':py:obj:`get_elliptic_curve` can be used to retrieve a particular
supported curve.'

def test_a_curve(self):

    curves = get_elliptic_curves()
    if curves:
        curve = next(iter(curves))
        self.assertEqual(curve.name, get_elliptic_curve(curve.name).name)
    else:
        self.assertRaises(ValueError, get_elliptic_curve, u('prime256v1'))
