3 #![feature(const_panic)]
4 #![feature(duration_consts_2)]
5 #![feature(div_duration)]
6 #![feature(duration_saturating_ops)]
8 use std::time::Duration;
11 const ZERO : Duration = Duration::new(0, 0);
12 assert_eq!(ZERO, Duration::from_secs(0));
14 const ONE : Duration = Duration::new(0, 1);
15 assert_eq!(ONE, Duration::from_nanos(1));
17 const MAX : Duration = Duration::new(u64::MAX, 1_000_000_000 - 1);
19 const MAX_CHECKED_ADD_ZERO : Option<Duration> = MAX.checked_add(ZERO);
20 assert_eq!(MAX_CHECKED_ADD_ZERO, Some(MAX));
22 const MAX_CHECKED_ADD_ONE : Option<Duration> = MAX.checked_add(ONE);
23 assert_eq!(MAX_CHECKED_ADD_ONE, None);
25 const ONE_CHECKED_SUB_ONE : Option<Duration> = ONE.checked_sub(ONE);
26 assert_eq!(ONE_CHECKED_SUB_ONE, Some(ZERO));
28 const ZERO_CHECKED_SUB_ONE : Option<Duration> = ZERO.checked_sub(ONE);
29 assert_eq!(ZERO_CHECKED_SUB_ONE, None);
31 const ONE_CHECKED_MUL_ONE : Option<Duration> = ONE.checked_mul(1);
32 assert_eq!(ONE_CHECKED_MUL_ONE, Some(ONE));
34 const MAX_CHECKED_MUL_TWO : Option<Duration> = MAX.checked_mul(2);
35 assert_eq!(MAX_CHECKED_MUL_TWO, None);
37 const ONE_CHECKED_DIV_ONE : Option<Duration> = ONE.checked_div(1);
38 assert_eq!(ONE_CHECKED_DIV_ONE, Some(ONE));
40 const ONE_CHECKED_DIV_ZERO : Option<Duration> = ONE.checked_div(0);
41 assert_eq!(ONE_CHECKED_DIV_ZERO, None);
43 const MAX_AS_F32 : f32 = MAX.as_secs_f32();
44 assert_eq!(MAX_AS_F32, 18446744000000000000.0_f32);
46 const MAX_AS_F64 : f64 = MAX.as_secs_f64();
47 assert_eq!(MAX_AS_F64, 18446744073709552000.0_f64);
49 const ONE_AS_F32 : f32 = ONE.div_duration_f32(ONE);
50 assert_eq!(ONE_AS_F32, 1.0_f32);
52 const ONE_AS_F64 : f64 = ONE.div_duration_f64(ONE);
53 assert_eq!(ONE_AS_F64, 1.0_f64);
55 const MAX_SATURATING_ADD_ONE : Duration = MAX.saturating_add(ONE);
56 assert_eq!(MAX_SATURATING_ADD_ONE, MAX);
58 const ZERO_SATURATING_SUB_ONE : Duration = ZERO.saturating_sub(ONE);
59 assert_eq!(ZERO_SATURATING_SUB_ONE, ZERO);
61 const MAX_SATURATING_MUL_TWO : Duration = MAX.saturating_mul(2);
62 assert_eq!(MAX_SATURATING_MUL_TWO, MAX);