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/opt/imh-python/lib/python3.9/site-packages/IPython/core/tests/

/opt/imh-python/lib/python3.9/site-packages/IPython/core/tests

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daft_extension/	-	0755	rm
__pycache__/	-	0755	rm
2x2.jpg	331	0644	edit dl rm
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bad_all.py	206	0644	edit dl rm
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print_argv.py	32	0644	edit dl rm
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simpleerr.py	583	0644	edit dl rm
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test_application.py	2245	0644	edit dl rm
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test_completerlib.py	6507	0644	edit dl rm
test_debugger.py	14501	0644	edit dl rm
test_display.py	15946	0644	edit dl rm
test_displayhook.py	3593	0644	edit dl rm
test_events.py	2287	0644	edit dl rm
test_exceptiongroup_tb.py	3599	0644	edit dl rm
test_extension.py	3026	0644	edit dl rm
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test_imports.py	1153	0644	edit dl rm
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test_magic_terminal.py	5996	0644	edit dl rm
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test_paths.py	7081	0644	edit dl rm
test_prefilter.py	4214	0644	edit dl rm
test_profile.py	5064	0644	edit dl rm
test_prompts.py	845	0644	edit dl rm
test_pylabtools.py	7880	0644	edit dl rm
test_run.py	19369	0644	edit dl rm
test_shellapp.py	1892	0644	edit dl rm
test_splitinput.py	1227	0644	edit dl rm
test_ultratb.py	12026	0644	edit dl rm
__init__.py	0	0644	edit dl rm

Edit: /opt/imh-python/lib/python3.9/site-packages/IPython/core/tests/test_events.py (2287B)

import unittest
from unittest.mock import Mock

from IPython.core import events
import IPython.testing.tools as tt

@events._define_event
def ping_received():
    pass

@events._define_event
def event_with_argument(argument):
    pass

class CallbackTests(unittest.TestCase):
    def setUp(self):
        self.em = events.EventManager(get_ipython(),
                                      {'ping_received': ping_received,
                                       'event_with_argument': event_with_argument})

def test_register_unregister(self):
        cb = Mock()

self.em.register('ping_received', cb)        
        self.em.trigger('ping_received')
        self.assertEqual(cb.call_count, 1)
        
        self.em.unregister('ping_received', cb)
        self.em.trigger('ping_received')
        self.assertEqual(cb.call_count, 1)

def test_bare_function_missed_unregister(self):
        def cb1():
            ...

def cb2():
            ...

self.em.register("ping_received", cb1)
        self.assertRaises(ValueError, self.em.unregister, "ping_received", cb2)
        self.em.unregister("ping_received", cb1)

def test_cb_error(self):
        cb = Mock(side_effect=ValueError)
        self.em.register('ping_received', cb)
        with tt.AssertPrints("Error in callback"):
            self.em.trigger('ping_received')

def test_cb_keyboard_interrupt(self):
        cb = Mock(side_effect=KeyboardInterrupt)
        self.em.register('ping_received', cb)
        with tt.AssertPrints("Error in callback"):
            self.em.trigger('ping_received')

def test_unregister_during_callback(self):
        invoked = [False] * 3
        
        def func1(*_):
            invoked[0] = True
            self.em.unregister('ping_received', func1)
            self.em.register('ping_received', func3)

def func2(*_):
            invoked[1] = True
            self.em.unregister('ping_received', func2)

def func3(*_):
            invoked[2] = True
            
        self.em.register('ping_received', func1)
        self.em.register('ping_received', func2)

self.em.trigger('ping_received')
        self.assertEqual([True, True, False], invoked)
        self.assertEqual([func3], self.em.callbacks['ping_received'])

cmd: