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import eventlet
from eventlet import greenio, hubs, greenthread
from eventlet.green import ssl
import tests
def check_hub():
# Clear through the descriptor queue
eventlet.sleep(0)
eventlet.sleep(0)
hub = hubs.get_hub()
for nm in 'get_readers', 'get_writers':
dct = getattr(hub, nm)()
assert not dct, "hub.%s not empty: %s" % (nm, dct)
hub.abort(wait=True)
assert not hub.running
class TestApi(tests.LimitedTestCase):
def test_tcp_listener(self):
socket = eventlet.listen(('0.0.0.0', 0))
assert socket.getsockname()[0] == '0.0.0.0'
socket.close()
check_hub()
def test_connect_tcp(self):
def accept_once(listenfd):
try:
conn, addr = listenfd.accept()
fd = conn.makefile(mode='wb')
conn.close()
fd.write(b'hello\n')
fd.close()
finally:
listenfd.close()
server = eventlet.listen(('0.0.0.0', 0))
eventlet.spawn_n(accept_once, server)
client = eventlet.connect(('127.0.0.1', server.getsockname()[1]))
fd = client.makefile('rb')
client.close()
assert fd.readline() == b'hello\n'
assert fd.read() == b''
fd.close()
check_hub()
@tests.skip_if_no_ssl
def test_connect_ssl(self):
def accept_once(listenfd):
try:
conn, addr = listenfd.accept()
conn.write(b'hello\r\n')
greenio.shutdown_safe(conn)
conn.close()
finally:
greenio.shutdown_safe(listenfd)
listenfd.close()
server = eventlet.wrap_ssl(
eventlet.listen(('0.0.0.0', 0)),
tests.private_key_file,
tests.certificate_file,
server_side=True
)
eventlet.spawn_n(accept_once, server)
raw_client = eventlet.connect(('127.0.0.1', server.getsockname()[1]))
client = ssl.wrap_socket(raw_client)
fd = client.makefile('rb', 8192)
assert fd.readline() == b'hello\r\n'
try:
self.assertEqual(b'', fd.read(10))
except greenio.SSL.ZeroReturnError:
# if it's a GreenSSL object it'll do this
pass
greenio.shutdown_safe(client)
client.close()
check_hub()
def test_001_trampoline_timeout(self):
server_sock = eventlet.listen(('127.0.0.1', 0))
bound_port = server_sock.getsockname()[1]
def server(sock):
client, addr = sock.accept()
eventlet.sleep(0.1)
server_evt = eventlet.spawn(server, server_sock)
eventlet.sleep(0)
try:
desc = eventlet.connect(('127.0.0.1', bound_port))
hubs.trampoline(desc, read=True, write=False, timeout=0.001)
except eventlet.Timeout:
pass # test passed
else:
assert False, "Didn't timeout"
server_evt.wait()
check_hub()
def test_timeout_cancel(self):
server = eventlet.listen(('0.0.0.0', 0))
bound_port = server.getsockname()[1]
done = [False]
def client_closer(sock):
while True:
(conn, addr) = sock.accept()
conn.close()
def go():
desc = eventlet.connect(('127.0.0.1', bound_port))
try:
hubs.trampoline(desc, read=True, timeout=0.1)
except eventlet.Timeout:
assert False, "Timed out"
server.close()
desc.close()
done[0] = True
greenthread.spawn_after_local(0, go)
server_coro = eventlet.spawn(client_closer, server)
while not done[0]:
eventlet.sleep(0)
eventlet.kill(server_coro)
check_hub()
def test_killing_dormant(self):
DELAY = 0.1
state = []
def test():
try:
state.append('start')
eventlet.sleep(DELAY)
except:
state.append('except')
# catching GreenletExit
pass
# when switching to hub, hub makes itself the parent of this greenlet,
# thus after the function's done, the control will go to the parent
eventlet.sleep(0)
state.append('finished')
g = eventlet.spawn(test)
eventlet.sleep(DELAY / 2)
self.assertEqual(state, ['start'])
eventlet.kill(g)
# will not get there, unless switching is explicitly scheduled by kill
self.assertEqual(state, ['start', 'except'])
eventlet.sleep(DELAY)
self.assertEqual(state, ['start', 'except', 'finished'])
def test_nested_with_timeout(self):
def func():
return eventlet.with_timeout(0.2, eventlet.sleep, 2, timeout_value=1)
try:
eventlet.with_timeout(0.1, func)
self.fail(u'Expected Timeout')
except eventlet.Timeout:
pass
def test_wrap_is_timeout():
class A(object):
pass
obj = eventlet.wrap_is_timeout(A)()
tests.check_is_timeout(obj)
def test_timeouterror_deprecated():
# https://github.com/eventlet/eventlet/issues/378
code = '''import eventlet; eventlet.Timeout(1).cancel(); print('pass')'''
args = ['-Werror:eventlet.Timeout:DeprecationWarning', '-c', code]
tests.run_python(path=None, args=args, expect_pass=True)
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