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Make event triggering robust to (un)registration....
Make event triggering robust to (un)registration. Event callbacks can register or unregister new callbacks for the same event while executing, and the previous triggering implementation allowed for event callbacks to be inadvertently skipped. The fix is to make a copy of the list of callbacks before executing any of them. With this change, the resulting semantics are simple: any callbacks registered before triggering are executed, and any new callbacks registered are only visible at the next triggering of the event. Note that this could potentially break existing callers who expected newly-appended callbacks were immediately executed. Fixes #9447. Originally based on a patch by @marksandler2.

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test_splitinput.py
42 lines | 1.4 KiB | text/x-python | PythonLexer
# coding: utf-8
import nose.tools as nt
from IPython.core.splitinput import split_user_input, LineInfo
from IPython.testing import tools as tt
from IPython.utils import py3compat
tests = [
('x=1', ('', '', 'x', '=1')),
('?', ('', '?', '', '')),
('??', ('', '??', '', '')),
(' ?', (' ', '?', '', '')),
(' ??', (' ', '??', '', '')),
('??x', ('', '??', 'x', '')),
('?x=1', ('', '?', 'x', '=1')),
('!ls', ('', '!', 'ls', '')),
(' !ls', (' ', '!', 'ls', '')),
('!!ls', ('', '!!', 'ls', '')),
(' !!ls', (' ', '!!', 'ls', '')),
(',ls', ('', ',', 'ls', '')),
(';ls', ('', ';', 'ls', '')),
(' ;ls', (' ', ';', 'ls', '')),
('f.g(x)', ('', '', 'f.g', '(x)')),
('f.g (x)', ('', '', 'f.g', '(x)')),
('?%hist1', ('', '?', '%hist1', '')),
('?%%hist2', ('', '?', '%%hist2', '')),
('??%hist3', ('', '??', '%hist3', '')),
('??%%hist4', ('', '??', '%%hist4', '')),
('?x*', ('', '?', 'x*', '')),
]
if py3compat.PY3:
tests.append((u"Pérez Fernando", (u'', u'', u'Pérez', u'Fernando')))
else:
tests.append((u"Pérez Fernando", (u'', u'', u'P', u'érez Fernando')))
def test_split_user_input():
return tt.check_pairs(split_user_input, tests)
def test_LineInfo():
"""Simple test for LineInfo construction and str()"""
linfo = LineInfo(' %cd /home')
nt.assert_equal(str(linfo), 'LineInfo [ |%|cd|/home]')