'test dict value with none value'

def test_first_level_dict_with_none_value(self):

    yed = Yedit(content={'a': None}, separator=':')
    yed.put('a:b:c', 'test')
    self.assertTrue((yed.get('a:b:c') == 'test'))
    self.assertTrue(yed.get('a:b'), {'c': 'test'})
