260 lines
8.9 KiB
Python
260 lines
8.9 KiB
Python
"""
|
|
|
|
EXPERIMENTAL dsession session (for dist/non-dist unification)
|
|
|
|
"""
|
|
|
|
import py
|
|
from py.__.test import event
|
|
from py.__.test.runner import basic_run_report, basic_collect_report
|
|
from py.__.test.session import Session
|
|
from py.__.test import outcome
|
|
from py.__.test.dist.nodemanage import NodeManager
|
|
|
|
import Queue
|
|
|
|
class LoopState(object):
|
|
def __init__(self, dsession, colitems):
|
|
self.dsession = dsession
|
|
self.colitems = colitems
|
|
self.exitstatus = None
|
|
# loopstate.dowork is False after reschedule events
|
|
# because otherwise we might very busily loop
|
|
# waiting for a host to become ready.
|
|
self.dowork = True
|
|
self.shuttingdown = False
|
|
self.testsfailed = False
|
|
|
|
def pyevent_itemtestreport(self, event):
|
|
if event.colitem in self.dsession.item2nodes:
|
|
self.dsession.removeitem(event.colitem, event.node)
|
|
if event.failed:
|
|
self.testsfailed = True
|
|
|
|
def pyevent_collectionreport(self, event):
|
|
if event.passed:
|
|
self.colitems.extend(event.result)
|
|
|
|
def pyevent_testnodeready(self, node):
|
|
self.dsession.addnode(node)
|
|
|
|
def pyevent_testnodedown(self, node, error=None):
|
|
pending = self.dsession.removenode(node)
|
|
if pending:
|
|
crashitem = pending[0]
|
|
self.dsession.handle_crashitem(crashitem, node)
|
|
self.colitems.extend(pending[1:])
|
|
|
|
def pyevent_rescheduleitems(self, event):
|
|
self.colitems.extend(event.items)
|
|
self.dowork = False # avoid busywait
|
|
|
|
class DSession(Session):
|
|
"""
|
|
Session drives the collection and running of tests
|
|
and generates test events for reporters.
|
|
"""
|
|
MAXITEMSPERHOST = 15
|
|
|
|
def __init__(self, config):
|
|
self.queue = Queue.Queue()
|
|
self.node2pending = {}
|
|
self.item2nodes = {}
|
|
super(DSession, self).__init__(config=config)
|
|
|
|
def pytest_configure(self, __call__, config):
|
|
__call__.execute()
|
|
try:
|
|
config.getxspecs()
|
|
except config.Error:
|
|
print
|
|
raise config.Error("dist mode %r needs test execution environments, "
|
|
"none found." %(config.option.dist))
|
|
|
|
def main(self, colitems=None):
|
|
colitems = self.getinitialitems(colitems)
|
|
self.sessionstarts()
|
|
self.setup()
|
|
exitstatus = self.loop(colitems)
|
|
self.teardown()
|
|
self.sessionfinishes()
|
|
return exitstatus
|
|
|
|
def loop_once(self, loopstate):
|
|
if loopstate.shuttingdown:
|
|
return self.loop_once_shutdown(loopstate)
|
|
colitems = loopstate.colitems
|
|
if loopstate.dowork and colitems:
|
|
self.triggertesting(loopstate.colitems)
|
|
colitems[:] = []
|
|
# we use a timeout here so that control-C gets through
|
|
while 1:
|
|
try:
|
|
eventcall = self.queue.get(timeout=2.0)
|
|
break
|
|
except Queue.Empty:
|
|
continue
|
|
loopstate.dowork = True
|
|
|
|
eventname, args, kwargs = eventcall
|
|
self.bus.notify(eventname, *args, **kwargs)
|
|
|
|
# termination conditions
|
|
if ((loopstate.testsfailed and self.config.option.exitfirst) or
|
|
(not self.item2nodes and not colitems and not self.queue.qsize())):
|
|
self.triggershutdown()
|
|
loopstate.shuttingdown = True
|
|
elif not self.node2pending:
|
|
loopstate.exitstatus = outcome.EXIT_NOHOSTS
|
|
|
|
def loop_once_shutdown(self, loopstate):
|
|
# once we are in shutdown mode we dont send
|
|
# events other than HostDown upstream
|
|
eventname, args, kwargs = self.queue.get()
|
|
if eventname == "testnodedown":
|
|
node, error = args[0], args[1]
|
|
self.bus.notify("testnodedown", node, error)
|
|
self.removenode(node)
|
|
if not self.node2pending:
|
|
# finished
|
|
if loopstate.testsfailed:
|
|
loopstate.exitstatus = outcome.EXIT_TESTSFAILED
|
|
else:
|
|
loopstate.exitstatus = outcome.EXIT_OK
|
|
#self.config.bus.unregister(loopstate)
|
|
|
|
def _initloopstate(self, colitems):
|
|
loopstate = LoopState(self, colitems)
|
|
self.config.bus.register(loopstate)
|
|
return loopstate
|
|
|
|
def loop(self, colitems):
|
|
try:
|
|
loopstate = self._initloopstate(colitems)
|
|
loopstate.dowork = False # first receive at least one HostUp events
|
|
while 1:
|
|
self.loop_once(loopstate)
|
|
if loopstate.exitstatus is not None:
|
|
exitstatus = loopstate.exitstatus
|
|
break
|
|
except KeyboardInterrupt:
|
|
exitstatus = outcome.EXIT_INTERRUPTED
|
|
except:
|
|
self.bus.notify("internalerror", event.InternalException())
|
|
exitstatus = outcome.EXIT_INTERNALERROR
|
|
self.config.bus.unregister(loopstate)
|
|
if exitstatus == 0 and self._testsfailed:
|
|
exitstatus = outcome.EXIT_TESTSFAILED
|
|
return exitstatus
|
|
|
|
def triggershutdown(self):
|
|
for node in self.node2pending:
|
|
node.shutdown()
|
|
|
|
def addnode(self, node):
|
|
assert node not in self.node2pending
|
|
self.node2pending[node] = []
|
|
|
|
def removenode(self, node):
|
|
try:
|
|
pending = self.node2pending.pop(node)
|
|
except KeyError:
|
|
# this happens if we didn't receive a testnodeready event yet
|
|
return []
|
|
for item in pending:
|
|
l = self.item2nodes[item]
|
|
l.remove(node)
|
|
if not l:
|
|
del self.item2nodes[item]
|
|
return pending
|
|
|
|
def triggertesting(self, colitems):
|
|
colitems = self.filteritems(colitems)
|
|
senditems = []
|
|
for next in colitems:
|
|
if isinstance(next, py.test.collect.Item):
|
|
senditems.append(next)
|
|
else:
|
|
self.bus.notify("collectionstart", event.CollectionStart(next))
|
|
self.queueevent("collectionreport", basic_collect_report(next))
|
|
self.senditems(senditems)
|
|
#self.senditems_each(senditems)
|
|
|
|
def queueevent(self, eventname, *args, **kwargs):
|
|
self.queue.put((eventname, args, kwargs))
|
|
|
|
def senditems_each(self, tosend):
|
|
if not tosend:
|
|
return
|
|
room = self.MAXITEMSPERHOST
|
|
for node, pending in self.node2pending.items():
|
|
room = min(self.MAXITEMSPERHOST - len(pending), room)
|
|
sending = tosend[:room]
|
|
for node, pending in self.node2pending.items():
|
|
node.sendlist(sending)
|
|
pending.extend(sending)
|
|
for item in sending:
|
|
self.item2nodes.setdefault(item, []).append(node)
|
|
self.bus.notify("itemstart", item, node)
|
|
tosend[:] = tosend[room:] # update inplace
|
|
if tosend:
|
|
# we have some left, give it to the main loop
|
|
self.queueevent("rescheduleitems", event.RescheduleItems(tosend))
|
|
|
|
def senditems(self, tosend):
|
|
if not tosend:
|
|
return
|
|
for node, pending in self.node2pending.items():
|
|
room = self.MAXITEMSPERHOST - len(pending)
|
|
if room > 0:
|
|
sending = tosend[:room]
|
|
node.sendlist(sending)
|
|
for item in sending:
|
|
#assert item not in self.item2node, (
|
|
# "sending same item %r to multiple "
|
|
# "not implemented" %(item,))
|
|
self.item2nodes.setdefault(item, []).append(node)
|
|
self.bus.notify("itemstart", item, node)
|
|
pending.extend(sending)
|
|
tosend[:] = tosend[room:] # update inplace
|
|
if not tosend:
|
|
break
|
|
if tosend:
|
|
# we have some left, give it to the main loop
|
|
self.queueevent("rescheduleitems", event.RescheduleItems(tosend))
|
|
|
|
def removeitem(self, item, node):
|
|
if item not in self.item2nodes:
|
|
raise AssertionError(item, self.item2nodes)
|
|
nodes = self.item2nodes[item]
|
|
nodes.remove(node)
|
|
if not nodes:
|
|
del self.item2nodes[item]
|
|
self.node2pending[node].remove(item)
|
|
|
|
def handle_crashitem(self, item, node):
|
|
longrepr = "!!! Node %r crashed during running of test %r" %(node, item)
|
|
rep = event.ItemTestReport(item, when="???", excinfo=longrepr)
|
|
rep.node = node
|
|
self.bus.notify("itemtestreport", rep)
|
|
|
|
def setup(self):
|
|
""" setup any neccessary resources ahead of the test run. """
|
|
self.nodemanager = NodeManager(self.config)
|
|
self.nodemanager.setup_nodes(putevent=self.queue.put)
|
|
|
|
def teardown(self):
|
|
""" teardown any resources after a test run. """
|
|
self.nodemanager.teardown_nodes()
|
|
|
|
# debugging function
|
|
def dump_picklestate(item):
|
|
l = []
|
|
while 1:
|
|
state = item.__getstate__()
|
|
l.append(state)
|
|
item = state[-1]
|
|
if len(state) != 2:
|
|
break
|
|
return l
|