def make_env(self,
sd_type='block',
format='raw',
prealloc=sc.SPARSE_VOL,
chain_len=2):
size = 2 * GiB
base_fmt = sc.name2type(format)
with fake_env(sd_type) as env:
with MonkeyPatch().context() as mp:
mp.setattr(guarded, 'context', fake_guarded_context())
mp.setattr(merge, 'sdCache', env.sdcache)
mp.setattr(blockVolume, 'rm', FakeResourceManager())
mp.setattr(image, 'Image', FakeImage)
env.chain = make_qemu_chain(env,
size,
base_fmt,
chain_len,
prealloc=prealloc)
volumes = {(vol.imgUUID, vol.volUUID): FakeVolume()
for vol in env.chain}
env.sdcache.domains[env.sd_manifest.sdUUID].volumes = volumes
def fake_chain(self, sdUUID, imgUUID, volUUID=None):
return env.chain
image.Image.getChain = fake_chain
image.Image.syncVolumeChain = FakeSyncVolumeChain()
yield env
def make_env(self, sd_type='block', format='raw', chain_len=2):
size = 1048576
base_fmt = sc.name2type(format)
with fake_env(sd_type) as env:
rm = FakeResourceManager()
with MonkeyPatchScope([
(guarded, 'context', fake_guarded_context()),
(merge, 'sdCache', env.sdcache),
(blockVolume, 'rm', rm),
(image, 'Image', FakeImage),
]):
env.chain = make_qemu_chain(env, size, base_fmt, chain_len)
volumes = {(vol.imgUUID, vol.volUUID): FakeVolume()
for vol in env.chain}
env.sdcache.domains[env.sd_manifest.sdUUID].volumes = volumes
def fake_chain(self, sdUUID, imgUUID, volUUID=None):
return env.chain
image.Image.getChain = fake_chain
image.Image.syncVolumeChain = FakeSyncVolumeChain()
yield env
def test_produce_existing_volume(self):
fake_vol = FakeVolume()
sd = FakeSD("fake manifest")
sd.volumes = {("img_uuid", "vol_uuid"): fake_vol}
vol = sd.produceVolume("img_uuid", "vol_uuid")
self.assertIs(vol, fake_vol)