106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Common utilities used in testing"""
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import errno
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import logging
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import os
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import socket
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import fixtures
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import testresources
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import testtools
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TRUE_VALUES = ('true', '1', 'yes')
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class BaseTestCase(testtools.TestCase, testresources.ResourcedTestCase):
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def setUp(self):
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super(BaseTestCase, self).setUp()
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test_timeout = os.environ.get('OS_TEST_TIMEOUT', 30)
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try:
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test_timeout = int(test_timeout)
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except ValueError:
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# If timeout value is invalid, fail hard.
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print("OS_TEST_TIMEOUT set to invalid value"
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" defaulting to no timeout")
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test_timeout = 0
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if test_timeout > 0:
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self.useFixture(fixtures.Timeout(test_timeout, gentle=True))
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if os.environ.get('OS_STDOUT_CAPTURE') in TRUE_VALUES:
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stdout = self.useFixture(fixtures.StringStream('stdout')).stream
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self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
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if os.environ.get('OS_STDERR_CAPTURE') in TRUE_VALUES:
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stderr = self.useFixture(fixtures.StringStream('stderr')).stream
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self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
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self.useFixture(fixtures.FakeLogger(
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level=logging.INFO,
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format='%(asctime)s %(name)-32s '
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'%(levelname)-8s %(message)s'))
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self.useFixture(fixtures.NestedTempfile())
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def raise_eagain():
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e = socket.error("socket error [Errno 11] "
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"Resource temporarily unavailable")
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e.errno = errno.EAGAIN
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raise e
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class FakeSocketEOF(Exception):
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pass
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class FakeSocket(object):
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def __init__(self, af=None, socktype=None, proto=None):
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self.packets = []
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self.packet_num = 0
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self.packet_pos = 0
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self.blocking = 1
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def _set_data(self, data):
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self.packets = data
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def connect(self, sa):
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pass
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def setblocking(self, blocking):
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self.blocking = blocking
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def recv(self, count):
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while True:
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if self.packet_num + 1 > len(self.packets):
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if not self.blocking:
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raise_eagain()
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raise FakeSocketEOF(
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"End of data reached in blocking mode")
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packet = self.packets[self.packet_num]
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if self.packet_pos + 1 > len(packet):
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self.packet_num += 1
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self.packet_pos = 0
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if not self.blocking:
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raise_eagain()
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continue
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break
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start = self.packet_pos
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end = min(start + count, len(packet))
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self.packet_pos = end
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return bytes(packet[start:end])
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