public void ToXml_ReturnsValidXmlDoc()
{
var grid = new UniversalGrid <string>(10, 15);
grid.SetObject("X", 5, 5);
var xmlDoc = grid.ToXml();
Assert.That(xmlDoc.Root.Name.LocalName, Is.EqualTo("grid"));
Assert.That(xmlDoc.Root.Attribute("width").Value, Is.EqualTo("10"));
Assert.That(xmlDoc.Root.Attribute("height").Value, Is.EqualTo("15"));
Assert.That(xmlDoc.Root.Attribute("viewport").Value, Is.EqualTo("0 0 9 14"));
Assert.That(xmlDoc.Root.Elements().ElementAt(5).Elements().ElementAt(5).Value, Is.EqualTo("X"));
Console.WriteLine(xmlDoc);
}