def testCloneVDI(self):
self.assertTrue(fixture.CreateVDI("alpha", 4 * (1024**2)))
alpha = filter(lambda x: x["name"] == "alpha", fixture.ListVDI())
self.assertEquals(1, len(alpha))
alpha = alpha[0]
self.assertEquals(4 * (1024**2), alpha["nb_size"])
contentToWrite = os.urandom(4 * (1024**2))
self.assertEquals(4 * (1024**2), len(contentToWrite))
self.assertTrue(fixture.WriteVDI("alpha", contentToWrite))
self.assertTrue(fixture.SnapshotVDI("alpha", "alpha_1"))
self.assertTrue(fixture.CloneVDI("alpha", "alpha_1", "bravo"))
pred = lambda x: x["cloned"] and x["name"] == "bravo"
self.assertEquals(1, len(filter(pred, fixture.ListVDI())))
self.assertTrue(fixture.WriteVDI("alpha", os.urandom(4 * (1024**2))))
contentRead = fixture.ReadVDI("bravo")
self.assertEquals(4 * (1024**2), len(contentRead))
expected = hashlib.md5(contentToWrite).digest()
actual = hashlib.md5(contentRead).digest()
self.assertEquals(expected, actual)
self.assertTrue(fixture.DeleteVDI("alpha", "alpha_1"))
self.assertTrue(fixture.DeleteVDI("alpha"))
self.assertTrue(fixture.WriteVDI("bravo", os.urandom(4 * (1024**2))))
self.assertTrue(fixture.DeleteVDI("bravo"))
def testReadObjOffset(self):
NB_OBJECT = 1 << 22
NB_SUBOBJECT = NB_OBJECT / 4
assert NB_OBJECT % NB_SUBOBJECT == 0
self.assertTrue(fixture.CreateVDI("alpha", NB_OBJECT))
alpha = self._assertUniqueName("alpha", fixture.ListVDI())
self.assertEqual(NB_OBJECT, alpha["nb_size"])
a_vid = alpha["vdi_id"]
oid = a_vid << 32
contentToWrite = os.urandom(NB_OBJECT)
self.assertEqual(NB_OBJECT, len(contentToWrite))
self.assertTrue(fixture.WriteVDI("alpha", contentToWrite))
for p in self.__class__._ports:
client = sheep.SheepdogClient(port=p)
for i in range(NB_OBJECT / NB_SUBOBJECT):
s = NB_SUBOBJECT * i
e = NB_SUBOBJECT * (i + 1)
response = client.read_obj(oid, s, NB_SUBOBJECT)
contentRead = response.data
self.assertEqual(NB_SUBOBJECT, len(contentRead))
expected = hashlib.md5(contentToWrite[s:e]).digest()
actual = hashlib.md5(contentRead).digest()
self.assertEqual(expected, actual)
def testWriteAndReadVDI(self):
self.assertTrue(fixture.CreateVDI("alpha", 4 * (1024**2)))
alpha = filter(lambda x: x["name"] == "alpha", fixture.ListVDI())
self.assertEquals(1, len(alpha))
alpha = alpha[0]
self.assertEquals(4 * (1024**2), alpha["nb_size"])
contentToWrite = os.urandom(4 * (1024**2))
self.assertEquals(4 * (1024**2), len(contentToWrite))
self.assertTrue(fixture.WriteVDI("alpha", contentToWrite))
contentRead = fixture.ReadVDI("alpha")
self.assertEquals(4 * (1024**2), len(contentRead))
expected = hashlib.md5(contentToWrite).digest()
actual = hashlib.md5(contentRead).digest()
self.assertEquals(expected, actual)
def _assertMakeZero(self, vdi_name, data_size):
data = ''.zfill(data_size)
self.assertEqual(data_size, len(data))
self.assertTrue(fixture.WriteVDI(vdi_name, data))
return data
def _assertMakeRandom(self, vdi_name, data_size):
data = os.urandom(data_size)
self.assertEqual(data_size, len(data))
self.assertTrue(fixture.WriteVDI(vdi_name, data))
return data