quick test of carbon ConsistentHashingRouter order

test_carbon_ring.py

#!/usr/local/bin/python
import carbon.routers
from pprint import pprint
import string
import random

this = carbon.routers.ConsistentHashingRouter()
this.addDestination(("4.4.4.4", 2003, 1))
this.addDestination(("3.3.3.3", 2003, 1))
this.addDestination(("2.2.2.2", 2003, 1))
this.addDestination(("1.1.1.1", 2003, 1))
this.addDestination(("::1", 2003, 1))
this.addDestination(("unresolvedhostname", 2003, 1))

that = carbon.routers.ConsistentHashingRouter()
that.addDestination(("unresolvedhostname", 2003, 1))
that.addDestination(("::1", 2003, 1))
that.addDestination(("1.1.1.1", 2003, 1))
that.addDestination(("2.2.2.2", 2003, 1))
that.addDestination(("3.3.3.3", 2003, 1))
that.addDestination(("4.4.4.4", 2003, 1))

def str_gen(size=4, chars=string.ascii_lowercase):
    return ''.join(random.choice(chars) for _ in range(size))

for n in range(100):
    metric = str_gen()
    for server, port, instance in this.getDestinations(metric):
        thishost = server
    for server, port, instance in that.getDestinations(metric):
        thathost = server
    if thishost != thathost:
        print "failed %s != %s" % (thishost, thathost)