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tests: Move seq/yes run function to Ucommand::run_stdout_starts_with

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Tests for both `seq` and `yes` run a command that never terminates,
and check the beggining of their output in stdout, move the copied
parts of the wrapper function to common/util.

We still need to use slightly different logic to parse exit value
as `seq` returns success if stdout gets closed, while `yes` fails.
This commit is contained in:
Nicolas Boichat 2025-03-22 14:18:38 +01:00 • committed by Sylvestre Ledru
parent b540e18dec
commit 59cd6e5e41
3 changed files with 40 additions and 33 deletions
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48
tests/by-util/test_seq.rs
View file

@ -4,7 +4,6 @@
// file that was distributed with this source code.
// spell-checker:ignore lmnop xlmnop
use crate::common::util::TestScenario;
use std::process::Stdio;
#[test]
fn test_invalid_arg() {
@ -566,51 +565,52 @@ fn test_width_floats() {
.stdout_only("09.0\n10.0\n");
}
// TODO This is duplicated from `test_yes.rs`; refactor them.
/// Run `seq`, capture some of the output, close the pipe, and verify it.
fn run(args: &[&str], expected: &[u8]) {
let mut cmd = new_ucmd!();
let mut child = cmd.args(args).set_stdout(Stdio::piped()).run_no_wait();
let buf = child.stdout_exact_bytes(expected.len());
child.close_stdout();
child.wait().unwrap().success();
assert_eq!(buf.as_slice(), expected);
}
#[test]
fn test_neg_inf() {
run(&["--", "-inf", "0"], b"-inf\n-inf\n-inf\n");
new_ucmd!()
.args(&["--", "-inf", "0"])
.run_stdout_starts_with(b"-inf\n-inf\n-inf\n")
.success();
}
#[test]
fn test_neg_infinity() {
run(&["--", "-infinity", "0"], b"-inf\n-inf\n-inf\n");
new_ucmd!()
.args(&["--", "-infinity", "0"])
.run_stdout_starts_with(b"-inf\n-inf\n-inf\n")
.success();
}
#[test]
fn test_inf() {
run(&["inf"], b"1\n2\n3\n");
new_ucmd!()
.args(&["inf"])
.run_stdout_starts_with(b"1\n2\n3\n")
.success();
}
#[test]
fn test_infinity() {
run(&["infinity"], b"1\n2\n3\n");
new_ucmd!()
.args(&["infinity"])
.run_stdout_starts_with(b"1\n2\n3\n")
.success();
}
#[test]
fn test_inf_width() {
run(
&["-w", "1.000", "inf", "inf"],
b"1.000\n inf\n inf\n inf\n",
);
new_ucmd!()
.args(&["-w", "1.000", "inf", "inf"])
.run_stdout_starts_with(b"1.000\n inf\n inf\n inf\n")
.success();
}
#[test]
fn test_neg_inf_width() {
run(
&["-w", "1.000", "-inf", "-inf"],
b"1.000\n -inf\n -inf\n -inf\n",
);
new_ucmd!()
.args(&["-w", "1.000", "-inf", "-inf"])
.run_stdout_starts_with(b"1.000\n -inf\n -inf\n -inf\n")
.success();
}
#[test]