def METHOD_NAME(self):
    # Run small simulation
    model = DegradationModel(20)
    times = [0, 1, 2, 100, 1000, 10000]
    parameters = [0.1]
    values = model.simulate(parameters, times)
    self.assertEqual(len(values), len(times))
    self.assertEqual(values[0], 20)
    self.assertEqual(values[-1], 0)
    self.assertTrue(np.all(values[1:] <= values[:-1]))