File: test_tuple_editor.py

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#------------------------------------------------------------------------------
#
#  Copyright (c) 2014, 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
#
#  Author: Ioannis Tziakos
#  Date:   Aug 2014
#
#------------------------------------------------------------------------------
"""
Test cases for the TupleEditor object.
"""

import unittest

from traits.api import Float, HasStrictTraits, Str, Tuple
from traits.testing.api import UnittestTools

from traitsui.api import Item, TupleEditor, View


class DummyModel(HasStrictTraits):
    """ Dummy model with a Tuple trait.
    """

    data = Tuple(Float, Float, Str)

    traits_view = View(Item(name='data', editor=TupleEditor()))


class TestTupleEditor(UnittestTools, unittest.TestCase):

    def test_value_update(self):
        # Regression test for #179
        model = DummyModel()
        try:
            ui = model.edit_traits()
            with self.assertTraitChanges(model, 'data', count=1):
                model.data = (3, 4.6, 'nono')
        finally:
            if ui is not None:
                ui.dispose()


if __name__ == '__main__':
    unittest.run()