upstream/ipython Files · IPython/core/tests/test_events.py

FIX: bare functions in callback registry on bogus unregister...

FIX: bare functions in callback registry on bogus unregister added checking for the case where the callback was wrapped by backcall, however if there are un-wrapped functions registered and a non-registered function is attempted to be unregistered then this fails by raise an uncaught AttributeError.

Fabio Niephaus - - Load All Authors

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             test_events.py
        
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        Fabio Niephaus
    
Use `backcall` and introduce `ExecutionRequest`

              r23996
            
      from backcall import callback_prototype

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
      import unittest

        Srinivas Reddy Thatiparthy
    
remove code specific to python2

              r23063
            
      from unittest.mock import Mock

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
        Thomas Kluyver
    
Rename callbacks -> events (mostly), fire -> trigger

              r15605
            
      from IPython.core import events

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
      import IPython.testing.tools as tt

        Fabio Niephaus
    
Use `backcall` and introduce `ExecutionRequest`

              r23996
            
        Fabio Niephaus
    
Ensure post event callbacks are always called....

              r23982
            
      @events._define_event

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
      def ping_received():

          pass

        Fabio Niephaus
    
Use `backcall` and introduce `ExecutionRequest`

              r23996
            
        Fabio Niephaus
    
Ensure post event callbacks are always called....

              r23982
            
      @events._define_event

      def event_with_argument(argument):

          pass

        Fabio Niephaus
    
Use `backcall` and introduce `ExecutionRequest`

              r23996
            
        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
      class CallbackTests(unittest.TestCase):

          def setUp(self):

        Fabio Niephaus
    
Ensure post event callbacks are always called....

              r23982
            
              self.em = events.EventManager(get_ipython(), {'ping_received': ping_received, 'event_with_argument': event_with_argument})

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
          def test_register_unregister(self):

              cb = Mock()

        Thomas Kluyver
    
Rename callbacks -> events (mostly), fire -> trigger

              r15605
            
              self.em.register('ping_received', cb)        

              self.em.trigger('ping_received')

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
              self.assertEqual(cb.call_count, 1)

        Thomas Kluyver
    
Rename callbacks -> events (mostly), fire -> trigger

              r15605
            
              self.em.unregister('ping_received', cb)

              self.em.trigger('ping_received')

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
              self.assertEqual(cb.call_count, 1)

          def test_cb_error(self):

              cb = Mock(side_effect=ValueError)

        Thomas Kluyver
    
Rename callbacks -> events (mostly), fire -> trigger

              r15605
            
              self.em.register('ping_received', cb)

        Thomas Kluyver
    
Add tests for callback infrastructure

              r15601
            
              with tt.AssertPrints("Error in callback"):

        Nathaniel J. Smith
    
Remove EventManager reset methods, because they violate encapsulation....

              r18547
            
                  self.em.trigger('ping_received')

        Craig Citro
    
Make event triggering robust to (un)registration....

              r22317
            
          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'])

        Fabio Niephaus
    
Ensure post event callbacks are always called....

              r23982
            
          def test_ignore_event_arguments_if_no_argument_required(self):

              call_count = [0]

              def event_with_no_argument():

                  call_count[0] += 1

        Fabio Niephaus
    
Use `backcall` and introduce `ExecutionRequest`

              r23996
            
              self.em.register('event_with_argument', event_with_no_argument)

        Fabio Niephaus
    
Ensure post event callbacks are always called....

              r23982
            
              self.em.trigger('event_with_argument', 'the argument')

              self.assertEqual(call_count[0], 1)

              self.em.unregister('event_with_argument', event_with_no_argument)

              self.em.trigger('ping_received')

              self.assertEqual(call_count[0], 1)

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Fabio Niephaus Use `backcall` and introduce `ExecutionRequest`	r23996	from backcall import callback_prototype
Thomas Kluyver Add tests for callback infrastructure	r15601	import unittest
Srinivas Reddy Thatiparthy remove code specific to python2	r23063	from unittest.mock import Mock
Thomas Kluyver Add tests for callback infrastructure	r15601
Thomas Kluyver Rename callbacks -> events (mostly), fire -> trigger	r15605	from IPython.core import events
Thomas Kluyver Add tests for callback infrastructure	r15601	import IPython.testing.tools as tt

Fabio Niephaus Use `backcall` and introduce `ExecutionRequest`	r23996
Fabio Niephaus Ensure post event callbacks are always called....	r23982	@events._define_event
Thomas Kluyver Add tests for callback infrastructure	r15601	def ping_received():
		pass

Fabio Niephaus Use `backcall` and introduce `ExecutionRequest`	r23996
Fabio Niephaus Ensure post event callbacks are always called....	r23982	@events._define_event
		def event_with_argument(argument):
		pass

Fabio Niephaus Use `backcall` and introduce `ExecutionRequest`	r23996
Thomas Kluyver Add tests for callback infrastructure	r15601	class CallbackTests(unittest.TestCase):
		def setUp(self):
Fabio Niephaus Ensure post event callbacks are always called....	r23982	self.em = events.EventManager(get_ipython(), {'ping_received': ping_received, 'event_with_argument': event_with_argument})
Thomas Kluyver Add tests for callback infrastructure	r15601
		def test_register_unregister(self):
		cb = Mock()

Thomas Kluyver Rename callbacks -> events (mostly), fire -> trigger	r15605	self.em.register('ping_received', cb)
		self.em.trigger('ping_received')
Thomas Kluyver Add tests for callback infrastructure	r15601	self.assertEqual(cb.call_count, 1)

Thomas Kluyver Rename callbacks -> events (mostly), fire -> trigger	r15605	self.em.unregister('ping_received', cb)
		self.em.trigger('ping_received')
Thomas Kluyver Add tests for callback infrastructure	r15601	self.assertEqual(cb.call_count, 1)

		def test_cb_error(self):
		cb = Mock(side_effect=ValueError)
Thomas Kluyver Rename callbacks -> events (mostly), fire -> trigger	r15605	self.em.register('ping_received', cb)
Thomas Kluyver Add tests for callback infrastructure	r15601	with tt.AssertPrints("Error in callback"):
Nathaniel J. Smith Remove EventManager reset methods, because they violate encapsulation....	r18547	self.em.trigger('ping_received')
Craig Citro Make event triggering robust to (un)registration....	r22317
		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'])
Fabio Niephaus Ensure post event callbacks are always called....	r23982
		def test_ignore_event_arguments_if_no_argument_required(self):
		call_count = [0]
		def event_with_no_argument():
		call_count[0] += 1

Fabio Niephaus Use `backcall` and introduce `ExecutionRequest`	r23996	self.em.register('event_with_argument', event_with_no_argument)
Fabio Niephaus Ensure post event callbacks are always called....	r23982	self.em.trigger('event_with_argument', 'the argument')
		self.assertEqual(call_count[0], 1)

		self.em.unregister('event_with_argument', event_with_no_argument)
		self.em.trigger('ping_received')
		self.assertEqual(call_count[0], 1)