/opt/imh-python/lib/python3.9/site-packages/tornado/test
Edit: /opt/imh-python/lib/python3.9/site-packages/tornado/test/tcpserver_test.py (6674B)
import socket
import subprocess
import sys
import textwrap
import unittest
from tornado.escape import utf8, to_unicode
from tornado import gen
from tornado.iostream import IOStream
from tornado.log import app_log
from tornado.tcpserver import TCPServer
from tornado.test.util import skipIfNonUnix
from tornado.testing import AsyncTestCase, ExpectLog, bind_unused_port, gen_test
class TCPServerTest(AsyncTestCase):
@gen_test
def test_handle_stream_coroutine_logging(self):
# handle_stream may be a coroutine and any exception in its
# Future will be logged.
class TestServer(TCPServer):
@gen.coroutine
def handle_stream(self, stream, address):
yield stream.read_bytes(len(b"hello"))
stream.close()
1 / 0
server = client = None
try:
sock, port = bind_unused_port()
server = TestServer()
server.add_socket(sock)
client = IOStream(socket.socket())
with ExpectLog(app_log, "Exception in callback"):
yield client.connect(("localhost", port))
yield client.write(b"hello")
yield client.read_until_close()
yield gen.moment
finally:
if server is not None:
server.stop()
if client is not None:
client.close()
@gen_test
def test_handle_stream_native_coroutine(self):
# handle_stream may be a native coroutine.
class TestServer(TCPServer):
async def handle_stream(self, stream, address):
stream.write(b"data")
stream.close()
sock, port = bind_unused_port()
server = TestServer()
server.add_socket(sock)
client = IOStream(socket.socket())
yield client.connect(("localhost", port))
result = yield client.read_until_close()
self.assertEqual(result, b"data")
server.stop()
client.close()
def test_stop_twice(self):
sock, port = bind_unused_port()
server = TCPServer()
server.add_socket(sock)
server.stop()
server.stop()
@gen_test
def test_stop_in_callback(self):
# Issue #2069: calling server.stop() in a loop callback should not
# raise EBADF when the loop handles other server connection
# requests in the same loop iteration
class TestServer(TCPServer):
@gen.coroutine
def handle_stream(self, stream, address):
server.stop() # type: ignore
yield stream.read_until_close()
sock, port = bind_unused_port()
server = TestServer()
server.add_socket(sock)
server_addr = ("localhost", port)
N = 40
clients = [IOStream(socket.socket()) for i in range(N)]
connected_clients = []
@gen.coroutine
def connect(c):
try:
yield c.connect(server_addr)
except EnvironmentError:
pass
else:
connected_clients.append(c)
yield [connect(c) for c in clients]
self.assertGreater(len(connected_clients), 0, "all clients failed connecting")
try:
if len(connected_clients) == N:
# Ideally we'd make the test deterministic, but we're testing
# for a race condition in combination with the system's TCP stack...
self.skipTest(
"at least one client should fail connecting "
"for the test to be meaningful"
)
finally:
for c in connected_clients:
c.close()
# Here tearDown() would re-raise the EBADF encountered in the IO loop
@skipIfNonUnix
class TestMultiprocess(unittest.TestCase):
# These tests verify that the two multiprocess examples from the
# TCPServer docs work. Both tests start a server with three worker
# processes, each of which prints its task id to stdout (a single
# byte, so we don't have to worry about atomicity of the shared
# stdout stream) and then exits.
def run_subproc(self, code):
proc = subprocess.Popen(
sys.executable, stdin=subprocess.PIPE, stdout=subprocess.PIPE
)
proc.stdin.write(utf8(code))
proc.stdin.close()
proc.wait()
stdout = proc.stdout.read()
proc.stdout.close()
if proc.returncode != 0:
raise RuntimeError(
"Process returned %d. stdout=%r" % (proc.returncode, stdout)
)
return to_unicode(stdout)
def test_single(self):
# As a sanity check, run the single-process version through this test
# harness too.
code = textwrap.dedent(
"""
from tornado.ioloop import IOLoop
from tornado.tcpserver import TCPServer
server = TCPServer()
server.listen(0, address='127.0.0.1')
IOLoop.current().run_sync(lambda: None)
print('012', end='')
"""
)
out = self.run_subproc(code)
self.assertEqual("".join(sorted(out)), "012")
def test_simple(self):
code = textwrap.dedent(
"""
from tornado.ioloop import IOLoop
from tornado.process import task_id
from tornado.tcpserver import TCPServer
server = TCPServer()
server.bind(0, address='127.0.0.1')
server.start(3)
IOLoop.current().run_sync(lambda: None)
print(task_id(), end='')
"""
)
out = self.run_subproc(code)
self.assertEqual("".join(sorted(out)), "012")
def test_advanced(self):
code = textwrap.dedent(
"""
from tornado.ioloop import IOLoop
from tornado.netutil import bind_sockets
from tornado.process import fork_processes, task_id
from tornado.ioloop import IOLoop
from tornado.tcpserver import TCPServer
sockets = bind_sockets(0, address='127.0.0.1')
fork_processes(3)
server = TCPServer()
server.add_sockets(sockets)
IOLoop.current().run_sync(lambda: None)
print(task_id(), end='')
"""
)
out = self.run_subproc(code)
self.assertEqual("".join(sorted(out)), "012")