open-cas-linux/test/functional/tests/fault_injection/test_fault_power_hit.py
Karolina Rogowska aa08a82669 Adding test 'test_fault_power_hit' and cli messages accordingly
Signed-off-by: Karolina Rogowska <karolina.rogowska@intel.com>
2021-01-14 13:10:50 +01:00

98 lines
3.9 KiB
Python

#
# Copyright(c) 2020 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause-Clear
#
import time
import pytest
from api.cas import casadm, cli, cli_messages
from api.cas.cache_config import CacheMode
from core.test_run import TestRun
from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
from test_utils.output import CmdException
from test_utils.size import Size, Unit
log_path = "/var/log/opencas.log"
wait_long_time = 180
wait_short_time = 15
@pytest.mark.parametrizex("cache_mode", CacheMode)
@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
@pytest.mark.require_plugin("power_control")
def test_fault_power_hit(cache_mode):
"""
title: Test with power hit.
description: |
Test if there will be no metadata initialization after wake up
- when starting cache without initialization.
pass_criteria:
- Start cache without re-initialization failed.
- Start cache with load works correctly.
- Expected message found in log.
"""
with TestRun.step("Prepare CAS device."):
cache_disk = TestRun.disks['cache']
core_disk = TestRun.disks['core']
cache_disk.create_partitions([Size(2, Unit.GibiByte)])
core_disk.create_partitions([Size(2, Unit.GibiByte)])
cache_dev = cache_disk.partitions[0]
core_dev = core_disk.partitions[0]
cache = casadm.start_cache(cache_dev, cache_mode, force=True)
core = cache.add_core(core_dev)
with TestRun.step("Mark log lines for later validation of new entries."):
last_read_line = 1
log_lines = TestRun.executor.run_expect_success(
f"tail -qn +{last_read_line} {log_path}").stdout.splitlines()
last_read_line += len(log_lines)
with TestRun.step("Hard reset."):
power_control = TestRun.plugin_manager.get_plugin('power_control')
power_control.power_cycle()
with TestRun.step("Start cache without re-initialization."):
output = TestRun.executor.run_expect_fail(cli.start_cmd(
cache_dev=str(cache_dev.path),
cache_mode=str(cache_mode.name.lower()),
force=False, load=False))
if cli_messages.check_stderr_msg(output, cli_messages.error_inserting_cache) and \
cli_messages.check_stderr_msg(output,
cli_messages.reinitialize_with_force_or_recovery):
TestRun.LOGGER.info(f"Found expected exception: {cli_messages.error_inserting_cache}"
f" and {cli_messages.reinitialize_with_force_or_recovery}")
with TestRun.step("Start cache with load."):
try:
cache = casadm.load_cache(cache_dev)
TestRun.LOGGER.info(f"Cache device loaded correctly (as expected).")
except CmdException as e:
TestRun.LOGGER.fail(f"Failed to load cache device. Exception: {e.output}")
time.sleep(wait_short_time)
message_found = check_log(last_read_line, cli_messages.reinitialize_with_force_or_recovery)
# check log second time in case that operation logging would take some more time
if not message_found:
time.sleep(wait_long_time)
result = check_log(last_read_line, cli_messages.reinitialize_with_force_or_recovery)
if not result:
TestRun.LOGGER.fail(f"Haven't found expected message in the log.")
def check_log(last_read_line, expected_message):
"""Read recent lines in log, look for given, expected message."""
cmd = f"tail -qn +{last_read_line} {log_path}"
log = TestRun.executor.run(cmd)
if cli_messages.check_stdout_msg(log, expected_message):
TestRun.LOGGER.info(f"Found expected message in log: {expected_message}")
return True
else:
TestRun.LOGGER.warning(f"Haven't found expected message in log: {expected_message}")
return False