def test_no_event_for_trigger():
"""test exception raising for not existing events"""
obs = Observable()
assert not obs.trigger("no_existing_event")
with pytest.raises(EventNotFound):
obs.off("no_existing_event")
def test_no_event_for_trigger():
"""test exception raising for not existing events"""
obs = Observable()
assert not obs.trigger("no_existing_event")
with pytest.raises(EventNotFound):
obs.off("no_existing_event")
def test_off():
"""test obs.off method"""
obs = Observable()
nose.assert_false(obs.events)
@obs.on("on_test")
def on_test():
pass
nose.assert_equals(obs.events['on_test'], [on_test])
nose.assert_true(obs.trigger("on_test"))
obs.off("on_test", on_test)
nose.assert_equals(obs.events['on_test'],[])
obs.off()
nose.assert_false(obs.events)
@obs.on("more_than_one_event")
def func1():
pass
@obs.on("more_than_one_event")
def func2():
pass
@obs.on("more_than_one_event")
def func3():
pass
nose.assert_equals(obs.events["more_than_one_event"], [func1, func2, func3])
obs.off("more_than_one_event", func2)
nose.assert_equals(obs.events["more_than_one_event"], [func1, func3])
obs.off("more_than_one_event")
nose.assert_equals(obs.events["more_than_one_event"], [])
def test_off_multiple_handlers():
"""test event unregistering with the off method and multiple handlers"""
obs = Observable()
results = []
def some_test(*args, **kw):
results.append(1)
def some_test_2(*args, **kw):
results.append(2)
obs.on("some_test", some_test, some_test_2)
assert len(obs._events["some_test"]) == 2
obs.off("some_test", some_test, some_test_2)
assert len(obs._events["some_test"]) == 0
assert not obs.trigger("some_test")
def test_off_multiple_handlers():
"""test event unregistering with the off method and multiple handlers"""
obs = Observable()
results = []
def some_test(*args, **kw):
results.append(1)
def some_test_2(*args, **kw):
results.append(2)
obs.on("some_test", some_test, some_test_2)
assert len(obs._events["some_test"]) == 2
obs.off("some_test", some_test, some_test_2)
assert len(obs._events["some_test"]) == 0
assert not obs.trigger("some_test")
def test_off_exceptions():
"""test exception raising in the off method"""
obs = Observable()
with pytest.raises(EventNotFound):
obs.off("non_existing_event")
@obs.on("some_event")
def some_assigned_handler():
pass
def some_non_assigned_handler():
pass
assert some_assigned_handler in obs._events["some_event"]
assert some_non_assigned_handler not in obs._events["some_event"]
with pytest.raises(HandlerNotFound):
obs.off("some_event", some_non_assigned_handler)
def test_off_exceptions():
"""test exception raising in the off method"""
obs = Observable()
with pytest.raises(EventNotFound):
obs.off("non_existing_event")
@obs.on("some_event")
def some_assigned_handler():
pass
def some_non_assigned_handler():
pass
assert some_assigned_handler in obs._events["some_event"]
assert some_non_assigned_handler not in obs._events["some_event"]
with pytest.raises(HandlerNotFound):
obs.off("some_event", some_non_assigned_handler)
def test_off_multiple_handlers():
"""test event unregistering with the off method and multiple handlers"""
obs = Observable()
nose.assert_false(obs.events)
results = []
def some_test(*args, **kw):
results.append(1)
def some_test_2(*args, **kw):
results.append(2)
obs.on('some_test', some_test, some_test_2)
nose.assert_equals(len(obs.events['some_test']), 2)
obs.off('some_test', some_test, some_test_2)
nose.assert_equals(len(obs.events['some_test']), 0)
nose.assert_false(obs.trigger('some_test'))
def test_off():
"""test obs.off method"""
obs = Observable()
@obs.on("on_test")
def on_test():
pass
assert obs._events["on_test"] == [on_test]
assert obs.trigger("on_test")
obs.off("on_test", on_test)
assert obs._events["on_test"] == []
obs.off()
assert not obs._events
@obs.on("more_than_one_event")
def func1():
pass
@obs.on("more_than_one_event")
def func2():
pass
@obs.on("more_than_one_event")
def func3():
pass
assert obs._events["more_than_one_event"] == [func1, func2, func3]
obs.off("more_than_one_event", func2)
assert obs._events["more_than_one_event"] == [func1, func3]
obs.off("more_than_one_event")
assert obs._events["more_than_one_event"] == []
def test_off():
"""test obs.off method"""
obs = Observable()
@obs.on("on_test")
def on_test():
pass
assert obs._events["on_test"] == [on_test]
assert obs.trigger("on_test")
obs.off("on_test", on_test)
assert obs._events["on_test"] == []
obs.off()
assert not obs._events
@obs.on("more_than_one_event")
def func1():
pass
@obs.on("more_than_one_event")
def func2():
pass
@obs.on("more_than_one_event")
def func3():
pass
assert obs._events["more_than_one_event"] == [func1, func2, func3]
obs.off("more_than_one_event", func2)
assert obs._events["more_than_one_event"] == [func1, func3]
obs.off("more_than_one_event")
assert obs._events["more_than_one_event"] == []
