def assertAtomDoesNotChange(
self, obj, atom, callableObj=None, *args, **kwargs):
"""Assert an object atom does not change.
Assert that the class atom does not change during execution of the
provided function.
"""
msg = 'A change event was fired for: {0}'.format(atom)
context = _AssertAtomChangesContext(obj, atom, None, self)
if callableObj is None:
return reverse_assertion(context, msg)
with reverse_assertion(context, msg):
callableObj(*args, **kwargs)
def test_event_loop_until_trait_change(self):
with self.assertRaises(AssertionError):
with self.event_loop_until_traits_change(self.my_class,
'number',
timeout=1.0):
pass
with reverse_assertion(self.assertRaises(AssertionError),
'Assertion should not be raised'):
with self.event_loop_until_traits_change(self.my_class, 'number'):
deferred_call(self._set_trait, 5.0)
def test_event_loop_until_trait_change(self):
with self.assertRaises(AssertionError):
with self.event_loop_until_traits_change(
self.my_class, 'number', timeout=1.0):
pass
with reverse_assertion(
self.assertRaises(AssertionError),
'Assertion should not be raised'):
with self.event_loop_until_traits_change(
self.my_class, 'number'):
deferred_call(self._set_trait, 5.0)
