def find_key_with_modulus(modulus, count):
TRIES_LIMIT=1000
for i in range(0, TRIES_LIMIT):
key = str(i)
if (node.node_hash(key) % count == modulus):
return key
raise Exception("Could not generate an appropriate key")
def key_ranked(*args):
modulus = args[0]
long_max_digit = 100000000000000000000000000000000000000L
TRIES_LIMIT=1000
for i in range(0, TRIES_LIMIT):
key = str(i)
if (node.node_hash(key) / long_max_digit == modulus):
return key
raise Exception("Could not generate an appropriate key")
def test_node_hash_to_number(self):
numeric_hash = node.node_hash("hello world!")
self.assertTrue(isinstance(numeric_hash, (int,long)),
"Expected hash to be numeric (int or long). Got %s: '%s'" %
(type(numeric_hash), numeric_hash) )
def hash_modulus(key, node_count):
return node.node_hash(key) % node_count
def test_node_hash_same_string_same_hash(self):
hash_a = node.node_hash("hello world!")
hash_b = node.node_hash("hello"+ " world!")
self.assertEqual(hash_a, hash_b)
def test_rank(self):
nd = node.NodeDescriptor(ip_port="127.0.0.1:8000")
self.assertEqual(nd.rank, node.node_hash("127.0.0.1:8000"))
self.assertEqual(nd.rank, 102808487155392830909659332955855849052L)
