158 lines
4.9 KiB
Python
158 lines
4.9 KiB
Python
# package is named tests, not test, so it won't be confused with test in stdlib
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import sys
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import os
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import errno
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import unittest
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import warnings
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from eventlet import debug, hubs
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# convenience for importers
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main = unittest.main
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def s2b(s):
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"""portable way to convert string to bytes. In 3.x socket.send and recv require bytes"""
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return s.encode()
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def skipped(func):
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""" Decorator that marks a function as skipped. Uses nose's SkipTest exception
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if installed. Without nose, this will count skipped tests as passing tests."""
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try:
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from nose.plugins.skip import SkipTest
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def skipme(*a, **k):
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raise SkipTest()
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skipme.__name__ = func.__name__
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return skipme
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except ImportError:
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# no nose, we'll just skip the test ourselves
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def skipme(*a, **k):
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print "Skipping", func.__name__
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skipme.__name__ = func.__name__
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return skipme
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def skip_if(condition):
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""" Decorator that skips a test if the *condition* evaluates True.
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*condition* can be a boolean or a callable that accepts one argument.
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The callable will be called with the function to be decorated, and
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should return True to skip the test.
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"""
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def skipped_wrapper(func):
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if isinstance(condition, bool):
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result = condition
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else:
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result = condition(func)
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if result:
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return skipped(func)
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else:
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return func
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return skipped_wrapper
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def skip_unless(condition):
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""" Decorator that skips a test if the *condition* does not return True.
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*condition* can be a boolean or a callable that accepts one argument.
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The callable will be called with the function to be decorated, and
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should return True if the condition is satisfied.
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"""
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def skipped_wrapper(func):
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if isinstance(condition, bool):
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result = condition
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else:
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result = condition(func)
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if not result:
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return skipped(func)
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else:
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return func
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return skipped_wrapper
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def requires_twisted(func):
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""" Decorator that skips a test if Twisted is not present."""
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def requirement(_f):
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from eventlet.hubs import get_hub
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try:
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return 'Twisted' in type(get_hub()).__name__
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except Exception:
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return False
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return skip_unless(requirement)(func)
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def using_pyevent(_f):
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from eventlet.hubs import get_hub
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return 'pyevent' in type(get_hub()).__module__
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def skip_with_pyevent(func):
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""" Decorator that skips a test if we're using the pyevent hub."""
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return skip_if(using_pyevent)(func)
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def skip_on_windows(func):
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""" Decorator that skips a test on Windows."""
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import sys
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return skip_if(sys.platform.startswith('win'))(func)
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class TestIsTakingTooLong(Exception):
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""" Custom exception class to be raised when a test's runtime exceeds a limit. """
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pass
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class LimitedTestCase(unittest.TestCase):
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""" Unittest subclass that adds a timeout to all tests. Subclasses must
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be sure to call the LimitedTestCase setUp and tearDown methods. The default
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timeout is 1 second, change it by setting self.TEST_TIMEOUT to the desired
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quantity."""
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TEST_TIMEOUT = 1
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def setUp(self):
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import eventlet
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self.timer = eventlet.Timeout(self.TEST_TIMEOUT,
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TestIsTakingTooLong(self.TEST_TIMEOUT))
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def reset_timeout(self, new_timeout):
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"""Changes the timeout duration; only has effect during one test case"""
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import eventlet
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self.timer.cancel()
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self.timer = eventlet.Timeout(new_timeout,
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TestIsTakingTooLong(new_timeout))
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def tearDown(self):
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self.timer.cancel()
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try:
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hub = hubs.get_hub()
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num_readers = len(hub.get_readers())
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num_writers = len(hub.get_writers())
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assert num_readers == num_writers == 0
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except AssertionError, e:
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print "ERROR: Hub not empty"
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print debug.format_hub_timers()
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print debug.format_hub_listeners()
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def verify_hub_empty():
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from eventlet import hubs
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hub = hubs.get_hub()
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num_readers = len(hub.get_readers())
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num_writers = len(hub.get_writers())
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num_timers = hub.get_timers_count()
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assert num_readers == 0 and num_writers == 0, "Readers: %s Writers: %s" % (num_readers, num_writers)
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def find_command(command):
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for dir in os.getenv('PATH', '/usr/bin:/usr/sbin').split(os.pathsep):
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p = os.path.join(dir, command)
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if os.access(p, os.X_OK):
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return p
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raise IOError(errno.ENOENT, 'Command not found: %r' % command)
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def silence_warnings(func):
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def wrapper(*args, **kw):
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warnings.simplefilter('ignore', DeprecationWarning)
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try:
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return func(*args, **kw)
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finally:
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warnings.simplefilter('default', DeprecationWarning)
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wrapper.__name__ = func.__name__
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return wrapper
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