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import errno
import socket
from unittest.mock import Mock, patch
import pytest
import t.skip
from celery.contrib.rdb import Rdb, debugger, set_trace
from celery.utils.text import WhateverIO
class SockErr(socket.error):
errno = None
class test_Rdb:
@patch('celery.contrib.rdb.Rdb')
def test_debugger(self, Rdb):
x = debugger()
assert x
assert x is debugger()
@patch('celery.contrib.rdb.debugger')
@patch('celery.contrib.rdb._frame')
def test_set_trace(self, _frame, debugger):
assert set_trace(Mock())
assert set_trace()
debugger.return_value.set_trace.assert_called()
@patch('celery.contrib.rdb.Rdb.get_avail_port')
@t.skip.if_pypy
def test_rdb(self, get_avail_port):
sock = Mock()
get_avail_port.return_value = (sock, 8000)
sock.accept.return_value = (Mock(), ['helu'])
out = WhateverIO()
with Rdb(out=out) as rdb:
get_avail_port.assert_called()
assert 'helu' in out.getvalue()
# set_quit
with patch('sys.settrace') as settrace:
rdb.set_quit()
settrace.assert_called_with(None)
# set_trace
with patch('celery.contrib.rdb.Pdb.set_trace') as pset:
with patch('celery.contrib.rdb._frame'):
rdb.set_trace()
rdb.set_trace(Mock())
pset.side_effect = SockErr
pset.side_effect.errno = errno.ENOENT
with pytest.raises(SockErr):
rdb.set_trace()
# _close_session
rdb._close_session()
rdb.active = True
rdb._handle = None
rdb._client = None
rdb._sock = None
rdb._close_session()
# do_continue
rdb.set_continue = Mock()
rdb.do_continue(Mock())
rdb.set_continue.assert_called_with()
# do_quit
rdb.set_quit = Mock()
rdb.do_quit(Mock())
rdb.set_quit.assert_called_with()
@patch('socket.socket')
@t.skip.if_pypy
def test_get_avail_port(self, sock):
out = WhateverIO()
sock.return_value.accept.return_value = (Mock(), ['helu'])
with Rdb(out=out):
pass
with patch('celery.contrib.rdb.current_process') as curproc:
curproc.return_value.name = 'PoolWorker-10'
with Rdb(out=out):
pass
err = sock.return_value.bind.side_effect = SockErr()
err.errno = errno.ENOENT
with pytest.raises(SockErr):
with Rdb(out=out):
pass
err.errno = errno.EADDRINUSE
with pytest.raises(Exception):
with Rdb(out=out):
pass
called = [0]
def effect(*a, **kw):
try:
if called[0] > 50:
return True
raise err
finally:
called[0] += 1
sock.return_value.bind.side_effect = effect
with Rdb(out=out):
pass
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