public void CanWriteTest()
{
var converter = new XmlDictionaryConverter();
Assert.IsTrue(converter.CanWrite(typeof(Dictionary <string, object>)));
Assert.IsTrue(converter.CanWrite(typeof(Dictionary <int, int>)));
Assert.IsFalse(converter.CanWrite(typeof(object)));
Assert.IsFalse(converter.CanWrite(typeof(IDictionary)));
Assert.IsFalse(converter.CanWrite(typeof(Dictionary <,>)));
}