def METHOD_NAME(self):
    self.test_format_perce()
    v, u = self.Q_(0.20, 's ** 2'), self.Q_(0.01, 's ** 2')
    m = self.ureg.Measurement(v, u)
    self.assertEqual('{0:.1u%}'.format(m), '(20 +/- 1)% second ** 2')
    self.assertEqual('{0:.1u%P}'.format(m), '(20 ± 1)% second²')
    self.assertEqual('{0:.1u%L}'.format(m), r'\left(20 \pm 1\right) \%\ \mathrm{second}^{2}')
    self.assertEqual('{0:.1u%H}'.format(m), '(20 &plusmn; 1)% second<sup>2</sup>')
    self.assertEqual('{0:.1u%C}'.format(m), '(20+/-1)% second**2')