'A filesystem which is received from a remote filesystem (which is
writable in its origin pool) is not writeable.'

def test_written_created_readonly(self):

    d = create_and_copy(self, build_pool)
    def got_volumes(copied):
        self.assertReadOnly(copied.to_volume.get_filesystem().get_path())
    d.addCallback(got_volumes)
    return d
