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Display milliseconds for low elapsed times. #598

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Display milliseconds for low elapsed times. #598

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cd53c35
Display milliseconds for low `elapsed` times.
lgarron Oct 6, 2023
d79d649
Update tests.
lgarron Oct 7, 2023
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30 changes: 23 additions & 7 deletions src/format.rs
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Expand Up @@ -3,6 +3,7 @@ use std::time::Duration;

use number_prefix::NumberPrefix;

const MILLISECOND: Duration = Duration::from_millis(1);
const SECOND: Duration = Duration::from_secs(1);
const MINUTE: Duration = Duration::from_secs(60);
const HOUR: Duration = Duration::from_secs(60 * 60);
Expand Down Expand Up @@ -104,6 +105,7 @@ const UNITS: &[(Duration, &str, &str)] = &[
(HOUR, "hour", "h"),
(MINUTE, "minute", "m"),
(SECOND, "second", "s"),
(MILLISECOND, "millisecond", "ms"),
];

impl fmt::Display for HumanBytes {
Expand Down Expand Up @@ -192,25 +194,39 @@ mod tests {
#[test]
fn human_duration_less_than_one_second() {
assert_eq!(
"0 seconds",
"0 milliseconds",
format!("{}", HumanDuration(Duration::from_secs(0)))
);
assert_eq!("0 seconds", format!("{}", HumanDuration(MILLI)));
assert_eq!("0 seconds", format!("{}", HumanDuration(499 * MILLI)));
assert_eq!("1 second", format!("{}", HumanDuration(500 * MILLI)));
assert_eq!("1 second", format!("{}", HumanDuration(999 * MILLI)));
assert_eq!("1 millisecond", format!("{}", HumanDuration(MILLI)));
assert_eq!("2 milliseconds", format!("{}", HumanDuration(2 * MILLI)));
assert_eq!(
"499 milliseconds",
format!("{}", HumanDuration(499 * MILLI))
);
assert_eq!(
"500 milliseconds",
format!("{}", HumanDuration(500 * MILLI))
);
assert_eq!(
"999 milliseconds",
format!("{}", HumanDuration(999 * MILLI))
);
}

#[test]
fn human_duration_less_than_two_seconds() {
assert_eq!("1 second", format!("{}", HumanDuration(1499 * MILLI)));
assert_eq!(
"1499 milliseconds",
format!("{}", HumanDuration(1499 * MILLI))
);
assert_eq!("2 seconds", format!("{}", HumanDuration(1500 * MILLI)));
assert_eq!("2 seconds", format!("{}", HumanDuration(1999 * MILLI)));
}

#[test]
fn human_duration_one_unit() {
assert_eq!("1 second", format!("{}", HumanDuration(SECOND)));
assert_eq!("1 millisecond", format!("{}", HumanDuration(MILLI)));
assert_eq!("1000 milliseconds", format!("{}", HumanDuration(SECOND)));
assert_eq!("60 seconds", format!("{}", HumanDuration(MINUTE)));
assert_eq!("60 minutes", format!("{}", HumanDuration(HOUR)));
assert_eq!("24 hours", format!("{}", HumanDuration(DAY)));
Expand Down