def METHOD_NAME(self):
    # tests dynamic enlargement factor runs
    sampler = pints.NestedController(self.log_likelihood,
                                     self.log_prior)
    sampler._sampler.set_dynamic_enlargement_factor(1)
    sampler.set_log_to_screen(False)
    ef1 = sampler._sampler.enlargement_factor()
    sampler.run()
    ef2 = sampler._sampler.enlargement_factor()
    self.assertTrue(ef2 < ef1)