diff options
Diffstat (limited to 'src/python/grpcio/tests/unit/framework/face/testing/control.py')
-rw-r--r-- | src/python/grpcio/tests/unit/framework/face/testing/control.py | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/control.py b/src/python/grpcio/tests/unit/framework/face/testing/control.py deleted file mode 100644 index 8425affcc9..0000000000 --- a/src/python/grpcio/tests/unit/framework/face/testing/control.py +++ /dev/null @@ -1,87 +0,0 @@ -# Copyright 2015, 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. - -"""Code for instructing systems under test to block or fail.""" - -import abc -import contextlib -import threading - -import six - - -class Control(six.with_metaclass(abc.ABCMeta)): - """An object that accepts program control from a system under test. - - Systems under test passed a Control should call its control() method - frequently during execution. The control() method may block, raise an - exception, or do nothing, all according to the enclosing test's desire for - the system under test to simulate hanging, failing, or functioning. - """ - - @abc.abstractmethod - def control(self): - """Potentially does anything.""" - raise NotImplementedError() - - -class PauseFailControl(Control): - """A Control that can be used to pause or fail code under control.""" - - def __init__(self): - self._condition = threading.Condition() - self._paused = False - self._fail = False - - def control(self): - with self._condition: - if self._fail: - raise ValueError() - - while self._paused: - self._condition.wait() - - @contextlib.contextmanager - def pause(self): - """Pauses code under control while controlling code is in context.""" - with self._condition: - self._paused = True - yield - with self._condition: - self._paused = False - self._condition.notify_all() - - @contextlib.contextmanager - def fail(self): - """Fails code under control while controlling code is in context.""" - with self._condition: - self._fail = True - yield - with self._condition: - self._fail = False |