| # 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 |
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| |
| """State and behavior appropriate for use in tests.""" |
| |
| import threading |
| |
| from grpc.framework.interfaces.links import links |
| |
| |
| 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) |