def test_invalid_string(self):
     with self.assertRaises(ValueError):
         time('lol')
 def test_invalid_min(self):
     with self.assertRaises(ValueError):
         time(-1)
 def test_valid_float(self):
     self.assertEqual(time(2.3), 2.3)
 def test_valid_min_string(self):
     self.assertEqual(time('0'), 0)
 def test_valid_normal(self):
     self.assertEqual(time(10), 10)
 def test_valid_min(self):
     self.assertEqual(time(0), 0)