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# Copyright 2011, 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.
"""Mocks for testing.
"""
from __future__ import absolute_import
import six
import six.moves.queue
from six.moves import range
from pywebsocket3 import common, util
from pywebsocket3.stream import Stream, StreamOptions
class _MockConnBase(object):
"""Base class of mocks for mod_python.apache.mp_conn.
This enables tests to check what is written to a (mock) mp_conn.
"""
def __init__(self):
self._write_data = []
self.remote_addr = b'fake_address'
def write(self, data):
"""Override mod_python.apache.mp_conn.write.
data should be bytes when touching this method manually.
"""
self._write_data.append(data)
def written_data(self):
"""Get bytes written to this mock."""
return b''.join(self._write_data)
class MockConn(_MockConnBase):
"""Mock for mod_python.apache.mp_conn.
This enables tests to specify what should be read from a (mock) mp_conn as
well as to check what is written to it.
"""
def __init__(self, read_data):
"""Constructs an instance.
Args:
read_data: bytes that should be returned when read* methods are
called.
"""
_MockConnBase.__init__(self)
self._read_data = read_data
self._read_pos = 0
def readline(self):
"""Override mod_python.apache.mp_conn.readline."""
if self._read_pos >= len(self._read_data):
return b''
end_index = self._read_data.find(b'\n', self._read_pos) + 1
if not end_index:
end_index = len(self._read_data)
return self._read_up_to(end_index)
def read(self, length):
"""Override mod_python.apache.mp_conn.read."""
if self._read_pos >= len(self._read_data):
return b''
end_index = min(len(self._read_data), self._read_pos + length)
return self._read_up_to(end_index)
def _read_up_to(self, end_index):
line = self._read_data[self._read_pos:end_index]
self._read_pos = end_index
return line
class MockBlockingConn(_MockConnBase):
"""Blocking mock for mod_python.apache.mp_conn.
This enables tests to specify what should be read from a (mock) mp_conn as
well as to check what is written to it.
Callers of read* methods will block if there is no bytes available.
"""
def __init__(self):
_MockConnBase.__init__(self)
self._queue = six.moves.queue.Queue()
def readline(self):
"""Override mod_python.apache.mp_conn.readline."""
line = bytearray()
while True:
c = self._queue.get()
line.append(c)
if c == ord(b'\n'):
return bytes(line)
def read(self, length):
"""Override mod_python.apache.mp_conn.read."""
data = bytearray()
for unused in range(length):
data.append(self._queue.get())
return bytes(data)
def put_bytes(self, bytes):
"""Put bytes to be read from this mock.
Args:
bytes: bytes to be read.
"""
for byte in six.iterbytes(bytes):
self._queue.put(byte)
class MockTable(dict):
"""Mock table.
This mimics mod_python mp_table. Note that only the methods used by
tests are overridden.
"""
def __init__(self, copy_from={}):
if isinstance(copy_from, dict):
copy_from = list(copy_from.items())
for key, value in copy_from:
self.__setitem__(key, value)
def __getitem__(self, key):
return super(MockTable, self).__getitem__(key.lower())
def __setitem__(self, key, value):
super(MockTable, self).__setitem__(key.lower(), value)
def get(self, key, def_value=None):
return super(MockTable, self).get(key.lower(), def_value)
class MockRequest(object):
"""Mock request.
This mimics mod_python request.
"""
def __init__(self,
uri=None,
headers_in={},
connection=None,
method='GET',
protocol='HTTP/1.1',
is_https=False):
"""Construct an instance.
Arguments:
uri: URI of the request.
headers_in: Request headers.
connection: Connection used for the request.
method: request method.
is_https: Whether this request is over SSL.
See the document of mod_python Request for details.
"""
self.uri = uri
self.unparsed_uri = uri
self.connection = connection
self.method = method
self.protocol = protocol
self.headers_in = MockTable(headers_in)
# self.is_https_ needs to be accessible from tests. To avoid name
# conflict with self.is_https(), it is named as such.
self.is_https_ = is_https
self.ws_stream = Stream(self, StreamOptions())
self.ws_close_code = None
self.ws_close_reason = None
self.ws_version = common.VERSION_HYBI_LATEST
self.ws_deflate = False
def is_https(self):
"""Return whether this request is over SSL."""
return self.is_https_
class MockDispatcher(object):
"""Mock for dispatch.Dispatcher."""
def __init__(self):
self.do_extra_handshake_called = False
def do_extra_handshake(self, conn_context):
self.do_extra_handshake_called = True
def transfer_data(self, conn_context):
pass
# vi:sts=4 sw=4 et
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