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Fix interruption tests

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Add helper functions and use them in interruption tests.
Fix tests descriptions and messages.
Update test according to current behaviour of cache mode switching.

Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
This commit is contained in:
Slawomir Jankowski 2021-03-22 16:38:20 +01:00 committed by Daniel Madej
parent 5431f83273
commit 0b299b7d96
1 changed files with 50 additions and 23 deletions
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73
test/functional/tests/fault_injection/test_fault_injection_interrupts.py
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@ -2,17 +2,21 @@
# Copyright(c) 2020-2021 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause
#
from time import sleep
from datetime import timedelta, datetime
import pytest
from api.cas import casadm, casadm_parser, cli
from api.cas.cache import Cache
from api.cas.cache_config import CacheMode, CleaningPolicy, CacheModeTrait
from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
from api.cas.core import Core
from core.test_run import TestRun
from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
from test_tools.disk_utils import Filesystem
from test_utils import os_utils
from test_utils.os_utils import Udev, DropCachesMode
from test_utils.output import CmdException
from test_utils.size import Size, Unit
mount_point = "/mnt/cas"
@ -34,7 +38,7 @@ def test_interrupt_core_flush(cache_mode, filesystem):
- No system crash.
- Flushing would be stopped after interruption.
- Md5sum are correct during all test steps.
- Dirty blocks quantity after interruption is equal or lower.
- Dirty blocks quantity after interruption is equal or lower but non-zero.
"""
with TestRun.step("Prepare cache and core."):
cache_part, core_part = prepare()
@ -67,9 +71,9 @@ def test_interrupt_core_flush(cache_mode, filesystem):
with TestRun.step("Start flushing core device."):
flush_pid = TestRun.executor.run_in_background(
cli.flush_core_cmd(str(cache.cache_id), str(core.core_id)))
sleep(2)
with TestRun.step("Interrupt core flushing."):
wait_for_flushing(cache, core)
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
while percentage < 50:
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
@ -113,7 +117,7 @@ def test_interrupt_cache_flush(cache_mode, filesystem):
- No system crash.
- Flushing would be stopped after interruption.
- Md5sum are correct during all test steps.
- Dirty blocks quantity after interruption is equal or lower.
- Dirty blocks quantity after interruption is equal or lower but non-zero.
"""
with TestRun.step("Prepare cache and core."):
cache_part, core_part = prepare()
@ -146,9 +150,9 @@ def test_interrupt_cache_flush(cache_mode, filesystem):
with TestRun.step("Start flushing cache."):
flush_pid = TestRun.executor.run_in_background(
cli.flush_cache_cmd(str(cache.cache_id)))
sleep(2)
with TestRun.step("Interrupt cache flushing"):
wait_for_flushing(cache, core)
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
while percentage < 50:
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
@ -193,7 +197,7 @@ def test_interrupt_core_remove(cache_mode, filesystem):
- Core would not be removed from cache after interruption.
- Flushing would be stopped after interruption.
- Md5sum are correct during all test steps.
- Dirty blocks quantity after interruption is equal or lower.
- Dirty blocks quantity after interruption is lower but non-zero.
"""
with TestRun.step("Prepare cache and core."):
cache_dev = TestRun.disks['cache']
@ -235,9 +239,9 @@ def test_interrupt_core_remove(cache_mode, filesystem):
with TestRun.step("Start removing core device."):
flush_pid = TestRun.executor.run_in_background(
cli.remove_core_cmd(str(cache.cache_id), str(core.core_id)))
sleep(2)
with TestRun.step("Interrupt core removing"):
wait_for_flushing(cache, core)
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
while percentage < 50:
percentage = casadm_parser.get_flushing_progress(cache.cache_i, core.core_id)
@ -286,7 +290,7 @@ def test_interrupt_cache_mode_switch_immediately(cache_mode, filesystem):
- Cache mode will not be switched after interruption.
- Flushing would be stopped after interruption.
- Md5sum are correct during all test steps.
- Dirty blocks quantity after interruption is equal or lower.
- Dirty blocks quantity after interruption is lower but non-zero.
"""
with TestRun.step("Prepare cache and core."):
cache_part, core_part = prepare()
@ -326,11 +330,11 @@ def test_interrupt_cache_mode_switch_immediately(cache_mode, filesystem):
with TestRun.step("Check number of dirty data on exported object after interruption."):
cache_dirty_blocks_after = cache.get_dirty_blocks()
if cache_dirty_blocks_after >= cache_dirty_blocks_before:
TestRun.LOGGER.error("Quantity of dirty lines after cache flush interruption "
"should be lower.")
TestRun.LOGGER.error("Quantity of dirty lines after cache mode switching "
"interruption should be lower.")
if int(cache_dirty_blocks_after) == 0:
TestRun.LOGGER.error("Quantity of dirty lines after cache flush interruption "
"should not be zero.")
TestRun.LOGGER.error("Quantity of dirty lines after cache mode switching "
"interruption should not be zero.")
with TestRun.step("Check cache mode."):
if cache.get_cache_mode() != cache_mode:
@ -346,7 +350,7 @@ def test_interrupt_cache_mode_switch_immediately(cache_mode, filesystem):
with TestRun.step("Check md5 sum of test file again."):
if test_file_md5sum_before != test_file.md5sum():
TestRun.LOGGER.error(
"Md5 sums before and after interrupting core removal are different.")
"Md5 sums before and after interrupting mode switching are different.")
with TestRun.step("Unmount core device."):
core_part.unmount()
@ -364,9 +368,10 @@ def test_interrupt_cache_mode_switch_delayed(cache_mode, filesystem):
interruption with delay.
pass_criteria:
- No system crash.
- Cache mode cannot be interrupted with delay.
- Cache mode will not be switched after interruption.
- Flushing would be stopped after interruption.
- Md5sum are correct during all test steps.
- Dirty blocks quantity after cache mode switching is zero.
- Dirty blocks quantity after interruption is lower but non-zero.
"""
with TestRun.step("Prepare cache and core."):
cache_part, core_part = prepare()
@ -391,12 +396,18 @@ def test_interrupt_cache_mode_switch_delayed(cache_mode, filesystem):
with TestRun.step("Check md5 sum of test file."):
test_file_md5sum_before = test_file.md5sum()
with TestRun.step("Get number of dirty data on exported object before "
"switching cache mode interruption."):
os_utils.sync()
os_utils.drop_caches(DropCachesMode.ALL)
cache_dirty_blocks_before = cache.get_dirty_blocks()
with TestRun.step("Start switching cache mode."):
flush_pid = TestRun.executor.run_in_background(cli.set_cache_mode_cmd(
str(CacheMode.DEFAULT.name.lower()), str(cache.cache_id), "yes"))
sleep(2)
with TestRun.step("Send interruption signal."):
wait_for_flushing(cache, core)
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
while percentage < 50:
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
@ -405,12 +416,17 @@ def test_interrupt_cache_mode_switch_delayed(cache_mode, filesystem):
with TestRun.step(
"Get quantity of dirty data on exported object after sending interruption "
"signal to cas to stop mode switching."):
if int(cache.get_dirty_blocks()) != 0:
TestRun.LOGGER.error("Quantity of dirty lines should be zero now.")
cache_dirty_blocks_after = cache.get_dirty_blocks()
if cache_dirty_blocks_after >= cache_dirty_blocks_before:
TestRun.LOGGER.error("Quantity of dirty lines after cache mode switching "
"interruption should be lower.")
if int(cache_dirty_blocks_after) == 0:
TestRun.LOGGER.error("Quantity of dirty lines after cache mode switching "
"interruption should not be zero.")
with TestRun.step("Check cache mode."):
if cache.get_cache_mode() == cache_mode:
TestRun.LOGGER.error("Cache mode should have changed.")
if cache.get_cache_mode() != cache_mode:
TestRun.LOGGER.error("Cache mode should remain the same.")
with TestRun.step("Unmount core and stop cache."):
core.unmount()
@ -422,7 +438,7 @@ def test_interrupt_cache_mode_switch_delayed(cache_mode, filesystem):
with TestRun.step("Check md5 sum of test file again."):
if test_file_md5sum_before != test_file.md5sum():
TestRun.LOGGER.error(
"Md5 sums before and after interrupting core removal are different.")
"Md5 sums before and after interrupting mode switching are different.")
with TestRun.step("Unmount core device."):
core_part.unmount()
@ -476,9 +492,9 @@ def test_interrupt_cache_stop(cache_mode, filesystem):
with TestRun.step("Start stopping cache."):
flush_pid = TestRun.executor.run_in_background(cli.stop_cmd(str(cache.cache_id)))
sleep(2)
with TestRun.step("Interrupt cache stopping."):
wait_for_flushing(cache, core)
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
while percentage < 50:
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
@ -532,3 +548,14 @@ def create_test_file():
dd.run()
test_file.refresh_item()
return test_file
def wait_for_flushing(cache: Cache, core: Core, timeout: timedelta = timedelta(seconds=30)):
start_time = datetime.now()
while datetime.now() - start_time < timeout:
try:
casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
return
except CmdException:
continue
raise Exception("Management flush not started!")