98cb9bff70
As amount of fixed size metadata allocated by OCF grows, we need to adjust test to not try to start cache on device that is too small. Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
87 lines
2.2 KiB
Python
87 lines
2.2 KiB
Python
#
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# Copyright(c) 2019-2021 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause
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#
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import pytest
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from ctypes import c_int
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from pyocf.types.cache import Cache
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from pyocf.types.core import Core
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from pyocf.types.volume import Volume, ErrorDevice
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from pyocf.types.data import Data
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from pyocf.types.io import IoDir
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from pyocf.utils import Size as S
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from pyocf.types.shared import OcfError, OcfCompletion
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def test_ctx_fixture(pyocf_ctx):
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pass
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def test_simple_wt_write(pyocf_ctx):
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cache_device = Volume(S.from_MiB(50))
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core_device = Volume(S.from_MiB(50))
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cache = Cache.start_on_device(cache_device)
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core = Core.using_device(core_device)
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cache.add_core(core)
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cache_device.reset_stats()
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core_device.reset_stats()
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write_data = Data.from_string("This is test data")
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io = core.new_io(cache.get_default_queue(), S.from_sector(1).B,
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write_data.size, IoDir.WRITE, 0, 0)
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io.set_data(write_data)
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cmpl = OcfCompletion([("err", c_int)])
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io.callback = cmpl.callback
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io.submit()
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cmpl.wait()
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assert cmpl.results["err"] == 0
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assert cache_device.get_stats()[IoDir.WRITE] == 1
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stats = cache.get_stats()
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assert stats["req"]["wr_full_misses"]["value"] == 1
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assert stats["usage"]["occupancy"]["value"] == 1
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assert core.exp_obj_md5() == core_device.md5()
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cache.stop()
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def test_start_corrupted_metadata_lba(pyocf_ctx):
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cache_device = ErrorDevice(S.from_MiB(50), error_sectors=set([0]))
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with pytest.raises(OcfError, match="OCF_ERR_WRITE_CACHE"):
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cache = Cache.start_on_device(cache_device)
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def test_load_cache_no_preexisting_data(pyocf_ctx):
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cache_device = Volume(S.from_MiB(50))
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with pytest.raises(OcfError, match="OCF_ERR_NO_METADATA"):
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cache = Cache.load_from_device(cache_device)
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def test_load_cache(pyocf_ctx):
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cache_device = Volume(S.from_MiB(50))
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cache = Cache.start_on_device(cache_device)
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cache.stop()
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cache = Cache.load_from_device(cache_device)
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def test_load_cache_recovery(pyocf_ctx):
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cache_device = Volume(S.from_MiB(50))
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cache = Cache.start_on_device(cache_device)
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device_copy = cache_device.get_copy()
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cache.stop()
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cache = Cache.load_from_device(device_copy)
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