var dictionary = registry.ToConverterDictionary();
registry.Add(new CustomPlayerConverter());
// We shouldn't have CustomPlayer in the dictionary, but we should have the other two.
Assert.Equal(new[] { typeof(Email), typeof(Guid) }, dictionary.Keys.OrderBy(t => t.FullName));
}