coreutils/tests/by-util/test_sleep.rs
Jeffrey Finkelstein ce2a026ff8 sleep: use Duration::saturating_add to sum times
Use `Duration::saturating_add()` to avoid a panic due to overflow when
adding the durations provided as command-line arguments.
2022-03-18 23:15:02 -04:00

143 lines
3.4 KiB
Rust

// spell-checker:ignore dont
use crate::common::util::*;
use std::time::{Duration, Instant};
#[test]
fn test_sleep_no_suffix() {
let millis_100 = Duration::from_millis(100);
let before_test = Instant::now();
new_ucmd!().args(&["0.1"]).succeeds().stdout_only("");
let duration = before_test.elapsed();
assert!(duration >= millis_100);
}
#[test]
fn test_sleep_s_suffix() {
let millis_100 = Duration::from_millis(100);
let before_test = Instant::now();
new_ucmd!().args(&["0.1s"]).succeeds().stdout_only("");
let duration = before_test.elapsed();
assert!(duration >= millis_100);
}
#[test]
fn test_sleep_m_suffix() {
let millis_600 = Duration::from_millis(600);
let before_test = Instant::now();
new_ucmd!().args(&["0.01m"]).succeeds().stdout_only("");
let duration = before_test.elapsed();
assert!(duration >= millis_600);
}
#[test]
fn test_sleep_h_suffix() {
let millis_360 = Duration::from_millis(360);
let before_test = Instant::now();
new_ucmd!().args(&["0.0001h"]).succeeds().stdout_only("");
let duration = before_test.elapsed();
assert!(duration >= millis_360);
}
#[test]
fn test_sleep_negative_duration() {
new_ucmd!().args(&["-1"]).fails();
new_ucmd!().args(&["-1s"]).fails();
new_ucmd!().args(&["-1m"]).fails();
new_ucmd!().args(&["-1h"]).fails();
new_ucmd!().args(&["-1d"]).fails();
}
#[test]
fn test_sleep_zero_duration() {
new_ucmd!().args(&["0"]).succeeds().stdout_only("");
new_ucmd!().args(&["0s"]).succeeds().stdout_only("");
new_ucmd!().args(&["0m"]).succeeds().stdout_only("");
new_ucmd!().args(&["0h"]).succeeds().stdout_only("");
new_ucmd!().args(&["0d"]).succeeds().stdout_only("");
}
#[test]
fn test_sleep_no_argument() {
new_ucmd!().fails();
}
#[test]
fn test_sleep_sum_duration_same_suffix() {
let millis_200 = Duration::from_millis(100 + 100);
let before_test = Instant::now();
new_ucmd!()
.args(&["0.1s", "0.1s"])
.succeeds()
.stdout_only("");
let duration = before_test.elapsed();
assert!(duration >= millis_200);
}
#[test]
fn test_sleep_sum_duration_different_suffix() {
let millis_700 = Duration::from_millis(100 + 600);
let before_test = Instant::now();
new_ucmd!()
.args(&["0.1s", "0.01m"])
.succeeds()
.stdout_only("");
let duration = before_test.elapsed();
assert!(duration >= millis_700);
}
#[test]
fn test_sleep_sum_duration_many() {
let millis_900 = Duration::from_millis(100 + 100 + 300 + 400);
let before_test = Instant::now();
new_ucmd!()
.args(&["0.1s", "0.1s", "0.3s", "0.4s"])
.succeeds()
.stdout_only("");
let duration = before_test.elapsed();
assert!(duration >= millis_900);
}
#[test]
fn test_sleep_wrong_time() {
new_ucmd!().args(&["0.1s", "abc"]).fails();
}
// TODO These tests would obviously block for a very long time. We
// only want to verify that there is no error here, so we could just
// figure out a way to terminate the child process after a short
// period of time.
// #[test]
#[allow(dead_code)]
fn test_dont_overflow() {
new_ucmd!()
.arg("9223372036854775808d")
.succeeds()
.no_stderr()
.no_stdout();
}
// #[test]
#[allow(dead_code)]
fn test_sum_overflow() {
new_ucmd!()
.args(&["100000000000000d", "100000000000000d", "100000000000000d"])
.succeeds()
.no_stderr()
.no_stdout();
}