public void CreateTemporaryFileTest()
{
string extension = ".tmp";
File actual;
actual = File.CreateTemporaryFile(extension);
Assert.IsFalse(System.IO.File.Exists(actual.Path), "File should not exist");
actual.Create();
Assert.IsTrue(System.IO.File.Exists(actual.Path), "File should exist");
string dir = Path.GetDirectoryName(actual.Path) + "\\";
Assert.AreEqual(Path.GetTempPath(), dir, "Temp Directory different");
actual.Delete();
Assert.IsFalse(System.IO.File.Exists(actual.Path), "Temp File should not exist");
}