/usr/lib/python2.7/dist-packages/traits/tests/test_new_notifiers.py is in python-traits 4.6.0-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | """ Tests for dynamic notifiers with `dispatch='new'`.
Dynamic notifiers created with the `dispatch='new'` option dispatch event
notifications on a new thread. The class handling the dispatch,
`NewTraitChangeNotifyWrapper`, is a subclass of `TraitChangeNotifyWrapper`.
Most of the functionality of the class is thus already covered by the
`TestDynamicNotifiers` test case, and we only need to test that the
notification really occurs on a separate thread.
"""
import thread
import time
from traits.api import Float, HasTraits
from traits.testing.unittest_tools import unittest
class Foo(HasTraits):
foo = Float
class TestNewNotifiers(unittest.TestCase):
""" Tests for dynamic notifiers with `dispatch='new'`. """
def test_notification_on_separate_thread(self):
notifications = []
def on_foo_notifications(obj, name, old, new):
thread_id = thread.get_ident()
event = (thread_id, obj, name, old, new)
notifications.append(event)
obj = Foo()
obj.on_trait_change(on_foo_notifications, 'foo', dispatch='new')
obj.foo = 3
# Wait for a while to make sure the notification has finished.
time.sleep(0.1)
self.assertEqual(len(notifications), 1)
self.assertEqual(notifications[0][1:], (obj, 'foo', 0, 3))
this_thread_id = thread.get_ident()
self.assertNotEqual(this_thread_id, notifications[0][0])
if __name__ == '__main__':
unittest.main()
|