def test_desc(self):
"""
Getting an enumeration item's description by value returns the
description or an empty `unicode` string if no item is represented
by the given value.
"""
values = [
EnumItem(u'foo', u'Foo', hidden=True),
EnumItem(u'bar', u'Bar')]
enum = Enum('doc', values)
self.assertThat(
[e.desc for e in enum],
Equals([enum.desc(e.value) for e in enum]))
self.assertThat(enum.desc(u'DOES_NOT_EXIST'), Equals(u''))
