# Copyright 2022 Huawei Technologies Co., Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============================================================================
"""test sequence getitem operation including variable"""
import pytest
from mindspore.common import mutable
from mindspore import jit
from mindspore import context

context.set_context(mode=context.GRAPH_MODE)


def test_getitem_with_empty_tuple_and_variable_index():
    """
    Feature: Setitem operation including variable.
    Description: setitem for dynamic length list and constant index return dynamic length list.
    Expectation: No exception.
    """

    @jit
    def foo(m, index):
        return m[index]

    x = mutable(())
    y = mutable(1)

    with pytest.raises(ValueError) as ex:
        foo(x, y)
    assert "cannot get item by index from an empty sequence" in str(ex.value)


def test_getitem_with_empty_list_and_variable_index():
    """
    Feature: Setitem operation including variable.
    Description: setitem for dynamic length list and constant index return dynamic length list.
    Expectation: No exception.
    """

    @jit
    def foo(m, index):
        return m[index]

    x = mutable([])
    y = mutable(1)

    with pytest.raises(ValueError) as ex:
        foo(x, y)
    assert "cannot get item by index from an empty sequence" in str(ex.value)
