1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
# Copyright (C) 2010, 2011 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import threading
from bzrlib import (
tests,
thread,
)
class TestCatchingExceptionThread(tests.TestCase):
def test_start_and_join_smoke_test(self):
def do_nothing():
pass
tt = thread.CatchingExceptionThread(target=do_nothing)
tt.start()
tt.join()
def test_exception_is_re_raised(self):
class MyException(Exception):
pass
def raise_my_exception():
raise MyException()
tt = thread.CatchingExceptionThread(target=raise_my_exception)
tt.start()
self.assertRaises(MyException, tt.join)
def test_join_when_no_exception(self):
resume = threading.Event()
class MyException(Exception):
pass
def raise_my_exception():
# Wait for the test to tell us to resume
resume.wait()
# Now we can raise
raise MyException()
tt = thread.CatchingExceptionThread(target=raise_my_exception)
tt.start()
tt.join(timeout=0)
self.assertIs(None, tt.exception)
resume.set()
self.assertRaises(MyException, tt.join)
|