def test_layers_view():
    X = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
    L = np.array([[10, 11, 12], [13, 14, 15], [16, 17, 18]])
    real_adata = ad.AnnData(X)
    real_adata.layers["L"] = L
    view_adata = real_adata[1:, 1:]
    real_hash = joblib.hash(real_adata)
    view_hash = joblib.hash(view_adata)

    assert view_adata.is_view

    with pytest.raises(ValueError):
        view_adata.layers["L2"] = L + 2

    assert view_adata.is_view  # Failing to set layer item makes adata not view
    assert real_hash == joblib.hash(real_adata)
    assert view_hash == joblib.hash(view_adata)

    view_adata.layers["L2"] = L[1:, 1:] + 2

    assert not view_adata.is_view
    assert real_hash == joblib.hash(real_adata)
    assert view_hash != joblib.hash(view_adata)
def __init__(self, host, key, port=443, max_size=4096):

        # Params for all class
        self.host = host
        self.port = port
        self.max_size = max_size - 60
        self.AESDriver = AESCipher(key=key)
        self.serv_addr = (host, port)

        # Class Globals
        self.max_packets = 255 # Limitation by QUIC itself.
        self._genSeq()   # QUIC Sequence is used to know that this is the same sequence,
                          # and it's a 20 byte long that is kept the same through out the
                          # session and is transfered hex encoded.
        self.delay = 0.1

        self.sock = None
        if self._createSocket() is 1:               # Creating a UDP socket object
            sys.exit(1)
        self.serv_addr = (self.host, self.port)     # Creating socket addr format