108     def _test(self, l, m, r, output):  member in ClinicGroupPermuterTest
113         self._test([['start']], ['stop'], [['step']],
121         self._test([['x', 'y']], ['ch'], [['attr']],
130         self._test([['a1', 'a2', 'a3'], ['b1', 'b2']], ['c1'], [['d1', 'd2'], ['e1', 'e2', 'e3']],
141         self._test([], [], [['a'],['b'],['c']],
156     def _test(self, input, output, **kwargs):  member in ClinicLinearFormatTest
161         self._test('', '')
164         self._test('\n', '\n')
167         self._test("""
174         self._test("""
184         self._test("""
195         self._test("""
223     def _test(self, input, output):  member in ClinicBlockParserTest
234         return self._test(input, input)