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from __future__ import absolute_import
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import unittest
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import zlib
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from mercurial import (
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error,
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ui as uimod,
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wireprotoframing as framing,
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)
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from mercurial.utils import (
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cborutil,
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)
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try:
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from mercurial import zstd
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zstd.__version__
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except ImportError:
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zstd = None
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ffs = framing.makeframefromhumanstring
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globalui = uimod.ui()
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def sendframe(reactor, frame):
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"""Send a frame bytearray to a reactor."""
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header = framing.parseheader(frame)
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payload = frame[framing.FRAME_HEADER_SIZE:]
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assert len(payload) == header.length
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return reactor.onframerecv(framing.frame(header.requestid,
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header.streamid,
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header.streamflags,
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header.typeid,
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header.flags,
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payload))
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class SingleSendTests(unittest.TestCase):
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"""A reactor that can only send once rejects subsequent sends."""
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if not getattr(unittest.TestCase, 'assertRaisesRegex', False):
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# Python 3.7 deprecates the regex*p* version, but 2.7 lacks
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# the regex version.
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assertRaisesRegex = (# camelcase-required
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unittest.TestCase.assertRaisesRegexp)
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def testbasic(self):
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reactor = framing.clientreactor(globalui,
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hasmultiplesend=False,
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buffersends=True)
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request, action, meta = reactor.callcommand(b'foo', {})
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self.assertEqual(request.state, b'pending')
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self.assertEqual(action, b'noop')
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action, meta = reactor.flushcommands()
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self.assertEqual(action, b'sendframes')
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for frame in meta[b'framegen']:
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self.assertEqual(request.state, b'sending')
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self.assertEqual(request.state, b'sent')
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with self.assertRaisesRegex(error.ProgrammingError,
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'cannot issue new commands'):
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reactor.callcommand(b'foo', {})
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with self.assertRaisesRegex(error.ProgrammingError,
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'cannot issue new commands'):
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reactor.callcommand(b'foo', {})
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class NoBufferTests(unittest.TestCase):
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"""A reactor without send buffering sends requests immediately."""
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def testbasic(self):
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reactor = framing.clientreactor(globalui,
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hasmultiplesend=True,
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buffersends=False)
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request, action, meta = reactor.callcommand(b'command1', {})
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self.assertEqual(request.requestid, 1)
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self.assertEqual(action, b'sendframes')
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self.assertEqual(request.state, b'pending')
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for frame in meta[b'framegen']:
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self.assertEqual(request.state, b'sending')
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self.assertEqual(request.state, b'sent')
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action, meta = reactor.flushcommands()
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self.assertEqual(action, b'noop')
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# And we can send another command.
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request, action, meta = reactor.callcommand(b'command2', {})
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self.assertEqual(request.requestid, 3)
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self.assertEqual(action, b'sendframes')
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for frame in meta[b'framegen']:
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self.assertEqual(request.state, b'sending')
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self.assertEqual(request.state, b'sent')
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class BadFrameRecvTests(unittest.TestCase):
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if not getattr(unittest.TestCase, 'assertRaisesRegex', False):
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# Python 3.7 deprecates the regex*p* version, but 2.7 lacks
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# the regex version.
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assertRaisesRegex = (# camelcase-required
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unittest.TestCase.assertRaisesRegexp)
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def testoddstream(self):
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reactor = framing.clientreactor(globalui)
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action, meta = sendframe(reactor, ffs(b'1 1 0 1 0 foo'))
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self.assertEqual(action, b'error')
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self.assertEqual(meta[b'message'],
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b'received frame with odd numbered stream ID: 1')
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def testunknownstream(self):
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reactor = framing.clientreactor(globalui)
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action, meta = sendframe(reactor, ffs(b'1 0 0 1 0 foo'))
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self.assertEqual(action, b'error')
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self.assertEqual(meta[b'message'],
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b'received frame on unknown stream without beginning '
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b'of stream flag set')
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def testunhandledframetype(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for frame in meta[b'framegen']:
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pass
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with self.assertRaisesRegex(error.ProgrammingError,
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'unhandled frame type'):
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sendframe(reactor, ffs(b'1 0 stream-begin text-output 0 foo'))
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class StreamTests(unittest.TestCase):
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def testmultipleresponseframes(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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self.assertEqual(action, b'sendframes')
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(
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reactor,
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ffs(b'%d 0 stream-begin command-response 0 foo' %
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request.requestid))
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self.assertEqual(action, b'responsedata')
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action, meta = sendframe(
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reactor,
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ffs(b'%d 0 0 command-response eos bar' % request.requestid))
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self.assertEqual(action, b'responsedata')
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class RedirectTests(unittest.TestCase):
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def testredirect(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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redirect = {
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b'targets': [b'a', b'b'],
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b'hashes': [b'sha256'],
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}
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request, action, meta = reactor.callcommand(
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b'foo', {}, redirect=redirect)
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self.assertEqual(action, b'sendframes')
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frames = list(meta[b'framegen'])
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self.assertEqual(len(frames), 1)
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self.assertEqual(frames[0],
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ffs(b'1 1 stream-begin command-request new '
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b"cbor:{b'name': b'foo', "
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b"b'redirect': {b'targets': [b'a', b'b'], "
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b"b'hashes': [b'sha256']}}"))
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class StreamSettingsTests(unittest.TestCase):
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def testnoflags(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings 0 '))
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self.assertEqual(action, b'error')
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self.assertEqual(meta, {
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b'message': b'stream encoding settings frame must have '
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b'continuation or end of stream flag set',
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})
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def testconflictflags(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings continuation|eos '))
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self.assertEqual(action, b'error')
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self.assertEqual(meta, {
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b'message': b'stream encoding settings frame cannot have both '
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b'continuation and end of stream flags set',
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})
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def testemptypayload(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings eos '))
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self.assertEqual(action, b'error')
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self.assertEqual(meta, {
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b'message': b'stream encoding settings frame did not contain '
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b'CBOR data'
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})
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def testbadcbor(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings eos badvalue'))
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self.assertEqual(action, b'error')
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def testsingleobject(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings eos cbor:b"identity"'))
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self.assertEqual(action, b'noop')
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self.assertEqual(meta, {})
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def testmultipleobjects(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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data = b''.join([
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b''.join(cborutil.streamencode(b'identity')),
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b''.join(cborutil.streamencode({b'foo', b'bar'})),
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])
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings eos %s' % data))
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self.assertEqual(action, b'error')
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self.assertEqual(meta, {
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b'message': b'error setting stream decoder: identity decoder '
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b'received unexpected additional values',
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})
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def testmultipleframes(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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data = b''.join(cborutil.streamencode(b'identity'))
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings continuation %s' %
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data[0:3]))
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self.assertEqual(action, b'noop')
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self.assertEqual(meta, {})
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action, meta = sendframe(reactor,
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ffs(b'1 2 0 stream-settings eos %s' % data[3:]))
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self.assertEqual(action, b'noop')
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self.assertEqual(meta, {})
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def testinvalidencoder(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'1 2 stream-begin stream-settings eos cbor:b"badvalue"'))
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self.assertEqual(action, b'error')
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self.assertEqual(meta, {
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b'message': b'error setting stream decoder: unknown stream '
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b'decoder: badvalue',
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})
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def testzlibencoding(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'%d 2 stream-begin stream-settings eos cbor:b"zlib"' %
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request.requestid))
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self.assertEqual(action, b'noop')
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self.assertEqual(meta, {})
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result = {
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b'status': b'ok',
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}
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encoded = b''.join(cborutil.streamencode(result))
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compressed = zlib.compress(encoded)
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self.assertEqual(zlib.decompress(compressed), encoded)
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action, meta = sendframe(reactor,
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ffs(b'%d 2 encoded command-response eos %s' %
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(request.requestid, compressed)))
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self.assertEqual(action, b'responsedata')
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self.assertEqual(meta[b'data'], encoded)
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def testzlibencodingsinglebyteframes(self):
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reactor = framing.clientreactor(globalui, buffersends=False)
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request, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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action, meta = sendframe(reactor,
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ffs(b'%d 2 stream-begin stream-settings eos cbor:b"zlib"' %
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request.requestid))
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self.assertEqual(action, b'noop')
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self.assertEqual(meta, {})
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result = {
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b'status': b'ok',
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}
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encoded = b''.join(cborutil.streamencode(result))
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compressed = zlib.compress(encoded)
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self.assertEqual(zlib.decompress(compressed), encoded)
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chunks = []
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for i in range(len(compressed)):
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char = compressed[i:i + 1]
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if char == b'\\':
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char = b'\\\\'
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action, meta = sendframe(reactor,
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ffs(b'%d 2 encoded command-response continuation %s' %
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(request.requestid, char)))
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self.assertEqual(action, b'responsedata')
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chunks.append(meta[b'data'])
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self.assertTrue(meta[b'expectmore'])
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self.assertFalse(meta[b'eos'])
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# zlib will have the full data decoded at this point, even though
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# we haven't flushed.
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self.assertEqual(b''.join(chunks), encoded)
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# End the stream for good measure.
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action, meta = sendframe(reactor,
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ffs(b'%d 2 stream-end command-response eos ' % request.requestid))
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self.assertEqual(action, b'responsedata')
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self.assertEqual(meta[b'data'], b'')
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self.assertFalse(meta[b'expectmore'])
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self.assertTrue(meta[b'eos'])
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def testzlibmultipleresponses(self):
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# We feed in zlib compressed data on the same stream but belonging to
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# 2 different requests. This tests our flushing behavior.
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reactor = framing.clientreactor(globalui, buffersends=False,
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hasmultiplesend=True)
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request1, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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request2, action, meta = reactor.callcommand(b'foo', {})
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for f in meta[b'framegen']:
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pass
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outstream = framing.outputstream(2)
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outstream.setencoder(globalui, b'zlib')
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response1 = b''.join(cborutil.streamencode({
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b'status': b'ok',
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b'extra': b'response1' * 10,
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}))
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response2 = b''.join(cborutil.streamencode({
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b'status': b'error',
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b'extra': b'response2' * 10,
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}))
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action, meta = sendframe(reactor,
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ffs(b'%d 2 stream-begin stream-settings eos cbor:b"zlib"' %
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request1.requestid))
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self.assertEqual(action, b'noop')
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self.assertEqual(meta, {})
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# Feeding partial data in won't get anything useful out.
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action, meta = sendframe(reactor,
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ffs(b'%d 2 encoded command-response continuation %s' % (
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request1.requestid, outstream.encode(response1))))
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self.assertEqual(action, b'responsedata')
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self.assertEqual(meta[b'data'], b'')
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# But flushing data at both ends will get our original data.
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action, meta = sendframe(reactor,
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ffs(b'%d 2 encoded command-response eos %s' % (
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request1.requestid, outstream.flush())))
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self.assertEqual(action, b'responsedata')
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self.assertEqual(meta[b'data'], response1)
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# We should be able to reuse the compressor/decompressor for the
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# 2nd response.
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|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response continuation %s' % (
|
|
|
request2.requestid, outstream.encode(response2))))
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], b'')
|
|
|
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response eos %s' % (
|
|
|
request2.requestid, outstream.flush())))
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], response2)
|
|
|
|
|
|
@unittest.skipUnless(zstd, 'zstd not available')
|
|
|
def testzstd8mbencoding(self):
|
|
|
reactor = framing.clientreactor(globalui, buffersends=False)
|
|
|
|
|
|
request, action, meta = reactor.callcommand(b'foo', {})
|
|
|
for f in meta[b'framegen']:
|
|
|
pass
|
|
|
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 stream-begin stream-settings eos cbor:b"zstd-8mb"' %
|
|
|
request.requestid))
|
|
|
|
|
|
self.assertEqual(action, b'noop')
|
|
|
self.assertEqual(meta, {})
|
|
|
|
|
|
result = {
|
|
|
b'status': b'ok',
|
|
|
}
|
|
|
encoded = b''.join(cborutil.streamencode(result))
|
|
|
|
|
|
encoder = framing.zstd8mbencoder(globalui)
|
|
|
compressed = encoder.encode(encoded) + encoder.finish()
|
|
|
self.assertEqual(zstd.ZstdDecompressor().decompress(
|
|
|
compressed, max_output_size=len(encoded)), encoded)
|
|
|
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response eos %s' %
|
|
|
(request.requestid, compressed)))
|
|
|
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], encoded)
|
|
|
|
|
|
@unittest.skipUnless(zstd, 'zstd not available')
|
|
|
def testzstd8mbencodingsinglebyteframes(self):
|
|
|
reactor = framing.clientreactor(globalui, buffersends=False)
|
|
|
|
|
|
request, action, meta = reactor.callcommand(b'foo', {})
|
|
|
for f in meta[b'framegen']:
|
|
|
pass
|
|
|
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 stream-begin stream-settings eos cbor:b"zstd-8mb"' %
|
|
|
request.requestid))
|
|
|
|
|
|
self.assertEqual(action, b'noop')
|
|
|
self.assertEqual(meta, {})
|
|
|
|
|
|
result = {
|
|
|
b'status': b'ok',
|
|
|
}
|
|
|
encoded = b''.join(cborutil.streamencode(result))
|
|
|
|
|
|
compressed = zstd.ZstdCompressor().compress(encoded)
|
|
|
self.assertEqual(zstd.ZstdDecompressor().decompress(compressed),
|
|
|
encoded)
|
|
|
|
|
|
chunks = []
|
|
|
|
|
|
for i in range(len(compressed)):
|
|
|
char = compressed[i:i + 1]
|
|
|
if char == b'\\':
|
|
|
char = b'\\\\'
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response continuation %s' %
|
|
|
(request.requestid, char)))
|
|
|
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
chunks.append(meta[b'data'])
|
|
|
self.assertTrue(meta[b'expectmore'])
|
|
|
self.assertFalse(meta[b'eos'])
|
|
|
|
|
|
# zstd decompressor will flush at frame boundaries.
|
|
|
self.assertEqual(b''.join(chunks), encoded)
|
|
|
|
|
|
# End the stream for good measure.
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 stream-end command-response eos ' % request.requestid))
|
|
|
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], b'')
|
|
|
self.assertFalse(meta[b'expectmore'])
|
|
|
self.assertTrue(meta[b'eos'])
|
|
|
|
|
|
@unittest.skipUnless(zstd, 'zstd not available')
|
|
|
def testzstd8mbmultipleresponses(self):
|
|
|
# We feed in zstd compressed data on the same stream but belonging to
|
|
|
# 2 different requests. This tests our flushing behavior.
|
|
|
reactor = framing.clientreactor(globalui, buffersends=False,
|
|
|
hasmultiplesend=True)
|
|
|
|
|
|
request1, action, meta = reactor.callcommand(b'foo', {})
|
|
|
for f in meta[b'framegen']:
|
|
|
pass
|
|
|
|
|
|
request2, action, meta = reactor.callcommand(b'foo', {})
|
|
|
for f in meta[b'framegen']:
|
|
|
pass
|
|
|
|
|
|
outstream = framing.outputstream(2)
|
|
|
outstream.setencoder(globalui, b'zstd-8mb')
|
|
|
|
|
|
response1 = b''.join(cborutil.streamencode({
|
|
|
b'status': b'ok',
|
|
|
b'extra': b'response1' * 10,
|
|
|
}))
|
|
|
|
|
|
response2 = b''.join(cborutil.streamencode({
|
|
|
b'status': b'error',
|
|
|
b'extra': b'response2' * 10,
|
|
|
}))
|
|
|
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 stream-begin stream-settings eos cbor:b"zstd-8mb"' %
|
|
|
request1.requestid))
|
|
|
|
|
|
self.assertEqual(action, b'noop')
|
|
|
self.assertEqual(meta, {})
|
|
|
|
|
|
# Feeding partial data in won't get anything useful out.
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response continuation %s' % (
|
|
|
request1.requestid, outstream.encode(response1))))
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], b'')
|
|
|
|
|
|
# But flushing data at both ends will get our original data.
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response eos %s' % (
|
|
|
request1.requestid, outstream.flush())))
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], response1)
|
|
|
|
|
|
# We should be able to reuse the compressor/decompressor for the
|
|
|
# 2nd response.
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response continuation %s' % (
|
|
|
request2.requestid, outstream.encode(response2))))
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], b'')
|
|
|
|
|
|
action, meta = sendframe(reactor,
|
|
|
ffs(b'%d 2 encoded command-response eos %s' % (
|
|
|
request2.requestid, outstream.flush())))
|
|
|
self.assertEqual(action, b'responsedata')
|
|
|
self.assertEqual(meta[b'data'], response2)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
import silenttestrunner
|
|
|
silenttestrunner.main(__name__)
|
|
|
|
