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# Copyright (C) 2010 Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import optparse
import Queue
import sys
import unittest
try:
import multiprocessing
except ImportError:
multiprocessing = None
from webkitpy.common.system import outputcapture
from webkitpy.layout_tests import port
from webkitpy.layout_tests.layout_package import manager_worker_broker
from webkitpy.layout_tests.layout_package import message_broker2
class TestWorker(manager_worker_broker.AbstractWorker):
def __init__(self, broker_connection, worker_number, options):
self._broker_connection = broker_connection
self._options = options
self._worker_number = worker_number
self._name = 'TestWorker/%d' % worker_number
self._stopped = False
def handle_stop(self, src):
self._stopped = True
def handle_test(self, src, an_int, a_str):
assert an_int == 1
assert a_str == "hello, world"
self._broker_connection.post_message('test', 2, 'hi, everybody')
def is_done(self):
return self._stopped
def name(self):
return self._name
def start(self):
pass
def run(self, port):
try:
self._broker_connection.run_message_loop()
self._broker_connection.yield_to_broker()
self._broker_connection.post_message('done')
except Exception, e:
self._broker_connection.post_message('exception', (type(e), str(e), None))
def get_options(worker_model):
option_list = manager_worker_broker.runtime_options()
parser = optparse.OptionParser(option_list=option_list)
options, args = parser.parse_args(args=['--worker-model', worker_model])
return options
def make_broker(manager, worker_model):
options = get_options(worker_model)
return manager_worker_broker.get(port.get("test"), options, manager,
TestWorker)
class FunctionTests(unittest.TestCase):
def test_get__inline(self):
self.assertTrue(make_broker(self, 'inline') is not None)
def test_get__threads(self):
self.assertTrue(make_broker(self, 'threads') is not None)
def test_get__processes(self):
if multiprocessing:
self.assertTrue(make_broker(self, 'processes') is not None)
else:
self.assertRaises(ValueError, make_broker, self, 'processes')
def test_get__unknown(self):
self.assertRaises(ValueError, make_broker, self, 'unknown')
class _TestsMixin(object):
"""Mixin class that implements a series of tests to enforce the
contract all implementations must follow."""
#
# Methods to implement the Manager side of the ClientInterface
#
def name(self):
return 'Tester'
def is_done(self):
return self._done
#
# Handlers for the messages the TestWorker may send.
#
def handle_done(self, src):
self._done = True
def handle_test(self, src, an_int, a_str):
self._an_int = an_int
self._a_str = a_str
def handle_exception(self, src, exc_info):
self._exception = exc_info
self._done = True
#
# Testing helper methods
#
def setUp(self):
self._an_int = None
self._a_str = None
self._broker = None
self._done = False
self._exception = None
self._worker_model = None
def make_broker(self):
self._broker = make_broker(self, self._worker_model)
#
# Actual unit tests
#
def test_done(self):
if not self._worker_model:
return
self.make_broker()
worker = self._broker.start_worker(0)
self._broker.post_message('test', 1, 'hello, world')
self._broker.post_message('stop')
self._broker.run_message_loop()
self.assertTrue(self.is_done())
self.assertEqual(self._an_int, 2)
self.assertEqual(self._a_str, 'hi, everybody')
def test_unknown_message(self):
if not self._worker_model:
return
self.make_broker()
worker = self._broker.start_worker(0)
self._broker.post_message('unknown')
self._broker.run_message_loop()
self.assertTrue(self.is_done())
self.assertEquals(self._exception[0], ValueError)
self.assertEquals(self._exception[1],
"TestWorker/0: received message 'unknown' it couldn't handle")
class InlineBrokerTests(_TestsMixin, unittest.TestCase):
def setUp(self):
_TestsMixin.setUp(self)
self._worker_model = 'inline'
class MultiProcessBrokerTests(_TestsMixin, unittest.TestCase):
def setUp(self):
_TestsMixin.setUp(self)
if multiprocessing:
self._worker_model = 'processes'
else:
self._worker_model = None
def queue(self):
return multiprocessing.Queue()
class ThreadedBrokerTests(_TestsMixin, unittest.TestCase):
def setUp(self):
_TestsMixin.setUp(self)
self._worker_model = 'threads'
class FunctionsTest(unittest.TestCase):
def test_runtime_options(self):
option_list = manager_worker_broker.runtime_options()
parser = optparse.OptionParser(option_list=option_list)
options, args = parser.parse_args([])
self.assertTrue(options)
class InterfaceTest(unittest.TestCase):
# These tests mostly exist to pacify coverage.
# FIXME: There must be a better way to do this and also verify
# that classes do implement every abstract method in an interface.
def test_managerconnection_is_abstract(self):
# Test that all the base class methods are abstract and have the
# signature we expect.
broker = make_broker(self, 'inline')
obj = manager_worker_broker._ManagerConnection(broker._broker, None, self, None)
self.assertRaises(NotImplementedError, obj.start_worker, 0)
if __name__ == '__main__':
unittest.main()
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