def METHOD_NAME(self):
    tests = [
        (0, '0.0 seconds'),
        (30, '30.0 seconds'),
        (60, '1.0 minutes'),
        (90, '1.5 minutes'),
        (125, '2.1 minutes'),
        (3600, '1.0 hours'),
        (86400, '1.0 days'),
        (604800, '1.0 weeks'),
        (31449600, '1.0 years'),
        (314496000, '1.0 decades'),
    ]
    for i, h in tests:
        self.assertEqual(h, ui.human_seconds(i))