def test_repeat_parameters(self):
        url = '/hello/?foo=bar'
        params = {'foo': 'bar'}
        retval = tags.add_parameters(url, params)
        self.assertEqual(retval, url + '&foo=bar')
Tag should append param even if another value exists for it.
dataset/ETHPy150Open caktus/django-timepiece/timepiece/tests/test_templatetags.py/AddParametersTest.test_repeat_parameters