/usr/lib/python2.7/dist-packages/traits/tests/test_property_delete.py is in python-traits 4.5.0-1ubuntu2.
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Unit tests to ensure that we can call reset_traits/delete on a
property trait (regression tests for Github issue #67).
"""
from traits import _py2to3
from traits.api import Any, HasTraits, Int, Property, TraitError
from traits.testing.unittest_tools import unittest
class E(HasTraits):
a = Property(Any)
b = Property(Int)
class TestPropertyDelete(unittest.TestCase):
def test_property_delete(self):
e = E()
with self.assertRaises(TraitError):
del e.a
with self.assertRaises(TraitError):
del e.b
def test_property_reset_traits(self):
e = E()
unresetable = e.reset_traits()
_py2to3.assertCountEqual(self, unresetable, ['a', 'b'])
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