public to_long_paths()
{
// establish
_temporaryDirectory = FileSystem.CreateTempDirectory();
_temporaryDirectory.Exists().Should().Be.True();
_temporaryDirectory.Should().Not.Be.Null();
// given
_directoryName = RandomName(15);
_dir = _temporaryDirectory.GetDirectory(_directoryName);
_dir.Should().Not.Be.Null();
_dir.MustExist();
}