def test_view_mixin_copies_data(adata, array_type: type, attr):
    N = 100
    adata = ad.AnnData(
        obs=pd.DataFrame(index=np.arange(N)), var=pd.DataFrame(index=np.arange(N))
    )

    X = array_type(sparse.eye(N, N).multiply(np.arange(1, N + 1)))
    if attr == "X":
        adata.X = X
    else:
        getattr(adata, attr)["arr"] = X

    view = adata[:50]

    if attr == "X":
        arr_view = view.X
    else:
        arr_view = getattr(view, attr)["arr"]

    arr_view_copy = arr_view.copy()

    if sparse.issparse(X):
        assert not np.shares_memory(arr_view.indices, arr_view_copy.indices)
        assert not np.shares_memory(arr_view.indptr, arr_view_copy.indptr)
        assert not np.shares_memory(arr_view.data, arr_view_copy.data)

        arr_view_copy.data[0] = -5
        assert not np.array_equal(arr_view_copy.data, arr_view.data)
    else:
        assert not np.shares_memory(arr_view, arr_view_copy)

        arr_view_copy[0, 0] = -5
        assert not np.array_equal(arr_view_copy, arr_view)
def testResidualWrapper(self):
    wrapper_type = rnn_cell_wrapper_v2.ResidualWrapper
    x = ops.convert_to_tensor_v2_with_dispatch(
        np.array([[1., 1., 1.]]), dtype="float32")
    m = ops.convert_to_tensor_v2_with_dispatch(
        np.array([[0.1, 0.1, 0.1]]), dtype="float32")
    base_cell = rnn_cell_impl.GRUCell(
        3, kernel_initializer=init_ops.constant_initializer(0.5),
        bias_initializer=init_ops.constant_initializer(0.5))
    g, m_new = base_cell(x, m)
    wrapper_object = wrapper_type(base_cell)
    children = wrapper_object._trackable_children()
    wrapper_object.get_config()  # Should not throw an error
    self.assertIn("cell", children)
    self.assertIs(children["cell"], base_cell)

    g_res, m_new_res = wrapper_object(x, m)
    self.evaluate([variables_lib.global_variables_initializer()])
    res = self.evaluate([g, g_res, m_new, m_new_res])
    # Residual connections
    self.assertAllClose(res[1], res[0] + [1., 1., 1.])
    # States are left untouched
    self.assertAllClose(res[2], res[3])