public void TestSettingCoords()
{
Assert.AreEqual("42", _reader.Properties["x"]);
Assert.AreEqual("13", _reader.Properties["y"]);
Assert.AreEqual(Contents, _reader.Body);
_reader.Properties["x"] = "1337";
_reader.UpdateDocument();
Assert.AreEqual("<!DOCTYPE HTML><html><head><!-- Push Button=Receive Bacon --><!-- x=1337 --><!-- y=13 --><title></title></head><body></body></html>", _reader.Body);
Assert.AreEqual("1337", _reader.Properties["x"]);
_reader.Properties["y"] = "101";
_reader.UpdateDocument();
Assert.AreEqual("<!DOCTYPE HTML><html><head><!-- Push Button=Receive Bacon --><!-- x=1337 --><!-- y=101 --><title></title></head><body></body></html>", _reader.Body);
Assert.AreEqual("101", _reader.Properties["y"]);
}