'Test adding an OrderedDict item using "_end".'

def testAdd_end(self):

    self.odict.add(u'sixth', u'.', u'_end')
    self.assertEqual(list(self.odict.items()), [(u'first', u'This'), (u'third', u'a'), (u'fourth', u'self'), (u'fifth', u'test'), (u'sixth', u'.')])
