def test_start_stop_noqueue(pyocf_ctx):
# cache object just to construct cfg conveniently
_cache = Cache(pyocf_ctx.ctx_handle)
cache_handle = c_void_p()
status = pyocf_ctx.lib.ocf_mngt_cache_start(
pyocf_ctx.ctx_handle, byref(cache_handle), byref(_cache.cfg)
)
assert not status, "Failed to start cache: {}".format(status)
# stop without creating mngmt queue
c = OcfCompletion(
[("cache", c_void_p), ("priv", c_void_p), ("error", c_int)]
)
pyocf_ctx.lib.ocf_mngt_cache_stop(cache_handle, c, None)
c.wait()
assert not c.results["error"], "Failed to stop cache: {}".format(c.results["error"])
def test_neg_attach_cls(pyocf_ctx, cm, cls):
"""
Test whether it is possible to change cache line size to
invalid value while attaching cache device
:param pyocf_ctx: basic pyocf context fixture
:param cm: cache mode we start with
:param cls: cache line size we start with
:return:
"""
# Start cache device
cache_device = Volume(S.from_MiB(30))
cache = Cache(owner=cache_device.owner, cache_mode=cm, cache_line_size=cls)
cache.start_cache()
# Check whether it is possible to attach cache device with invalid cache line size
for i in RandomGenerator(DefaultRanges.UINT64):
if i in [item.value for item in CacheLineSize]:
continue
with pytest.raises(OcfError, match="Attaching cache device failed"):
cache.attach_device(cache_device, cache_line_size=i)