public void DotDotIsParentDirectory()
{
DirectoryInfo result = Create(Path.Combine(GetTestFilePath(), ".."));
Assert.Equal(IOServices.RemoveTrailingSlash(TestDirectory), result.FullName);
result = Create(Path.Combine(GetTestFilePath(), "..") + Path.DirectorySeparatorChar);
Assert.Equal(IOServices.AddTrailingSlashIfNeeded(TestDirectory), result.FullName);
}