public void TestFixtureSetUp()
        {
            Directory.CreateDirectory("MementoDirectory");

            string instance1 =
                "<Instance Key=\"Red\" Type=\"Color\"><Property Name=\"Color\" Value=\"Red\" /></Instance>";
            string instance2 =
                "<Instance Key=\"Blue\" Type=\"Color\"><Property Name=\"Color\" Value=\"Blue\" /></Instance>";
            string instance3 =
                "<Instance Key=\"Bigger\" Type=\"GreaterThan\"><Property Name=\"Attribute\" Value=\"MyDad\" /><Property Name=\"Value\" Value=\"10\" /></Instance>";

            writeFile(instance1, Path.Combine("MementoDirectory", "Red.xml"));
            writeFile(instance2, Path.Combine("MementoDirectory", "Blue.xml"));
            writeFile(instance3, Path.Combine("MementoDirectory", "Bigger.xml"));

            _source = new DirectoryXmlMementoSource("MementoDirectory", "xml", XmlMementoStyle.NodeNormalized);
        }
 public void ValidateIsNotSuccessfulWithADirectoryItCannotFind()
 {
     var source =
         new DirectoryXmlMementoSource("NotARealDirectory", "xml", XmlMementoStyle.NodeNormalized);
     source.Validate();
 }