diff options
Diffstat (limited to 'src/python/grpcio_tests/tests/unit/framework/interfaces/links/test_utilities.py')
| -rw-r--r-- | src/python/grpcio_tests/tests/unit/framework/interfaces/links/test_utilities.py | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/python/grpcio_tests/tests/unit/framework/interfaces/links/test_utilities.py b/src/python/grpcio_tests/tests/unit/framework/interfaces/links/test_utilities.py deleted file mode 100644 index 39c7f2fc63..0000000000 --- a/src/python/grpcio_tests/tests/unit/framework/interfaces/links/test_utilities.py +++ /dev/null @@ -1,167 +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. - -"""State and behavior appropriate for use in tests.""" - -import logging -import threading -import time - -from grpc.framework.interfaces.links import links -from grpc.framework.interfaces.links import utilities - -# A more-or-less arbitrary limit on the length of raw data values to be logged. -_UNCOMFORTABLY_LONG = 48 - - -def _safe_for_log_ticket(ticket): - """Creates a safe-for-printing-to-the-log ticket for a given ticket. - - Args: - ticket: Any links.Ticket. - - Returns: - A links.Ticket that is as much as can be equal to the given ticket but - possibly features values like the string "<payload of length 972321>" in - place of the actual values of the given ticket. - """ - if isinstance(ticket.payload, (basestring,)): - payload_length = len(ticket.payload) - else: - payload_length = -1 - if payload_length < _UNCOMFORTABLY_LONG: - return ticket - else: - return links.Ticket( - ticket.operation_id, ticket.sequence_number, - ticket.group, ticket.method, ticket.subscription, ticket.timeout, - ticket.allowance, ticket.initial_metadata, - '<payload of length {}>'.format(payload_length), - ticket.terminal_metadata, ticket.code, ticket.message, - ticket.termination, None) - - -class RecordingLink(links.Link): - """A Link that records every ticket passed to it.""" - - def __init__(self): - self._condition = threading.Condition() - self._tickets = [] - - def accept_ticket(self, ticket): - with self._condition: - self._tickets.append(ticket) - self._condition.notify_all() - - def join_link(self, link): - pass - - def block_until_tickets_satisfy(self, predicate): - """Blocks until the received tickets satisfy the given predicate. - - Args: - predicate: A callable that takes a sequence of tickets and returns a - boolean value. - """ - with self._condition: - while not predicate(self._tickets): - self._condition.wait() - - def tickets(self): - """Returns a copy of the list of all tickets received by this Link.""" - with self._condition: - return tuple(self._tickets) - - -class _Pipe(object): - """A conduit that logs all tickets passed through it.""" - - def __init__(self, name): - self._lock = threading.Lock() - self._name = name - self._left_mate = utilities.NULL_LINK - self._right_mate = utilities.NULL_LINK - - def accept_left_to_right_ticket(self, ticket): - with self._lock: - logging.warning( - '%s: moving left to right through %s: %s', time.time(), self._name, - _safe_for_log_ticket(ticket)) - try: - self._right_mate.accept_ticket(ticket) - except Exception as e: # pylint: disable=broad-except - logging.exception(e) - - def accept_right_to_left_ticket(self, ticket): - with self._lock: - logging.warning( - '%s: moving right to left through %s: %s', time.time(), self._name, - _safe_for_log_ticket(ticket)) - try: - self._left_mate.accept_ticket(ticket) - except Exception as e: # pylint: disable=broad-except - logging.exception(e) - - def join_left_mate(self, left_mate): - with self._lock: - self._left_mate = utilities.NULL_LINK if left_mate is None else left_mate - - def join_right_mate(self, right_mate): - with self._lock: - self._right_mate = ( - utilities.NULL_LINK if right_mate is None else right_mate) - - -class _Facade(links.Link): - - def __init__(self, accept, join): - self._accept = accept - self._join = join - - def accept_ticket(self, ticket): - self._accept(ticket) - - def join_link(self, link): - self._join(link) - - -def logging_links(name): - """Creates a conduit that logs all tickets passed through it. - - Args: - name: A name to use for the conduit to identify itself in logging output. - - Returns: - Two links.Links, the first of which is the "left" side of the conduit - and the second of which is the "right" side of the conduit. - """ - pipe = _Pipe(name) - left_facade = _Facade(pipe.accept_left_to_right_ticket, pipe.join_left_mate) - right_facade = _Facade(pipe.accept_right_to_left_ticket, pipe.join_right_mate) - return left_facade, right_facade |