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How to use add_listener method in Molotov

Best Python code snippet using molotov_python

event_manager_test.py

Source:event_manager_test.py

2from mock import Mock3from pokemongo_bot.event_manager import EventManager, Event4class EventManagerTest(unittest.TestCase):5    @staticmethod6    def test_add_listener():7        event_manager = EventManager()8        test_listener = Mock()9        event_manager.add_listener('test', test_listener)10        assert isinstance(event_manager.events['test'], Event)11        assert len(event_manager.events['test'].listeners[0]) == 112    @staticmethod13    def test_add_listener_priorities():14        event_manager = EventManager()15        test_listener = Mock()16        event_manager.add_listener('test', test_listener, priority=-100)17        event_manager.add_listener('test', test_listener, priority=100)18        assert isinstance(event_manager.events['test'], Event)19        assert len(event_manager.events['test'].listeners[-100]) == 120        assert len(event_manager.events['test'].listeners[100]) == 121    @staticmethod22    def test_remove_listener():23        event_manager = EventManager()24        test_listener = Mock()25        event_manager.add_listener('test', test_listener, priority=10)26        assert isinstance(event_manager.events['test'], Event)27        assert len(event_manager.events['test'].listeners) == 128        event_manager.remove_listener('test', test_listener)29        assert isinstance(event_manager.events['test'], Event)30        assert len(event_manager.events['test'].listeners[10]) == 031    @staticmethod32    def test_get_registered_events():33        event_manager = EventManager()34        test_listener = Mock()35        event_manager.add_listener('test', test_listener)36        events = event_manager.get_registered_events()37        assert len(events) == 138        assert 'test' in events39    @staticmethod40    def test_fire():41        event_manager = EventManager()42        # pylint: disable=unused-argument43        def test_listener(value=None):44            return {45                'value': 'first'46            }47        # pylint: disable=unused-argument48        def test_listener_late(value=None):49            return {50                'value': 'second'51            }52        event_manager.add_listener('test', test_listener_late, priority=100)53        event_manager.add_listener('test', test_listener, priority=-100)54        return_data = event_manager.fire('test', value=None)55        assert return_data['value'] == 'second'56    @staticmethod57    def test_fire_cancelled():58        event_manager = EventManager()59        def test_listener():60            return {61                'value': 'first'62            }63        def test_listener_late():64            return False65        event_manager.add_listener('test', test_listener_late, priority=100)66        event_manager.add_listener('test', test_listener, priority=-100)67        return_data = event_manager.fire('test', value=None)68        assert return_data is False69    @staticmethod70    def test_fire_no_listeners():71        import sys72        from io import StringIO73        out = StringIO()74        sys.stdout = out75        event_manager = EventManager()76        event_manager.events['test'] = Event('test')77        event_manager.fire('test', value=None)78        assert 'WARNING: No handler has registered to handle event "test"' in out.getvalue().strip()79    @staticmethod80    def test_fire_with_context():81        event_manager = EventManager()82        def test_listener(bot=None):83            bot()84        event_manager.add_listener('test', test_listener, priority=-100)85        bot = Mock()86        event_manager.fire_with_context('test', bot)87        bot.assert_called_once()88    @staticmethod89    def test_event_pipeline_empty_output():90        import sys91        from io import StringIO92        out = StringIO()93        sys.stdout = out94        event_manager = EventManager()95        event_manager.events['test'] = Event('test')96        event_manager.events['test'].listeners['test_listener'] = []97        event_manager.print_all_event_pipelines()98        assert 'Event pipeline for "test" is empty.' in out.getvalue().strip()99    @staticmethod100    def test_event_pipeline_no_listeners():101        import sys102        from io import StringIO103        out = StringIO()104        sys.stdout = out105        event_manager = EventManager()106        event_manager.events['test'] = Event('test')107        event_manager.events['test'].listeners['test_listener'] = []108        event_manager.print_all_event_pipelines()109        assert 'Event pipeline for "test" is empty.' in out.getvalue().strip()110    @staticmethod111    def test_event_pipeline_output():112        import sys113        from io import StringIO114        out = StringIO()115        sys.stdout = out116        event_manager = EventManager()117        def test_listener_1(bot=None):118            bot()119        def test_listener_2(bot=None):120            bot()121        def test_listener_3(bot=None):122            bot()123        def test_listener_4(bot=None):124            bot()125        event_manager.add_listener('test1', test_listener_1, priority=-100)126        event_manager.add_listener('test1', test_listener_2, priority=0)127        event_manager.add_listener('test1', test_listener_3, priority=0)128        event_manager.add_listener('test1', test_listener_4, priority=100)129        event_manager.add_listener('test2', test_listener_1, priority=100)130        event_manager.print_all_event_pipelines()131        assert 'Event pipeline for "test1":' in out.getvalue().strip()132        assert '-100 (test_listener_1) -> 0 (test_listener_2 -> test_listener_3) -> 100 (test_listener_4)' in out.getvalue().strip()133        assert 'Event pipeline for "test2":' in out.getvalue().strip()...

test_events.py

Source:test_events.py

...25        self.manager = DOMEventFlowManager(self.doc)26    def get_node(self, expr):27        [node] = self.engine.evaluate(expr, self.doc).value28        return node29    def add_listener(self, target_expr, event_type, listener, capture=False):30        target = self.get_node(target_expr)31        self.manager.add_event_listener(target, event_type, listener, capture)32    def make_incr_handler(self, data, key):33        def handler(event):34            data.setdefault(key, 0)35            data[key] += 136        return handler37    def test_dispatch_events_no_listeners(self):38        self.manager.dispatch_event(self.get_node('/'), ToyEvent())39        self.manager.dispatch_event(self.get_node('//elem1'), ToyEvent())40        self.manager.dispatch_event(self.get_node('//elem2'), ToyEvent())41        self.manager.dispatch_event(self.get_node('//elem3'), ToyEvent())42    def test_dispatch_event_target_listeners(self):43        data = {}44        listener1 = self.make_incr_handler(data, 'listener1')45        listener2 = self.make_incr_handler(data, 'listener2')46        self.add_listener('//elem1', 'toy-event', listener1)47        self.add_listener('//elem2', 'toy-event', listener1)48        self.add_listener('//elem3', 'toy-event', listener1)49        self.add_listener('//elem2', 'toy-event', listener2)50        self.assertEqual(data, {})51        self.manager.dispatch_event(self.get_node('//elem2'), ToyEvent())52        self.assertEqual(data, {'listener1': 1, 'listener2': 1})53    def test_dispatch_event_target_and_bubble_listeners(self):54        data = {}55        listener1 = self.make_incr_handler(data, 'listener1')56        listener2 = self.make_incr_handler(data, 'listener2')57        self.add_listener('//elem1', 'bubble-event', listener1)58        self.add_listener('//elem2', 'bubble-event', listener1)59        self.add_listener('//elem3', 'bubble-event', listener1)60        self.add_listener('//elem2', 'bubble-event', listener2)61        self.assertEqual(data, {})62        self.manager.dispatch_event(self.get_node('//elem2'), BubbleEvent())63        self.assertEqual(data, {'listener1': 2, 'listener2': 1})64    def test_dispatch_event_bubble_listeners(self):65        data = {}66        listener1 = self.make_incr_handler(data, 'listener1')67        self.add_listener('//elem1', 'bubble-event', listener1)68        self.add_listener('//elem2', 'bubble-event', listener1)69        self.assertEqual(data, {})70        self.manager.dispatch_event(self.get_node('//elem3'), BubbleEvent())71        self.assertEqual(data, {'listener1': 2})72    def test_dispatch_event_target_capture_listeners(self):73        data = {}74        listener1 = self.make_incr_handler(data, 'listener1')75        listener2 = self.make_incr_handler(data, 'listener2')76        self.add_listener('//elem1', 'toy-event', listener1, True)77        self.add_listener('//elem2', 'toy-event', listener1, True)78        self.add_listener('//elem3', 'toy-event', listener1, True)79        self.add_listener('//elem2', 'toy-event', listener2)80        self.assertEqual(data, {})81        self.manager.dispatch_event(self.get_node('//elem2'), ToyEvent())82        self.assertEqual(data, {'listener1': 1, 'listener2': 1})83    def test_dispatch_event_target_capture_bubble_listeners(self):84        data = {}85        listener1 = self.make_incr_handler(data, 'listener1')86        listener2 = self.make_incr_handler(data, 'listener2')87        self.add_listener('//elem1', 'bubble-event', listener1, True)88        self.add_listener('//elem2', 'bubble-event', listener1, True)89        self.add_listener('//elem3', 'bubble-event', listener1, True)90        self.add_listener('//elem1', 'bubble-event', listener2)91        self.add_listener('//elem2', 'bubble-event', listener2)92        self.add_listener('//elem3', 'bubble-event', listener2)93        self.assertEqual(data, {})94        self.manager.dispatch_event(self.get_node('//elem2'), BubbleEvent())...

test_event_dispatcher.py

Source:test_event_dispatcher.py

...24def test_initial_state(dispatcher):25    assert {} == dispatcher.get_listeners()26    assert not dispatcher.has_listeners(PRE_FOO)27    assert not dispatcher.has_listeners(POST_FOO)28def test_add_listener(dispatcher, listener):29    dispatcher.add_listener(PRE_FOO, listener.pre_foo)30    dispatcher.add_listener(POST_FOO, listener.post_foo)31    assert dispatcher.has_listeners()32    assert dispatcher.has_listeners(PRE_FOO)33    assert dispatcher.has_listeners(POST_FOO)34    assert len(dispatcher.get_listeners(PRE_FOO)) == 135    assert len(dispatcher.get_listeners(POST_FOO)) == 136    assert len(dispatcher.get_listeners()) == 237def test_get_listeners_sorts_by_priority(dispatcher):38    listener1 = EventListener()39    listener2 = EventListener()40    listener3 = EventListener()41    dispatcher.add_listener(PRE_FOO, listener1.pre_foo, -10)42    dispatcher.add_listener(PRE_FOO, listener2.pre_foo, 10)43    dispatcher.add_listener(PRE_FOO, listener3.pre_foo)44    expected = [listener2.pre_foo, listener3.pre_foo, listener1.pre_foo]45    assert expected == dispatcher.get_listeners(PRE_FOO)46def test_get_all_listeners_sorts_by_priority(dispatcher):47    listener1 = EventListener()48    listener2 = EventListener()49    listener3 = EventListener()50    listener4 = EventListener()51    listener5 = EventListener()52    listener6 = EventListener()53    dispatcher.add_listener(PRE_FOO, listener1.pre_foo, -10)54    dispatcher.add_listener(PRE_FOO, listener2.pre_foo)55    dispatcher.add_listener(PRE_FOO, listener3.pre_foo, 10)56    dispatcher.add_listener(POST_FOO, listener4.pre_foo, -10)57    dispatcher.add_listener(POST_FOO, listener5.pre_foo)58    dispatcher.add_listener(POST_FOO, listener6.pre_foo, 10)59    expected = {60        PRE_FOO: [listener3.pre_foo, listener2.pre_foo, listener1.pre_foo],61        POST_FOO: [listener6.pre_foo, listener5.pre_foo, listener4.pre_foo],62    }63    assert dispatcher.get_listeners() == expected64def test_get_listener_priority(dispatcher):65    listener1 = EventListener()66    listener2 = EventListener()67    dispatcher.add_listener(PRE_FOO, listener1.pre_foo, -10)68    dispatcher.add_listener(PRE_FOO, listener2.pre_foo)69    assert dispatcher.get_listener_priority(PRE_FOO, listener1.pre_foo) == -1070    assert dispatcher.get_listener_priority(PRE_FOO, listener2.pre_foo) == 071    assert dispatcher.get_listener_priority(PRE_BAR, listener2.pre_foo) is None72def test_dispatch(dispatcher, listener):73    dispatcher.add_listener(PRE_FOO, listener.pre_foo)74    dispatcher.add_listener(POST_FOO, listener.post_foo)75    dispatcher.dispatch(Event(), PRE_FOO)76    assert listener.pre_foo_invoked77    assert not listener.post_foo_invoked78def test_stop_event_propagation(dispatcher, listener):79    other_listener = EventListener()80    dispatcher.add_listener(POST_FOO, listener.post_foo, 10)81    dispatcher.add_listener(POST_FOO, other_listener.post_foo)82    dispatcher.dispatch(Event(), POST_FOO)83    assert listener.post_foo_invoked...

bindable_variable_demo.py

Source:bindable_variable_demo.py

...14        print("Variable changed: name={}, old_val={}, new_val={}".format(var.name, old_val, new_val))15    # Basic manipulations16    print()17    v = Var(42, name="age")18    v.add_listener(_bindable_var_changed)19    print("::Setting age to 23 ...")20    v.value = 2321    print("::Incrementing age with v.value += 1 ...")22    v.value += 123    print("::Incrementing age with v += 1 ...")24    v += 125    # new_value-only notifications26    print()27    v = Var("Title")28    v.add_listener(print, value_only=True)29    print("::Notification can optionally have one argument, the new value ...")30    v.value = "New Title"31    # No argument notifications32    print()33    v = Var("Something")34    v.add_listener(print, no_args=True)35    print("::Notification will be called with no arguments ...")36    v.value = "Else"37    print("::Blank line above? Value is now", v.value)38    # Value is itself mutable39    print()40    v = Var()41    v.add_listener(print)42    v.value = ["cat", "dog", "elephant"]43    print("::No notification if list item is changed directly ...")44    v.value.append("lion")45    print("::List is now", v.value)46    print("::Notifications happen at end of 'with' construct ...")47    print("::Note that it is not possible to separate old value and new value.")48    with v:49        v.value[2] = "mouse"50        v.value[3] = "gerbil"51        v.value.append("fish")52    print("::An ugly way to abort notifications according to some test ...")53    with v as unchanged:54        if "some truth test":55            raise unchanged56        else:57            v.value.append("chimpanze")58    # Using the FormattableVar59    person_name = Var("Joe")60    person_age = Var(23)61    fv = FormattableVar("{} is {} years old", [person_name, person_age])62    fv.add_listener(print, value_only=True)63    person_age += 164    # Using tk65    import tkinter as tk66    root = tk.Tk()67    root.title("Bindable Variable")68    v = Var()69    v.add_listener(print, value_only=True)  # echo to console70    entry = tk.Entry(root, textvariable=v.tk_var())  # create a bound tk.Var71    entry.pack()72    v.value = "intial"73    tk.mainloop()74def demo_bindable_dictionary():75    def _bindable_dict_changed(d, key, old_val, new_val):76        print("Dictionary changed: key={}, old_val={}, new_val={}".format(key, old_val, new_val), flush=True)77    d = BindableDict()78    d.add_listener(_bindable_dict_changed)79    d.set("foo", "bar")80    d.set("cats", 4)81    with d:82        d.set("dogs", 0)83        print("before or after?", flush=True)84        d.set("cats", 5)85    a = {"pencil": "yellow", "cup": "full"}86    d.update(a)87if __name__ == "__main__":...

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