from __future__ import absolute_import
import unittest
from mercurial import (
error,
wireprotoframing as framing,
)
ffs = framing.makeframefromhumanstring
def sendframe(reactor, frame):
"""Send a frame bytearray to a reactor."""
header = framing.parseheader(frame)
payload = frame[framing.FRAME_HEADER_SIZE:]
assert len(payload) == header.length
return reactor.onframerecv(framing.frame(header.requestid,
header.streamid,
header.streamflags,
header.typeid,
header.flags,
payload))
class SingleSendTests(unittest.TestCase):
"""A reactor that can only send once rejects subsequent sends."""
if not getattr(unittest.TestCase, 'assertRaisesRegex', False):
# Python 3.7 deprecates the regex*p* version, but 2.7 lacks
# the regex version.
assertRaisesRegex = (# camelcase-required
unittest.TestCase.assertRaisesRegexp)
def testbasic(self):
reactor = framing.clientreactor(hasmultiplesend=False, buffersends=True)
request, action, meta = reactor.callcommand(b'foo', {})
self.assertEqual(request.state, b'pending')
self.assertEqual(action, b'noop')
action, meta = reactor.flushcommands()
self.assertEqual(action, b'sendframes')
for frame in meta[b'framegen']:
self.assertEqual(request.state, b'sending')
self.assertEqual(request.state, b'sent')
with self.assertRaisesRegex(error.ProgrammingError,
'cannot issue new commands'):
reactor.callcommand(b'foo', {})
with self.assertRaisesRegex(error.ProgrammingError,
'cannot issue new commands'):
reactor.callcommand(b'foo', {})
class NoBufferTests(unittest.TestCase):
"""A reactor without send buffering sends requests immediately."""
def testbasic(self):
reactor = framing.clientreactor(hasmultiplesend=True, buffersends=False)
request, action, meta = reactor.callcommand(b'command1', {})
self.assertEqual(request.requestid, 1)
self.assertEqual(action, b'sendframes')
self.assertEqual(request.state, b'pending')
for frame in meta[b'framegen']:
self.assertEqual(request.state, b'sending')
self.assertEqual(request.state, b'sent')
action, meta = reactor.flushcommands()
self.assertEqual(action, b'noop')
# And we can send another command.
request, action, meta = reactor.callcommand(b'command2', {})
self.assertEqual(request.requestid, 3)
self.assertEqual(action, b'sendframes')
for frame in meta[b'framegen']:
self.assertEqual(request.state, b'sending')
self.assertEqual(request.state, b'sent')
class BadFrameRecvTests(unittest.TestCase):
if not getattr(unittest.TestCase, 'assertRaisesRegex', False):
# Python 3.7 deprecates the regex*p* version, but 2.7 lacks
# the regex version.
assertRaisesRegex = (# camelcase-required
unittest.TestCase.assertRaisesRegexp)
def testoddstream(self):
reactor = framing.clientreactor()
action, meta = sendframe(reactor, ffs(b'1 1 0 1 0 foo'))
self.assertEqual(action, b'error')
self.assertEqual(meta[b'message'],
b'received frame with odd numbered stream ID: 1')
def testunknownstream(self):
reactor = framing.clientreactor()
action, meta = sendframe(reactor, ffs(b'1 0 0 1 0 foo'))
self.assertEqual(action, b'error')
self.assertEqual(meta[b'message'],
b'received frame on unknown stream without beginning '
b'of stream flag set')
def testunhandledframetype(self):
reactor = framing.clientreactor(buffersends=False)
request, action, meta = reactor.callcommand(b'foo', {})
for frame in meta[b'framegen']:
pass
with self.assertRaisesRegex(error.ProgrammingError,
'unhandled frame type'):
sendframe(reactor, ffs(b'1 0 stream-begin text-output 0 foo'))
class StreamTests(unittest.TestCase):
def testmultipleresponseframes(self):
reactor = framing.clientreactor(buffersends=False)
request, action, meta = reactor.callcommand(b'foo', {})
self.assertEqual(action, b'sendframes')
for f in meta[b'framegen']:
pass
action, meta = sendframe(
reactor,
ffs(b'%d 0 stream-begin command-response 0 foo' %
request.requestid))
self.assertEqual(action, b'responsedata')
action, meta = sendframe(
reactor,
ffs(b'%d 0 0 command-response eos bar' % request.requestid))
self.assertEqual(action, b'responsedata')
if __name__ == '__main__':
import silenttestrunner
silenttestrunner.main(__name__)