public void WriteSettingsFile_SavesFile() { var vm = new Example2a(); vm.WriteSettingsFile(); var xDoc = XDocument.Load(Example2a.SettingsFile); var insertedValue = xDoc.Descendants().Single(x => x.Name == "someNodeName").Value; Assert.AreEqual(Example2a.TheAnswerToLifeUniverseAndEverything, int.Parse(insertedValue)); }