[New-bugs-announce] [issue24694] callables registered in TestCase.addCleanup should be run before tearDown

[Charles-François Natali]

New submission from Charles-François Natali:

Consider this code:

-----------------------------------------------------
from __future__ import print_function

from pyccp.unittest import SafeTestCase


class MyTest(SafeTestCase):

    def setUp(self):
        print("setUp")

    def tearDown(self):
        print("tearDown")

    def test(self):
        print("creating")
        self.addCleanup(lambda: print("destroying"))
-----------------------------------------------------


When run:

setUp
creating
tearDown
destroying


We lose the LIFO ordering between between setUP and addCleanup, which is highly counter-intuitive, and almost always incorrect (despite addCleanup being docuemented to be run after tearDown).

----------
components: Library (Lib)
messages: 247196
nosy: neologix
priority: normal
severity: normal
status: open
title: callables registered in TestCase.addCleanup should be run before tearDown
type: behavior

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24694>
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