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#------------------------------------------------------------------------------
#
# Copyright (c) 2013, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
#------------------------------------------------------------------------------
""" General regression tests for various fixed bugs.
"""
import unittest
from traits.api import DelegatesTo, Event, HasTraits, Instance, Undefined
from traitsui.api import Editor, TextEditor
class Parent(HasTraits):
button = Event()
class Child(HasTraits):
parent = Instance(Parent)
button = DelegatesTo('parent')
class TestRegression(unittest.TestCase):
def test_editor_on_delegates_to_event(self):
""" Make sure that DelegatesTo on Events passes Editor creation.
"""
child = Child(parent=Parent())
editor = Editor(None, factory=TextEditor(), object=child, name='button')
self.assertIs(editor.old_value, Undefined)
def test_attribute_error(self):
""" Make sure genuine AttributeErrors raise on Editor creation.
"""
self.assertRaises(AttributeError, Editor,
None, factory=TextEditor(), object=Parent(),
name='not_a_trait')
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