def test_view_of_view(matrix_type, subset_func, subset_func2):
    adata = gen_adata((30, 15), X_type=matrix_type)
    adata.raw = adata
    if subset_func is single_subset:
        pytest.xfail("Other subset generating functions have trouble with this")
    var_s1 = subset_func(adata.var_names, min_size=4)
    var_view1 = adata[:, var_s1]
    var_s2 = subset_func2(var_view1.var_names)
    var_view2 = var_view1[:, var_s2]
    assert var_view2._adata_ref is adata
    obs_s1 = subset_func(adata.obs_names, min_size=4)
    obs_view1 = adata[obs_s1, :]
    obs_s2 = subset_func2(obs_view1.obs_names)
    assert adata[obs_s1, :][:, var_s1][obs_s2, :]._adata_ref is adata

    view_of_actual_copy = adata[:, var_s1].copy()[obs_s1, :].copy()[:, var_s2].copy()

    view_of_view_copy = adata[:, var_s1][obs_s1, :][:, var_s2].copy()

    assert_equal(view_of_actual_copy, view_of_view_copy, exact=True)
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])