mirror of
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deeaac49e2
- Add requires_fork and requires_subprocess to more tests - Skip extension import tests if dlopen is not available - Don't assume that _testcapi is a shared extension - Skip a lot of socket tests that don't work on Emscripten - Skip mmap tests, mmap emulation is incomplete - venv does not work yet - Cannot get libc from executable The "entire" test suite is now passing on Emscripten with EMSDK from git head (91 suites are skipped).
294 lines
9.4 KiB
Python
294 lines
9.4 KiB
Python
# test asynchat
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from test import support
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from test.support import socket_helper
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from test.support import threading_helper
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import errno
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import socket
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import sys
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import threading
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import time
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import unittest
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import unittest.mock
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import warnings
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with warnings.catch_warnings():
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warnings.simplefilter('ignore', DeprecationWarning)
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import asynchat
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import asyncore
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support.requires_working_socket(module=True)
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HOST = socket_helper.HOST
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SERVER_QUIT = b'QUIT\n'
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class echo_server(threading.Thread):
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# parameter to determine the number of bytes passed back to the
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# client each send
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chunk_size = 1
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def __init__(self, event):
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threading.Thread.__init__(self)
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self.event = event
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.port = socket_helper.bind_port(self.sock)
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# This will be set if the client wants us to wait before echoing
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# data back.
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self.start_resend_event = None
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def run(self):
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self.sock.listen()
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self.event.set()
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conn, client = self.sock.accept()
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self.buffer = b""
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# collect data until quit message is seen
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while SERVER_QUIT not in self.buffer:
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data = conn.recv(1)
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if not data:
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break
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self.buffer = self.buffer + data
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# remove the SERVER_QUIT message
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self.buffer = self.buffer.replace(SERVER_QUIT, b'')
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if self.start_resend_event:
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self.start_resend_event.wait()
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# re-send entire set of collected data
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try:
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# this may fail on some tests, such as test_close_when_done,
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# since the client closes the channel when it's done sending
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while self.buffer:
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n = conn.send(self.buffer[:self.chunk_size])
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time.sleep(0.001)
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self.buffer = self.buffer[n:]
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except:
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pass
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conn.close()
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self.sock.close()
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class echo_client(asynchat.async_chat):
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def __init__(self, terminator, server_port):
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asynchat.async_chat.__init__(self)
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self.contents = []
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self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
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self.connect((HOST, server_port))
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self.set_terminator(terminator)
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self.buffer = b""
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def handle_connect(self):
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pass
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if sys.platform == 'darwin':
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# select.poll returns a select.POLLHUP at the end of the tests
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# on darwin, so just ignore it
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def handle_expt(self):
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pass
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def collect_incoming_data(self, data):
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self.buffer += data
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def found_terminator(self):
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self.contents.append(self.buffer)
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self.buffer = b""
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def start_echo_server():
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event = threading.Event()
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s = echo_server(event)
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s.start()
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event.wait()
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event.clear()
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time.sleep(0.01) # Give server time to start accepting.
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return s, event
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class TestAsynchat(unittest.TestCase):
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usepoll = False
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def setUp(self):
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self._threads = threading_helper.threading_setup()
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def tearDown(self):
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threading_helper.threading_cleanup(*self._threads)
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def line_terminator_check(self, term, server_chunk):
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event = threading.Event()
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s = echo_server(event)
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s.chunk_size = server_chunk
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s.start()
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event.wait()
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event.clear()
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time.sleep(0.01) # Give server time to start accepting.
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c = echo_client(term, s.port)
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c.push(b"hello ")
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c.push(b"world" + term)
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c.push(b"I'm not dead yet!" + term)
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c.push(SERVER_QUIT)
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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threading_helper.join_thread(s)
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self.assertEqual(c.contents, [b"hello world", b"I'm not dead yet!"])
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# the line terminator tests below check receiving variously-sized
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# chunks back from the server in order to exercise all branches of
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# async_chat.handle_read
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def test_line_terminator1(self):
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# test one-character terminator
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for l in (1, 2, 3):
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self.line_terminator_check(b'\n', l)
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def test_line_terminator2(self):
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# test two-character terminator
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for l in (1, 2, 3):
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self.line_terminator_check(b'\r\n', l)
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def test_line_terminator3(self):
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# test three-character terminator
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for l in (1, 2, 3):
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self.line_terminator_check(b'qqq', l)
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def numeric_terminator_check(self, termlen):
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# Try reading a fixed number of bytes
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s, event = start_echo_server()
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c = echo_client(termlen, s.port)
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data = b"hello world, I'm not dead yet!\n"
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c.push(data)
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c.push(SERVER_QUIT)
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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threading_helper.join_thread(s)
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self.assertEqual(c.contents, [data[:termlen]])
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def test_numeric_terminator1(self):
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# check that ints & longs both work (since type is
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# explicitly checked in async_chat.handle_read)
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self.numeric_terminator_check(1)
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def test_numeric_terminator2(self):
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self.numeric_terminator_check(6)
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def test_none_terminator(self):
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# Try reading a fixed number of bytes
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s, event = start_echo_server()
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c = echo_client(None, s.port)
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data = b"hello world, I'm not dead yet!\n"
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c.push(data)
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c.push(SERVER_QUIT)
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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threading_helper.join_thread(s)
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self.assertEqual(c.contents, [])
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self.assertEqual(c.buffer, data)
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def test_simple_producer(self):
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s, event = start_echo_server()
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c = echo_client(b'\n', s.port)
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data = b"hello world\nI'm not dead yet!\n"
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p = asynchat.simple_producer(data+SERVER_QUIT, buffer_size=8)
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c.push_with_producer(p)
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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threading_helper.join_thread(s)
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self.assertEqual(c.contents, [b"hello world", b"I'm not dead yet!"])
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def test_string_producer(self):
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s, event = start_echo_server()
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c = echo_client(b'\n', s.port)
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data = b"hello world\nI'm not dead yet!\n"
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c.push_with_producer(data+SERVER_QUIT)
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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threading_helper.join_thread(s)
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self.assertEqual(c.contents, [b"hello world", b"I'm not dead yet!"])
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def test_empty_line(self):
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# checks that empty lines are handled correctly
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s, event = start_echo_server()
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c = echo_client(b'\n', s.port)
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c.push(b"hello world\n\nI'm not dead yet!\n")
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c.push(SERVER_QUIT)
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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threading_helper.join_thread(s)
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self.assertEqual(c.contents,
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[b"hello world", b"", b"I'm not dead yet!"])
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def test_close_when_done(self):
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s, event = start_echo_server()
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s.start_resend_event = threading.Event()
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c = echo_client(b'\n', s.port)
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c.push(b"hello world\nI'm not dead yet!\n")
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c.push(SERVER_QUIT)
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c.close_when_done()
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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# Only allow the server to start echoing data back to the client after
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# the client has closed its connection. This prevents a race condition
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# where the server echoes all of its data before we can check that it
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# got any down below.
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s.start_resend_event.set()
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threading_helper.join_thread(s)
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self.assertEqual(c.contents, [])
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# the server might have been able to send a byte or two back, but this
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# at least checks that it received something and didn't just fail
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# (which could still result in the client not having received anything)
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self.assertGreater(len(s.buffer), 0)
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def test_push(self):
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# Issue #12523: push() should raise a TypeError if it doesn't get
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# a bytes string
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s, event = start_echo_server()
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c = echo_client(b'\n', s.port)
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data = b'bytes\n'
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c.push(data)
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c.push(bytearray(data))
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c.push(memoryview(data))
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self.assertRaises(TypeError, c.push, 10)
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self.assertRaises(TypeError, c.push, 'unicode')
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c.push(SERVER_QUIT)
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asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01)
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threading_helper.join_thread(s)
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self.assertEqual(c.contents, [b'bytes', b'bytes', b'bytes'])
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class TestAsynchat_WithPoll(TestAsynchat):
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usepoll = True
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class TestAsynchatMocked(unittest.TestCase):
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def test_blockingioerror(self):
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# Issue #16133: handle_read() must ignore BlockingIOError
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sock = unittest.mock.Mock()
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sock.recv.side_effect = BlockingIOError(errno.EAGAIN)
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dispatcher = asynchat.async_chat()
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dispatcher.set_socket(sock)
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self.addCleanup(dispatcher.del_channel)
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with unittest.mock.patch.object(dispatcher, 'handle_error') as error:
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dispatcher.handle_read()
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self.assertFalse(error.called)
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class TestHelperFunctions(unittest.TestCase):
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def test_find_prefix_at_end(self):
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self.assertEqual(asynchat.find_prefix_at_end("qwerty\r", "\r\n"), 1)
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self.assertEqual(asynchat.find_prefix_at_end("qwertydkjf", "\r\n"), 0)
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class TestNotConnected(unittest.TestCase):
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def test_disallow_negative_terminator(self):
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# Issue #11259
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client = asynchat.async_chat()
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self.assertRaises(ValueError, client.set_terminator, -1)
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if __name__ == "__main__":
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unittest.main()
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