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import asyncio
import io
import os
import socket
from uvloop import _testbase as tb
# All tests are copied from asyncio (mostly as-is)
class MyReadPipeProto(asyncio.Protocol):
done = None
def __init__(self, loop=None):
self.state = ['INITIAL']
self.nbytes = 0
self.transport = None
if loop is not None:
self.done = asyncio.Future(loop=loop)
def connection_made(self, transport):
self.transport = transport
assert self.state == ['INITIAL'], self.state
self.state.append('CONNECTED')
def data_received(self, data):
assert self.state == ['INITIAL', 'CONNECTED'], self.state
self.nbytes += len(data)
def eof_received(self):
assert self.state == ['INITIAL', 'CONNECTED'], self.state
self.state.append('EOF')
def connection_lost(self, exc):
if 'EOF' not in self.state:
self.state.append('EOF') # It is okay if EOF is missed.
assert self.state == ['INITIAL', 'CONNECTED', 'EOF'], self.state
self.state.append('CLOSED')
if self.done:
self.done.set_result(None)
class MyWritePipeProto(asyncio.BaseProtocol):
done = None
paused = False
def __init__(self, loop=None):
self.state = 'INITIAL'
self.transport = None
if loop is not None:
self.done = asyncio.Future(loop=loop)
def connection_made(self, transport):
self.transport = transport
assert self.state == 'INITIAL', self.state
self.state = 'CONNECTED'
def connection_lost(self, exc):
assert self.state == 'CONNECTED', self.state
self.state = 'CLOSED'
if self.done:
self.done.set_result(None)
def pause_writing(self):
self.paused = True
def resume_writing(self):
self.paused = False
class _BasePipeTest:
def test_read_pipe(self):
proto = MyReadPipeProto(loop=self.loop)
rpipe, wpipe = os.pipe()
pipeobj = io.open(rpipe, 'rb', 1024)
async def connect():
t, p = await self.loop.connect_read_pipe(
lambda: proto, pipeobj)
self.assertIs(p, proto)
self.assertIs(t, proto.transport)
self.assertEqual(['INITIAL', 'CONNECTED'], proto.state)
self.assertEqual(0, proto.nbytes)
self.loop.run_until_complete(connect())
os.write(wpipe, b'1')
tb.run_until(self.loop, lambda: proto.nbytes >= 1)
self.assertEqual(1, proto.nbytes)
os.write(wpipe, b'2345')
tb.run_until(self.loop, lambda: proto.nbytes >= 5)
self.assertEqual(['INITIAL', 'CONNECTED'], proto.state)
self.assertEqual(5, proto.nbytes)
os.close(wpipe)
self.loop.run_until_complete(proto.done)
self.assertEqual(
['INITIAL', 'CONNECTED', 'EOF', 'CLOSED'], proto.state)
# extra info is available
self.assertIsNotNone(proto.transport.get_extra_info('pipe'))
def test_read_pty_output(self):
proto = MyReadPipeProto(loop=self.loop)
master, slave = os.openpty()
master_read_obj = io.open(master, 'rb', 0)
async def connect():
t, p = await self.loop.connect_read_pipe(
lambda: proto, master_read_obj)
self.assertIs(p, proto)
self.assertIs(t, proto.transport)
self.assertEqual(['INITIAL', 'CONNECTED'], proto.state)
self.assertEqual(0, proto.nbytes)
self.loop.run_until_complete(connect())
os.write(slave, b'1')
tb.run_until(self.loop, lambda: proto.nbytes)
self.assertEqual(1, proto.nbytes)
os.write(slave, b'2345')
tb.run_until(self.loop, lambda: proto.nbytes >= 5)
self.assertEqual(['INITIAL', 'CONNECTED'], proto.state)
self.assertEqual(5, proto.nbytes)
# On Linux, transport raises EIO when slave is closed --
# ignore it.
self.loop.set_exception_handler(lambda loop, ctx: None)
os.close(slave)
proto.transport.close()
self.loop.run_until_complete(proto.done)
self.assertEqual(
['INITIAL', 'CONNECTED', 'EOF', 'CLOSED'], proto.state)
# extra info is available
self.assertIsNotNone(proto.transport.get_extra_info('pipe'))
def test_write_pipe(self):
rpipe, wpipe = os.pipe()
os.set_blocking(rpipe, False)
pipeobj = io.open(wpipe, 'wb', 1024)
proto = MyWritePipeProto(loop=self.loop)
connect = self.loop.connect_write_pipe(lambda: proto, pipeobj)
transport, p = self.loop.run_until_complete(connect)
self.assertIs(p, proto)
self.assertIs(transport, proto.transport)
self.assertEqual('CONNECTED', proto.state)
transport.write(b'1')
data = bytearray()
def reader(data):
try:
chunk = os.read(rpipe, 1024)
except BlockingIOError:
return len(data)
data += chunk
return len(data)
tb.run_until(self.loop, lambda: reader(data) >= 1)
self.assertEqual(b'1', data)
transport.write(b'2345')
tb.run_until(self.loop, lambda: reader(data) >= 5)
self.assertEqual(b'12345', data)
self.assertEqual('CONNECTED', proto.state)
os.close(rpipe)
# extra info is available
self.assertIsNotNone(proto.transport.get_extra_info('pipe'))
# close connection
proto.transport.close()
self.loop.run_until_complete(proto.done)
self.assertEqual('CLOSED', proto.state)
def test_write_pipe_disconnect_on_close(self):
rsock, wsock = socket.socketpair()
rsock.setblocking(False)
pipeobj = io.open(wsock.detach(), 'wb', 1024)
proto = MyWritePipeProto(loop=self.loop)
connect = self.loop.connect_write_pipe(lambda: proto, pipeobj)
transport, p = self.loop.run_until_complete(connect)
self.assertIs(p, proto)
self.assertIs(transport, proto.transport)
self.assertEqual('CONNECTED', proto.state)
transport.write(b'1')
data = self.loop.run_until_complete(self.loop.sock_recv(rsock, 1024))
self.assertEqual(b'1', data)
rsock.close()
self.loop.run_until_complete(proto.done)
self.assertEqual('CLOSED', proto.state)
def test_write_pty(self):
master, slave = os.openpty()
os.set_blocking(master, False)
slave_write_obj = io.open(slave, 'wb', 0)
proto = MyWritePipeProto(loop=self.loop)
connect = self.loop.connect_write_pipe(lambda: proto, slave_write_obj)
transport, p = self.loop.run_until_complete(connect)
self.assertIs(p, proto)
self.assertIs(transport, proto.transport)
self.assertEqual('CONNECTED', proto.state)
transport.write(b'1')
data = bytearray()
def reader(data):
try:
chunk = os.read(master, 1024)
except BlockingIOError:
return len(data)
data += chunk
return len(data)
tb.run_until(self.loop, lambda: reader(data) >= 1,
timeout=10)
self.assertEqual(b'1', data)
transport.write(b'2345')
tb.run_until(self.loop, lambda: reader(data) >= 5,
timeout=10)
self.assertEqual(b'12345', data)
self.assertEqual('CONNECTED', proto.state)
os.close(master)
# extra info is available
self.assertIsNotNone(proto.transport.get_extra_info('pipe'))
# close connection
proto.transport.close()
self.loop.run_until_complete(proto.done)
self.assertEqual('CLOSED', proto.state)
def test_write_buffer_full(self):
rpipe, wpipe = os.pipe()
pipeobj = io.open(wpipe, 'wb', 1024)
proto = MyWritePipeProto(loop=self.loop)
connect = self.loop.connect_write_pipe(lambda: proto, pipeobj)
transport, p = self.loop.run_until_complete(connect)
self.assertIs(p, proto)
self.assertIs(transport, proto.transport)
self.assertEqual('CONNECTED', proto.state)
for i in range(32):
transport.write(b'x' * 32768)
if proto.paused:
transport.write(b'x' * 32768)
break
else:
self.fail("Didn't reach a full buffer")
os.close(rpipe)
self.loop.run_until_complete(asyncio.wait_for(proto.done, 1))
self.assertEqual('CLOSED', proto.state)
class Test_UV_Pipes(_BasePipeTest, tb.UVTestCase):
pass
class Test_AIO_Pipes(_BasePipeTest, tb.AIOTestCase):
pass
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