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Viewing changes to bzrlib/tests/test_thread.py

  • Committer: Vincent Ladeuil
  • Date: 2011-02-08 15:54:40 UTC
  • mto: This revision was merged to the branch mainline in revision 5655.
  • Revision ID: v.ladeuil+lp@free.fr-20110208155440-lns0pivfv8vskxji
Split ThreadWithException out of the tests hierarchy.

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bzrlib/tests/test_thread.py
 
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# Copyright (C) 2010, 2011 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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import threading
 
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from bzrlib import (
 
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    tests,
 
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    thread,
 
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    )
 
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class TestThreadWithException(tests.TestCase):
 
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    def test_start_and_join_smoke_test(self):
 
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        def do_nothing():
 
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            pass
 
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        tt = thread.ThreadWithException(target=do_nothing)
 
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        tt.start()
 
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        tt.join()
 
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    def test_exception_is_re_raised(self):
 
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        class MyException(Exception):
 
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            pass
 
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        def raise_my_exception():
 
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            raise MyException()
 
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        tt = thread.ThreadWithException(target=raise_my_exception)
 
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        tt.start()
 
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        self.assertRaises(MyException, tt.join)
 
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    def test_join_when_no_exception(self):
 
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        resume = threading.Event()
 
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        class MyException(Exception):
 
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            pass
 
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        def raise_my_exception():
 
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            # Wait for the test to tell us to resume
 
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            resume.wait()
 
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            # Now we can raise
 
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            raise MyException()
 
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        tt = thread.ThreadWithException(target=raise_my_exception)
 
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        tt.start()
 
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        tt.join(timeout=0)
 
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        self.assertIs(None, tt.exception)
 
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        resume.set()
 
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        self.assertRaises(MyException, tt.join)
 
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