1 // Copyright 2018 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 use core::time::Duration;
15 assert!(Duration::from_secs(1) != Duration::from_secs(0));
16 assert_eq!(Duration::from_secs(1) + Duration::from_secs(2),
17 Duration::from_secs(3));
18 assert_eq!(Duration::from_millis(10) + Duration::from_secs(4),
19 Duration::new(4, 10 * 1_000_000));
20 assert_eq!(Duration::from_millis(4000), Duration::new(4, 0));
25 assert_eq!(Duration::new(0, 0).as_secs(), 0);
26 assert_eq!(Duration::from_secs(1).as_secs(), 1);
27 assert_eq!(Duration::from_millis(999).as_secs(), 0);
28 assert_eq!(Duration::from_millis(1001).as_secs(), 1);
33 assert_eq!(Duration::new(0, 0).subsec_nanos(), 0);
34 assert_eq!(Duration::new(0, 5).subsec_nanos(), 5);
35 assert_eq!(Duration::new(0, 1_000_000_001).subsec_nanos(), 1);
36 assert_eq!(Duration::from_secs(1).subsec_nanos(), 0);
37 assert_eq!(Duration::from_millis(999).subsec_nanos(), 999 * 1_000_000);
38 assert_eq!(Duration::from_millis(1001).subsec_nanos(), 1 * 1_000_000);
43 assert_eq!(Duration::new(0, 0) + Duration::new(0, 1),
45 assert_eq!(Duration::new(0, 500_000_000) + Duration::new(0, 500_000_001),
51 assert_eq!(Duration::new(0, 0).checked_add(Duration::new(0, 1)),
52 Some(Duration::new(0, 1)));
53 assert_eq!(Duration::new(0, 500_000_000).checked_add(Duration::new(0, 500_000_001)),
54 Some(Duration::new(1, 1)));
55 assert_eq!(Duration::new(1, 0).checked_add(Duration::new(::core::u64::MAX, 0)), None);
60 assert_eq!(Duration::new(0, 1) - Duration::new(0, 0),
62 assert_eq!(Duration::new(0, 500_000_001) - Duration::new(0, 500_000_000),
64 assert_eq!(Duration::new(1, 0) - Duration::new(0, 1),
65 Duration::new(0, 999_999_999));
70 let zero = Duration::new(0, 0);
71 let one_nano = Duration::new(0, 1);
72 let one_sec = Duration::new(1, 0);
73 assert_eq!(one_nano.checked_sub(zero), Some(Duration::new(0, 1)));
74 assert_eq!(one_sec.checked_sub(one_nano),
75 Some(Duration::new(0, 999_999_999)));
76 assert_eq!(zero.checked_sub(one_nano), None);
77 assert_eq!(zero.checked_sub(one_sec), None);
83 let _ = Duration::new(0, 0) - Duration::new(0, 1);
89 let _ = Duration::new(0, 0) - Duration::new(1, 0);
94 assert_eq!(Duration::new(0, 1) * 2, Duration::new(0, 2));
95 assert_eq!(Duration::new(1, 1) * 3, Duration::new(3, 3));
96 assert_eq!(Duration::new(0, 500_000_001) * 4, Duration::new(2, 4));
97 assert_eq!(Duration::new(0, 500_000_001) * 4000,
98 Duration::new(2000, 4000));
103 assert_eq!(Duration::new(0, 1).checked_mul(2), Some(Duration::new(0, 2)));
104 assert_eq!(Duration::new(1, 1).checked_mul(3), Some(Duration::new(3, 3)));
105 assert_eq!(Duration::new(0, 500_000_001).checked_mul(4), Some(Duration::new(2, 4)));
106 assert_eq!(Duration::new(0, 500_000_001).checked_mul(4000),
107 Some(Duration::new(2000, 4000)));
108 assert_eq!(Duration::new(::core::u64::MAX - 1, 0).checked_mul(2), None);
113 assert_eq!(Duration::new(0, 1) / 2, Duration::new(0, 0));
114 assert_eq!(Duration::new(1, 1) / 3, Duration::new(0, 333_333_333));
115 assert_eq!(Duration::new(99, 999_999_000) / 100,
116 Duration::new(0, 999_999_990));
121 assert_eq!(Duration::new(2, 0).checked_div(2), Some(Duration::new(1, 0)));
122 assert_eq!(Duration::new(1, 0).checked_div(2), Some(Duration::new(0, 500_000_000)));
123 assert_eq!(Duration::new(2, 0).checked_div(0), None);
127 fn debug_formatting_extreme_values() {
129 format!("{:?}", Duration::new(18_446_744_073_709_551_615, 123_456_789)),
130 "18446744073709551615.123456789s"
135 fn debug_formatting_secs() {
136 assert_eq!(format!("{:?}", Duration::new(7, 000_000_000)), "7s");
137 assert_eq!(format!("{:?}", Duration::new(7, 100_000_000)), "7.1s");
138 assert_eq!(format!("{:?}", Duration::new(7, 000_010_000)), "7.00001s");
139 assert_eq!(format!("{:?}", Duration::new(7, 000_000_001)), "7.000000001s");
140 assert_eq!(format!("{:?}", Duration::new(7, 123_456_789)), "7.123456789s");
142 assert_eq!(format!("{:?}", Duration::new(88, 000_000_000)), "88s");
143 assert_eq!(format!("{:?}", Duration::new(88, 100_000_000)), "88.1s");
144 assert_eq!(format!("{:?}", Duration::new(88, 000_010_000)), "88.00001s");
145 assert_eq!(format!("{:?}", Duration::new(88, 000_000_001)), "88.000000001s");
146 assert_eq!(format!("{:?}", Duration::new(88, 123_456_789)), "88.123456789s");
148 assert_eq!(format!("{:?}", Duration::new(999, 000_000_000)), "999s");
149 assert_eq!(format!("{:?}", Duration::new(999, 100_000_000)), "999.1s");
150 assert_eq!(format!("{:?}", Duration::new(999, 000_010_000)), "999.00001s");
151 assert_eq!(format!("{:?}", Duration::new(999, 000_000_001)), "999.000000001s");
152 assert_eq!(format!("{:?}", Duration::new(999, 123_456_789)), "999.123456789s");
156 fn debug_formatting_millis() {
157 assert_eq!(format!("{:?}", Duration::new(0, 7_000_000)), "7ms");
158 assert_eq!(format!("{:?}", Duration::new(0, 7_100_000)), "7.1ms");
159 assert_eq!(format!("{:?}", Duration::new(0, 7_000_001)), "7.000001ms");
160 assert_eq!(format!("{:?}", Duration::new(0, 7_123_456)), "7.123456ms");
162 assert_eq!(format!("{:?}", Duration::new(0, 88_000_000)), "88ms");
163 assert_eq!(format!("{:?}", Duration::new(0, 88_100_000)), "88.1ms");
164 assert_eq!(format!("{:?}", Duration::new(0, 88_000_001)), "88.000001ms");
165 assert_eq!(format!("{:?}", Duration::new(0, 88_123_456)), "88.123456ms");
167 assert_eq!(format!("{:?}", Duration::new(0, 999_000_000)), "999ms");
168 assert_eq!(format!("{:?}", Duration::new(0, 999_100_000)), "999.1ms");
169 assert_eq!(format!("{:?}", Duration::new(0, 999_000_001)), "999.000001ms");
170 assert_eq!(format!("{:?}", Duration::new(0, 999_123_456)), "999.123456ms");
174 fn debug_formatting_micros() {
175 assert_eq!(format!("{:?}", Duration::new(0, 7_000)), "7µs");
176 assert_eq!(format!("{:?}", Duration::new(0, 7_100)), "7.1µs");
177 assert_eq!(format!("{:?}", Duration::new(0, 7_001)), "7.001µs");
178 assert_eq!(format!("{:?}", Duration::new(0, 7_123)), "7.123µs");
180 assert_eq!(format!("{:?}", Duration::new(0, 88_000)), "88µs");
181 assert_eq!(format!("{:?}", Duration::new(0, 88_100)), "88.1µs");
182 assert_eq!(format!("{:?}", Duration::new(0, 88_001)), "88.001µs");
183 assert_eq!(format!("{:?}", Duration::new(0, 88_123)), "88.123µs");
185 assert_eq!(format!("{:?}", Duration::new(0, 999_000)), "999µs");
186 assert_eq!(format!("{:?}", Duration::new(0, 999_100)), "999.1µs");
187 assert_eq!(format!("{:?}", Duration::new(0, 999_001)), "999.001µs");
188 assert_eq!(format!("{:?}", Duration::new(0, 999_123)), "999.123µs");
192 fn debug_formatting_nanos() {
193 assert_eq!(format!("{:?}", Duration::new(0, 0)), "0ns");
194 assert_eq!(format!("{:?}", Duration::new(0, 1)), "1ns");
195 assert_eq!(format!("{:?}", Duration::new(0, 88)), "88ns");
196 assert_eq!(format!("{:?}", Duration::new(0, 999)), "999ns");
200 fn debug_formatting_precision_zero() {
201 assert_eq!(format!("{:.0?}", Duration::new(0, 0)), "0ns");
202 assert_eq!(format!("{:.0?}", Duration::new(0, 123)), "123ns");
204 assert_eq!(format!("{:.0?}", Duration::new(0, 1_001)), "1µs");
205 assert_eq!(format!("{:.0?}", Duration::new(0, 1_499)), "1µs");
206 assert_eq!(format!("{:.0?}", Duration::new(0, 1_500)), "2µs");
207 assert_eq!(format!("{:.0?}", Duration::new(0, 1_999)), "2µs");
209 assert_eq!(format!("{:.0?}", Duration::new(0, 1_000_001)), "1ms");
210 assert_eq!(format!("{:.0?}", Duration::new(0, 1_499_999)), "1ms");
211 assert_eq!(format!("{:.0?}", Duration::new(0, 1_500_000)), "2ms");
212 assert_eq!(format!("{:.0?}", Duration::new(0, 1_999_999)), "2ms");
214 assert_eq!(format!("{:.0?}", Duration::new(1, 000_000_001)), "1s");
215 assert_eq!(format!("{:.0?}", Duration::new(1, 499_999_999)), "1s");
216 assert_eq!(format!("{:.0?}", Duration::new(1, 500_000_000)), "2s");
217 assert_eq!(format!("{:.0?}", Duration::new(1, 999_999_999)), "2s");
221 fn debug_formatting_precision_two() {
222 // This might seem inconsistent with the other units, but printing
223 // fractional digits for nano seconds would imply more precision than is
225 assert_eq!(format!("{:.2?}", Duration::new(0, 0)), "0ns");
226 assert_eq!(format!("{:.2?}", Duration::new(0, 123)), "123ns");
228 assert_eq!(format!("{:.2?}", Duration::new(0, 1_000)), "1.00µs");
229 assert_eq!(format!("{:.2?}", Duration::new(0, 7_001)), "7.00µs");
230 assert_eq!(format!("{:.2?}", Duration::new(0, 7_100)), "7.10µs");
231 assert_eq!(format!("{:.2?}", Duration::new(0, 7_109)), "7.11µs");
232 assert_eq!(format!("{:.2?}", Duration::new(0, 7_199)), "7.20µs");
233 assert_eq!(format!("{:.2?}", Duration::new(0, 1_999)), "2.00µs");
235 assert_eq!(format!("{:.2?}", Duration::new(0, 1_000_000)), "1.00ms");
236 assert_eq!(format!("{:.2?}", Duration::new(0, 3_001_000)), "3.00ms");
237 assert_eq!(format!("{:.2?}", Duration::new(0, 3_100_000)), "3.10ms");
238 assert_eq!(format!("{:.2?}", Duration::new(0, 1_999_999)), "2.00ms");
240 assert_eq!(format!("{:.2?}", Duration::new(1, 000_000_000)), "1.00s");
241 assert_eq!(format!("{:.2?}", Duration::new(4, 001_000_000)), "4.00s");
242 assert_eq!(format!("{:.2?}", Duration::new(2, 100_000_000)), "2.10s");
243 assert_eq!(format!("{:.2?}", Duration::new(2, 104_990_000)), "2.10s");
244 assert_eq!(format!("{:.2?}", Duration::new(2, 105_000_000)), "2.11s");
245 assert_eq!(format!("{:.2?}", Duration::new(8, 999_999_999)), "9.00s");