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tail: implement sub-second sleep interval e.g. -s.1

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Jan Scheer 2021-09-16 17:14:23 +02:00
parent b1317c589e
commit 1f24b1f59c
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2 changed files with 19 additions and 9 deletions
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10
tests/by-util/test_tail.rs
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@ -326,6 +326,16 @@ fn test_negative_indexing() {
#[test]
fn test_sleep_interval() {
new_ucmd!().arg("-s").arg("10").arg(FOOBAR_TXT).succeeds();
new_ucmd!().arg("-s").arg(".1").arg(FOOBAR_TXT).succeeds();
new_ucmd!().arg("-s.1").arg(FOOBAR_TXT).succeeds();
new_ucmd!().arg("-s").arg("-1").arg(FOOBAR_TXT).fails();
new_ucmd!()
.arg("-s")
.arg("1..1")
.arg(FOOBAR_TXT)
.fails()
.stderr_contains("invalid number of seconds: '1..1'")
.code_is(1);
}
/// Test for reading all but the first NUM bytes: `tail -c +3`.