private void ParseAndAssertObjectGraph(string sourceText, MarkupExtension expected)
{
IMarkupExtensionParser markupExtensionParser = new MarkupExtensionParser();
MarkupExtension actual;
var result = markupExtensionParser.TryParse(sourceText, out actual);
Assert.That(result, Is.True);
Assert.That(actual, Is.Not.Null);
var compareLogic = new CompareLogic();
var compareResult = compareLogic.Compare(expected, actual);
Assert.That(compareResult.AreEqual, Is.True, compareResult.DifferencesString);
}
