/usr/share/pyshared/insanity/testrun.py is in python-insanity 0.0+git20110920.4750a8e8-2.
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#
# testrun.py
#
# Copyright (c) 2007, Edward Hervey <bilboed@bilboed.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
"""
Test runs
A TestRun is the execution of one or more tests/scenarios with various
arguments.
It will also collect the state of the environment.
The smallest TestRun is a single test without any arguments nor any
monitors.
Tests have access to the TestRun within which they are being executed
so they can look for results of other tests.
Access to the TestRun from test instances will be possible via DBus IPC.
"""
import gobject
import time
import dbus.gobject_service
import tempfile
import os
from insanity.log import error, warning, debug, info
from insanity.test import Test
from insanity.arguments import Arguments
import insanity.environment as environment
import insanity.dbustools as dbustools
##
## TODO/FIXME
##
## Add possibility to add/modify/remove env variables
## This will be needed to run test with different environments
## WITHOUT having to restart the daemon.
class TestRun(gobject.GObject):
"""
A TestRun is the execution of one or more tests/scenarios with various
arguments.
It will also collect the state of the environment.
The smallest TestRun is a single test without any arguments nor any
monitors.
Tests have access to the TestRun within which they are being executed
so they can look for results of other tests.
Access to the TestRun from test instances will be possible via DBus IPC.
"""
__gsignals__ = {
"start" : (gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
()),
"done" : (gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
()),
"aborted" : (gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
( )),
# a test started/ended
# Warning, it is not automatically a SingleTest
"single-test-done" : (gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
(gobject.TYPE_PYOBJECT, )),
"single-test-start" : (gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
(gobject.TYPE_PYOBJECT, )),
# new-remote-test (uuid)
# emitted when a new test has appeared on the private bus
"new-remote-test" : (gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
(gobject.TYPE_STRING, )),
"removed-remote-test" : (gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
(gobject.TYPE_STRING, ))
}
def __init__(self, maxnbtests=1, workingdir=None, env=None, clientid=None):
"""
maxnbtests : Maximum number of tests to run simultaneously in each batch.
workingdir : Working directory (default : getcwd() + /workingdir/)
env : extra environment variables
"""
gobject.GObject.__init__(self)
# dbus
self._bus = None
self._bus_address = None
self._dbusobject = None
self._dbusiface = None
self._setupPrivateBus()
self._tests = [] # list of (test, arguments, monitors)
self._storage = None
self._currenttest = None
self._currentmonitors = None
self._currentarguments = None
self._runninginstances = []
self._maxnbtests = maxnbtests
self._starttime = None
self._stoptime = None
self._clientid = clientid
# disambiguation
# _environment are the environment information
# _environ are the environment variables (env)
self._environment = {}
self._env = os.environ.copy()
if env:
self._env.update(env)
self._running = False
self.setWorkingDirectory(workingdir or os.path.join(os.getcwd(), "workingdir"))
## PUBLIC API
def run(self):
"""
Start executing the tests.
"""
if self._running:
error("TestRun is already running")
return
self._collectEnvironment()
def abort(self):
"""
Abort the tests execution.
"""
# TODO : fill
for test in self._runninginstances:
test.stop()
self.emit("aborted")
def setStorage(self, storage):
"""
Use the given storage for this TestRun
"""
self._storage = storage
def addTest(self, test, arguments, monitors=None):
"""
Adds test with the given arguments (or generator) and monitors
to the list of tests to be run
monitors are a list of tuples containing:
* the monitor class
* (optional) the arguments to use on that monitor
"""
if not isinstance(test, type) and not issubclass(test, Test):
raise TypeError("Given test is not a Test object !")
# arguments NEED to be an Arguments object or a dictionnary
if isinstance(arguments, dict):
# convert dictionnary to Arguments
info("Creating Arguments for %r" % arguments)
arguments = Arguments(**arguments)
elif not isinstance(arguments, Arguments):
raise TypeError("Test arguments need to be of type Arguments or dict")
self._tests.append((test, arguments, monitors))
def getEnvironment(self):
"""
Returns the environment information of this testrun as a
dictionnary.
"""
return self._environment
## PRIVATE API
def _setupPrivateBus(self):
self._bus = dbustools.get_private_session_bus()
self._bus_address = dbustools.get_private_bus_address()
self._dbusobject = self._bus.get_object("org.freedesktop.DBus",
"/org/freedesktop/DBus")
self._dbusiface = dbus.Interface(self._dbusobject,
"org.freedesktop.DBus")
self._dbusiface.connect_to_signal("NameOwnerChanged",
self._dbusNameOwnerChangedSignal)
def _dbusNameOwnerChangedSignal(self, name, oldowner, newowner):
# we only care about connections named net.gstreamer.Insanity.RemotePythonRunner.xxx
info("name:%s , oldowner:%s, newowner:%s" % (name, oldowner, newowner))
if not name.startswith("net.gstreamer.Insanity.RemotePythonRunner.RemotePythonRunner"):
return
# extract uuid
uuid = name.rsplit('.RemotePythonRunner', 1)[-1]
if newowner == "":
self.emit("removed-remote-test", uuid)
elif oldowner == "":
self.emit("new-remote-test", uuid)
def _collectEnvironment(self):
"""
Collect the environment settings, parameters, variables,...
"""
# we specify our own registry
path = self.get_temp_file(nameid="registry", category="testrun")[1]
self._env["GST_REGISTRY"] = path
environment.collectEnvironment(self._env, self._gotEnvironment)
def _gotEnvironment(self, resdict):
info("Got environment %r", resdict)
self._environment = resdict
self.emit("start")
self._starttime = int(time.time())
self._storage.startNewTestRun(self, self._clientid)
self._runNextBatch()
def _singleTestStart(self, test):
info("test %r started", test)
self.emit("single-test-start", test)
self._storage.newTestStarted(self, test)
def _singleTestDone(self, test):
info("Done with test %r , success rate %02f%%",
test, test.getSuccessPercentage())
self.emit("single-test-done", test)
# FIXME : Improvement : disconnect all signals from that test
if test in self._runninginstances:
self._runninginstances.remove(test)
self._storage.newTestFinished(self, test)
self._runNext()
def _singleTestCheck(self, test, check, validate):
pass
def _runNext(self):
""" Run the next test+arg+monitor combination """
if len(self._runninginstances) >= self._maxnbtests:
warning("We were already running the max number of tests")
return False
info("Getting next test arguments for this batch")
try:
kwargs = self._currentarguments.next()
except StopIteration:
if len(self._runninginstances):
info("No more arguments, but still a test running")
return False
info("No more arguments, we're finished with this batch")
self._runNextBatch()
return False
# grab the next arguments
testclass = self._currenttest
monitors = self._currentmonitors
# create test with arguments
debug("Creating test %r with arguments %r" % (testclass, kwargs))
test = testclass(testrun=self, bus=self._bus,
bus_address=self._bus_address,
**kwargs)
if monitors:
for monitor in monitors:
test.addMonitor(*monitor)
test.connect("start", self._singleTestStart)
test.connect("done", self._singleTestDone)
test.connect("check", self._singleTestCheck)
# start test
allok = test.run()
if allok:
# add instance to running tests
self._runninginstances.append(test)
warning("Just added a test %d/%d", len(self._runninginstances), self._maxnbtests)
# if we can still create a new test, call ourself again
if len(self._runninginstances) < self._maxnbtests:
warning("still more test to run (current:%d/max:%d)",
len(self._runninginstances), self._maxnbtests)
gobject.idle_add(self._runNext)
return False
def _runNextBatch(self):
""" Runs the next test batch """
if len(self._tests) == 0:
# if nothing left, stop
info("No more tests batch to run, we're done")
self._stoptime = int(time.time())
self._storage.endTestRun(self)
self._running = False
self.emit("done")
return False
info("Getting next test batch")
# pop out the next batch
test, args, monitors = self._tests.pop(0)
self._currenttest = test
self._currentmonitors = monitors
self._currentarguments = args
info("Current test : %r" % test)
info("Current monitors : %r" % monitors)
info("Current arguments : %r" % args)
# and run the first one of that batch
self._runNext()
return False
def getCurrentBatchPosition(self):
"""
Returns the position (index) in the current batch.
"""
if self._currentarguments:
return self._currentarguments.current()
return 0
def getCurrentBatchLength(self):
"""
Returns the size of the current batch.
"""
if self._currentarguments:
return len(self._currentarguments)
return 0
def getWorkingDirectory(self):
"""
Returns the currently configured working directory for this
TestRun.
"""
return self._workingdir
def setWorkingDirectory(self, workdir):
"""
Change the working directory. This can only be called when the
TestRun isn't running.
Creates the directories if they are not present.
Returns True if the working directory was properly changed.
Returns False if self is running.
"""
if self._running:
return False
debug("Changing workdir to %s", workdir)
self._workingdir = workdir
self._outputdir = os.path.join(self._workingdir, "outputfiles")
# ensure directories exist
if not os.path.exists(self._outputdir):
os.makedirs(self._outputdir)
return True
def get_temp_file(self, nameid='', suffix='', category="insanity-output"):
"""
Creates a new temporary file in a secure fashion, guaranteeing
it will be unique and only accessible from this user.
If specified, the nameid will be inserted in the unique name.
If specified, the suffix will be used
The returned file will NEVER be removed or closed, the caller
should take care of that.
Return (filepath, fileobject) for the newly created file
"""
# we create temporary files in a specified directory
prefix = "%s-%s" % (category, nameid)
return tempfile.mkstemp(prefix=prefix,
suffix=suffix,
dir=self._outputdir)
gobject.type_register(TestRun)
class ListTestRun(TestRun):
"""
Convenience class to specify a list of tests that will be run
with the same arguments/generator and monitor(s).
Parameters:
* fatal-failure : boolean (default:False)
If set to True, a test will only be run if the previous test for
the same argument has completed successfully.
"""
def __init__(self, tests, arguments, monitors=None, *args, **kwargs):
TestRun.__init__(self, *args, **kwargs)
for test in tests:
self.addTest(test, arguments, monitors)
def single_test_run(test, arguments=[], monitors=None):
"""
Convenience function to create a TestRun for a single test
"""
tr = TestRun()
tr.addTest(test, arguments, monitors)
return tr
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