def test_example():
"""
Tests a scaled-up version of example.py.
Starts 1-5 Client threads, and scales up the text corpus a bit, proportional
to the number of threads we choose.
"""
global testcount
testcount += 1
port = unique_port(mincemeat.DEFAULT_PORT)
clients = random.randint(1, 5)
scale = clients * 73
# Since we are running multiple asyncore-based Clients and a
# Server in separate threads, we need to specify map={} for the
# Clients, so they all don't use the (default) global asyncore
# socket map as the Server...
logging.info("Starting %d clients...", clients)
for _ in xrange(clients):
c = mincemeat.Client(map={})
t = threading.Timer(1.0,
c.conn,
args=("", port),
kwargs={"password": "******"})
t.daemon = True
t.start()
s = mincemeat.Server(map={})
s.datasource = dict(enumerate(data * scale))
s.mapfn = mapfn
s.reducefn = reducefn
now = mincemeat.timer()
results = s.run_server(password="******", port=port)
expected = dict(
(k, v * scale) for k, v in {
'All': 1,
"Couldn't": 1,
'Dumpty': 2,
'Humpty': 3,
"King's": 2,
'a': 2,
'again': 1,
'all': 1,
'and': 1,
'fall': 1,
'great': 1,
'had': 1,
'horses': 1,
'men': 1,
'on': 1,
'put': 1,
'sat': 1,
'the': 2,
'together': 1,
'wall': 1
}.iteritems())
assert results == expected
def test_example():
"""
Tests a scaled-up version of example.py.
Starts 1-5 Client threads, and scales up the text corpus a bit, proportional
to the number of threads we choose.
"""
global testcount
testcount += 1
port = unique_port( mincemeat.DEFAULT_PORT )
clients = random.randint(1,5)
scale = clients * 73
# Since we are running multiple asyncore-based Clients and a
# Server in separate threads, we need to specify map={} for the
# Clients, so they all don't use the (default) global asyncore
# socket map as the Server...
logging.info("Starting %d clients...", clients)
for _ in xrange(clients):
c = mincemeat.Client(map={})
t = threading.Timer(1.0, c.conn,
args=("", port),
kwargs={"password": "******"})
t.daemon = True
t.start()
s = mincemeat.Server(map={})
s.datasource = dict(enumerate(data * scale))
s.mapfn = mapfn
s.reducefn = reducefn
now = mincemeat.timer()
results = s.run_server(password="******", port=port)
expected = dict((k, v*scale) for k,v in {
'All': 1,
"Couldn't": 1,
'Dumpty': 2,
'Humpty': 3,
"King's": 2,
'a': 2,
'again': 1,
'all': 1,
'and': 1,
'fall': 1,
'great': 1,
'had': 1,
'horses': 1,
'men': 1,
'on': 1,
'put': 1,
'sat': 1,
'the': 2,
'together': 1,
'wall': 1
}.iteritems())
assert results == expected
def test_basic():
"""
Tests basic time and scheduling core functionality.
"""
global testcount
testcount += 1
sch = collections.deque()
# An arbitrarily small repeat interval will result in one triggering
# per cycle, and a sensible future next expiry
now = mincemeat.timer()
exp, mis, pas = mincemeat.next_future_time(
expiry=now - .101, repeat=.01, now=now)
assert near(mis, 10.0)
assert near(pas, .001)
sch.append((now, count, 0.001))
exp = mincemeat.trigger(sch, now=now)
assert counter == 1
assert exp > now
def test_basic():
"""
Tests basic time and scheduling core functionality.
"""
global testcount
testcount += 1
sch = collections.deque()
# An arbitrarily small repeat interval will result in one triggering
# per cycle, and a sensible future next expiry
now = mincemeat.timer()
exp, mis, pas = mincemeat.next_future_time(expiry=now - .101,
repeat=.01,
now=now)
assert near(mis, 10.0)
assert near(pas, .001)
sch.append((now, count, 0.001))
exp = mincemeat.trigger(sch, now=now)
assert counter == 1
assert exp > now
def test_oneshot():
"""
Tests a ONESHOT Server with a pool of Clients.
Starts 1-5 Client threads, and tries to schedule a number of distinct
TaskManager.ONESHOT Map/Reduce Transactions.
Transactions are scheduled in 3 ways;
1) Before Server startup, named "initial-#"
2) From within the Server's, called "scheduled-#"
3) From the Client, called "backchannel-#"
As soon as the deque of Transaction datasources drains, the Server quits.
"""
global testcount
testcount += 1
# Since we are running multiple asyncore-based Clients and a
# Server in separate threads, we need to specify map={} for the
# Clients, so they all don't use the (default) global asyncore
# socket map as the Server...
# First, start up several clients, delayed by a second. This will
# result in several Clients starting at roughly the same time; but they
# won't all be available
clients = random.randint(7, 15)
logging.info("Starting %d clients...", clients)
port = unique_port(mincemeat.DEFAULT_PORT)
class monotonic(object):
base = 0
def value(self):
self.__class__.base += 1
return self.base
def transaction(self, name):
num = self.value()
return {
"datasource":
repeat_command(command="%s-%d%s" % (name, num, {
1: "st",
2: "nd",
3: "rd"
}.get(num % 100 // 10 != 1 and num % 10 or 0, "th"))),
"allocation":
mincemeat.TaskManager.ONESHOT,
}
which = monotonic()
class Cli(mincemeat.Client):
def mapfn(self, k, v):
"""
The Map function simply returns the identity value for whatever
unique key was assigned to the Client.
On every N'th Map request, it sends a command to the Server!
"""
logging.info("%s custom mapfn" % self.name())
yield k, 1
if random.randint(0, 19) == 0:
logging.info("%s sending whatever command!" % (self.name()))
self.send_command("whatever")
class Svr(mincemeat.Server):
def unrecognized_command(self, command, data, txn, chan):
logging.info("%s received command %s from %s" %
(self.name(), command, chan.name()))
self.set_datasource(**which.transaction("backchannel"))
return True
cli = []
for _ in xrange(clients):
c = Cli(map={})
cli.append(c)
t = threading.Timer(1.0,
c.conn,
args=("", port),
kwargs={"password": "******"})
t.daemon = True
t.start()
# Our map function simply returns one key, value from each Client: the
# unique number assigned to the client, mapped to the value 1.
sd = mincemeat.Server_daemon(cls=Svr,
credentials={
"password": "******",
"port": port,
})
# Server's default TaskManager cycle is SINGLEUSE; it will shut down after
# last queued datasource (which specify a cycle of PERMANENT) is complete.
# Switch to PERMANENT; we'll switch back to SINGLEUSE when we want the test
# to end.
sd.endpoint.taskmanager.defaults["cycle"] = mincemeat.TaskManager.PERMANENT
# Set up a number of Map/Reduce Transactions. Each of these will complete
# with whatever number of clients are authenticated by that time. This
# should increase, as we go thru the Transactions...
transactions = random.randint(3, 10)
logging.info("Running %d transactions...", transactions)
for t in xrange(transactions):
sd.endpoint.set_datasource(**which.transaction("initial"))
# Also, schedule a sub-second repeating event to schedule another datasource
# -- from inside the Server event loop. This will test that set_datasource
# doesn't improperly interfere with processing ongoing Transactions, when
# enqueueing another datasource. We should get at least one of these
# scheduled and processed before the Server goes idle and quits...
sd_scheduled = (
mincemeat.timer(),
lambda: sd.endpoint.set_datasource(**which.transaction("scheduled")),
0.75)
sd.endpoint.schedule.append(sd_scheduled)
# Run server 'til all datasources are complete, then check Server's .output
# for multiple results.
sd.start()
state = None
chans = 0
logging.warning("Test starting...")
limit = mincemeat.timer() + 60
stopping = False
while (mincemeat.timer() < limit
and (not sd.endpoint.finished()
or len(sd.endpoint.taskmanager.channels) > 0)):
newchans = len(sd.endpoint.taskmanager.channels)
if newchans != chans:
logging.warning("Server has %2s channels", newchans)
chans = newchans
newstate = sd.endpoint.taskmanager.state
if newstate != state:
logging.warning("Server is %s",
mincemeat.TaskManager.statename[newstate])
state = newstate
time.sleep(.1)
if which.base >= 50 and not stopping:
# Shut down the server. Wait a bit for all the Clients to shut down
# cleanly, just to avoid a "Broken pipe" as they attempt to shut
# down their sockets...
logging.warning("Test completing...")
sd.endpoint.taskmanager.defaults[
"cycle"] = mincemeat.TaskManager.SINGLEUSE
limit = mincemeat.timer() + 10
stopping = True
logging.warning("Test done.")
sd.stop()
expected = {}
length = len(sd.endpoint.output)
assert length >= transactions # At least one "sched-#" processed...
last = None
result = sd.endpoint.results()
while result is not None:
logging.info("Result: %s" % result)
if last is not None:
assert len(result) >= len(last)
last = result
result = sd.endpoint.results()
def test_schedule():
"""
Tests scheduled events.
"""
global testcount
testcount += 1
# Configure the Server to go idle awaiting Transactions, so we can test
# scheduling, and response to manually tearing down the Server.
port = unique_port(mincemeat.DEFAULT_PORT)
cred = credentials.copy()
cred.update({"port": port, "cycle": mincemeat.TaskManager.PERMANENT})
s1 = mincemeat.Server_daemon(credentials=cred)
s1.start()
def put(thing, queue):
logging.info("Putting %s on %s" % (thing, queue))
queue.put(thing)
# Wait 1 second, and put something on 'res' Queue
res = Queue.Queue()
sch = collections.deque()
then = mincemeat.timer() + 1.
sch.append((then, lambda: put(mincemeat.timer(), res), None))
c1 = mincemeat.Client_daemon(credentials=cred, schedule=sch)
beg = mincemeat.timer()
c1.start()
now = mincemeat.timer()
try:
slen = len(sch)
assert slen == 1
# Authentication should take a fraction of a second. This may or may
# not require the scheduling of a .condition_changed wake-up call,
# depending on whether or not authentication is complete by this time!
auth = c1.endpoint.authenticated(timeout=.25)
logging.info("Took %.6fs to authenticate" % (now - beg))
assert now - beg < .25
state = c1.state()
assert auth == True
assert state == "authenticated"
# OK, we should still have a scheduled .condition_changed wake-up
# waiting to fire, and our lambda
for s in sch:
logging.info("event in %.6f s: %s" % (s[0] - mincemeat.timer(), s))
slen = len(sch)
assert slen in (1, 2)
# We should get the scheduled event ~1. second later;
try:
r = res.get(timeout=.5)
except Exception, e:
assert type(e) == Queue.Empty
# It should have timed out within a fraction of a second of the
# intended time, and around 1. second since we started the Client.
r = res.get(timeout=2)
assert abs(r - then) < .1
now = mincemeat.timer()
assert .9 < now - beg < 1.1
# Test tidy shutdown:
# client shutdown -->
# svrchn close -->
# client close
# A tuple of bools compares like a binary number:
# (True, False) > (False, True)
#
svrchn = s1.endpoint.taskmanager.channels.keys()[0]
getstate = lambda number: (c1.endpoint.closed, svrchn.closed, c1.
endpoint.shutdown, number)
cycle = 0
last = getstate(cycle)
cycle += 1
assert last == (False, False, False, 0)
start = now = mincemeat.timer()
svrchn.handle_close = slow(svrchn.handle_close, .05)
logging.info("%s: %s" % (time.ctime(), last))
while (now - start < 1.):
state = getstate(cycle)
cycle += 1
if state[:-1] != last[:-1]:
logging.info("%s: %s" % (time.ctime(), state))
assert state > last
last = state
if not c1.endpoint.shutdown:
c1.endpoint.handle_close()
now = mincemeat.timer()
assert state[:-1] == (True, True, True)
def test_oneshot():
"""
Tests a ONESHOT Server with a pool of Clients.
Starts 1-5 Client threads, and tries to schedule a number of distinct
TaskManager.ONESHOT Map/Reduce Transactions.
Transactions are scheduled in 3 ways;
1) Before Server startup, named "initial-#"
2) From within the Server's, called "scheduled-#"
3) From the Client, called "backchannel-#"
As soon as the deque of Transaction datasources drains, the Server quits.
"""
global testcount
testcount += 1
# Since we are running multiple asyncore-based Clients and a
# Server in separate threads, we need to specify map={} for the
# Clients, so they all don't use the (default) global asyncore
# socket map as the Server...
# First, start up several clients, delayed by a second. This will
# result in several Clients starting at roughly the same time; but they
# won't all be available
clients = random.randint(7,15)
logging.info("Starting %d clients...", clients)
port = unique_port( mincemeat.DEFAULT_PORT )
class monotonic(object):
base = 0
def value(self):
self.__class__.base += 1
return self.base
def transaction(self, name):
num = self.value()
return {
"datasource": repeat_command( command="%s-%d%s" % (
name, num,
{1:"st", 2:"nd", 3:"rd"}.get(
num % 100 // 10 != 1 and num % 10 or 0, "th"))),
"allocation": mincemeat.TaskManager.ONESHOT,
}
which = monotonic()
class Cli(mincemeat.Client):
def mapfn( self, k, v ):
"""
The Map function simply returns the identity value for whatever
unique key was assigned to the Client.
On every N'th Map request, it sends a command to the Server!
"""
logging.info( "%s custom mapfn" % self.name() )
yield k, 1
if random.randint( 0, 19 ) == 0:
logging.info("%s sending whatever command!" % (
self.name() ))
self.send_command( "whatever" )
class Svr(mincemeat.Server):
def unrecognized_command( self, command, data, txn, chan ):
logging.info("%s received command %s from %s" % (
self.name(), command, chan.name() ))
self.set_datasource( **which.transaction( "backchannel" ))
return True
cli = []
for _ in xrange(clients):
c = Cli(map={})
cli.append(c)
t = threading.Timer(1.0, c.conn,
args=("", port),
kwargs={"password": "******"})
t.daemon = True
t.start()
# Our map function simply returns one key, value from each Client: the
# unique number assigned to the client, mapped to the value 1.
sd = mincemeat.Server_daemon( cls=Svr,
credentials={
"password": "******",
"port": port,
})
# Server's default TaskManager cycle is SINGLEUSE; it will shut down after
# last queued datasource (which specify a cycle of PERMANENT) is complete.
# Switch to PERMANENT; we'll switch back to SINGLEUSE when we want the test
# to end.
sd.endpoint.taskmanager.defaults["cycle"] = mincemeat.TaskManager.PERMANENT
# Set up a number of Map/Reduce Transactions. Each of these will complete
# with whatever number of clients are authenticated by that time. This
# should increase, as we go thru the Transactions...
transactions = random.randint( 3, 10 )
logging.info( "Running %d transactions...", transactions )
for t in xrange(transactions):
sd.endpoint.set_datasource( **which.transaction( "initial" ))
# Also, schedule a sub-second repeating event to schedule another datasource
# -- from inside the Server event loop. This will test that set_datasource
# doesn't improperly interfere with processing ongoing Transactions, when
# enqueueing another datasource. We should get at least one of these
# scheduled and processed before the Server goes idle and quits...
sd_scheduled = ( mincemeat.timer(),
lambda: sd.endpoint.set_datasource(
**which.transaction( "scheduled" )),
0.75 )
sd.endpoint.schedule.append( sd_scheduled )
# Run server 'til all datasources are complete, then check Server's .output
# for multiple results.
sd.start()
state = None
chans = 0
logging.warning("Test starting...")
limit = mincemeat.timer() + 60
stopping = False
while ( mincemeat.timer() < limit
and (not sd.endpoint.finished()
or len(sd.endpoint.taskmanager.channels) > 0 )):
newchans = len(sd.endpoint.taskmanager.channels)
if newchans != chans:
logging.warning("Server has %2s channels", newchans)
chans = newchans
newstate = sd.endpoint.taskmanager.state
if newstate != state:
logging.warning("Server is %s", mincemeat.TaskManager.statename[newstate])
state = newstate
time.sleep(.1)
if which.base >= 50 and not stopping:
# Shut down the server. Wait a bit for all the Clients to shut down
# cleanly, just to avoid a "Broken pipe" as they attempt to shut
# down their sockets...
logging.warning("Test completing...")
sd.endpoint.taskmanager.defaults["cycle"] = mincemeat.TaskManager.SINGLEUSE
limit = mincemeat.timer() + 10
stopping = True
logging.warning("Test done.")
sd.stop()
expected = {}
length = len(sd.endpoint.output)
assert length >= transactions # At least one "sched-#" processed...
last = None
result = sd.endpoint.results()
while result is not None:
logging.info("Result: %s" % result)
if last is not None:
assert len(result) >= len(last)
last = result
result = sd.endpoint.results()
def test_schedule():
"""
Tests scheduled events.
"""
global testcount
testcount += 1
# Configure the Server to go idle awaiting Transactions, so we can test
# scheduling, and response to manually tearing down the Server.
port = unique_port( mincemeat.DEFAULT_PORT )
cred = credentials.copy()
cred.update({
"port": port,
"cycle": mincemeat.TaskManager.PERMANENT
})
s1 = mincemeat.Server_daemon(credentials=cred)
s1.start()
def put(thing, queue):
logging.info("Putting %s on %s" % (thing, queue))
queue.put(thing)
# Wait 1 second, and put something on 'res' Queue
res = Queue.Queue()
sch = collections.deque()
then = mincemeat.timer() + 1.
sch.append((then, lambda: put(mincemeat.timer(), res), None))
c1 = mincemeat.Client_daemon(credentials=cred, schedule=sch)
beg = mincemeat.timer()
c1.start()
now = mincemeat.timer()
try:
slen = len(sch); assert slen == 1
# Authentication should take a fraction of a second. This may or may
# not require the scheduling of a .condition_changed wake-up call,
# depending on whether or not authentication is complete by this time!
auth = c1.endpoint.authenticated(timeout=.25)
logging.info("Took %.6fs to authenticate" % ( now - beg ))
assert now - beg < .25
state = c1.state()
assert auth == True
assert state == "authenticated"
# OK, we should still have a scheduled .condition_changed wake-up
# waiting to fire, and our lambda
for s in sch:
logging.info("event in %.6f s: %s" % (s[0] - mincemeat.timer(), s))
slen = len(sch); assert slen in (1,2)
# We should get the scheduled event ~1. second later;
try:
r = res.get(timeout=.5)
except Exception, e:
assert type(e) == Queue.Empty
# It should have timed out within a fraction of a second of the
# intended time, and around 1. second since we started the Client.
r = res.get(timeout=2)
assert abs(r-then) < .1
now = mincemeat.timer()
assert .9 < now-beg < 1.1
# Test tidy shutdown:
# client shutdown -->
# svrchn close -->
# client close
# A tuple of bools compares like a binary number:
# (True, False) > (False, True)
#
svrchn = s1.endpoint.taskmanager.channels.keys()[0]
getstate = lambda number: (c1.endpoint.closed,
svrchn.closed,
c1.endpoint.shutdown,
number)
cycle = 0
last = getstate(cycle); cycle += 1
assert last == (False, False, False, 0)
start = now = mincemeat.timer()
svrchn.handle_close = slow(svrchn.handle_close, .05)
logging.info("%s: %s" % (time.ctime(), last))
while ( now - start < 1. ):
state = getstate(cycle); cycle += 1
if state[:-1] != last[:-1]:
logging.info("%s: %s" % (time.ctime(), state))
assert state > last
last = state
if not c1.endpoint.shutdown:
c1.endpoint.handle_close()
now = mincemeat.timer()
assert state[:-1] == (True, True, True)
