#
# Copyright(c) 2020-2021 Intel Corporation
# Copyright(c) 2024 Huawei Technologies Co., Ltd.
# SPDX-License-Identifier: BSD-3-Clause
#

import time
import pytest

from api.cas import cas_module, casctl
from api.cas.cas_module import CasModule
from core.test_run import TestRun
from test_tools.os_tools import load_kernel_module


@pytest.mark.os_dependent
def test_init_status():
    """
    title: CAS management device status
    description: |
        Verify that CAS management device is present in OS only when CAS modules are loaded.
    pass_criteria:
      - CAS management device present in OS when CAS modules are loaded.
      - CAS management device not present in OS when CAS modules are not loaded.
    """

    with TestRun.step("Check if CAS management device is present in OS"):
        time.sleep(5)
        if cas_module.is_cas_management_dev_present():
            TestRun.LOGGER.info("CAS management device is present in OS when CAS module is loaded.")
        else:
            TestRun.fail("CAS management device is not present in OS when CAS module is loaded.")

    with TestRun.step("Remove CAS module"):
        cas_module.unload_all_cas_modules()

    with TestRun.step("Stop CAS service"):
        casctl.stop()

    with TestRun.step("Check if CAS management device is not present in OS"):
        time.sleep(5)
        if not cas_module.is_cas_management_dev_present():
            TestRun.LOGGER.info(
                "CAS management device is not present in OS when CAS module is not loaded.")
        else:
            TestRun.fail("CAS management device is present in OS when CAS module is not loaded.")

    with TestRun.step("Load CAS modules and start CAS service"):
        load_kernel_module(CasModule.cache.value)
        casctl.start()