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Merge pull request #7484 from karlmcdowall/head_bug_bug_bug

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head: fix bug with non-terminated files.
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Dorian Péron 2025-06-14 21:22:24 +02:00 • committed by GitHub
commit 5936408922
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2 changed files with 88 additions and 13 deletions
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37
tests/by-util/test_head.rs
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@ -149,6 +149,15 @@ fn test_zero_terminated_syntax_2() {
.stdout_is("x\0y");
}
#[test]
fn test_non_terminated_input() {
new_ucmd!()
.args(&["-n", "-1"])
.pipe_in("x\ny")
.succeeds()
.stdout_is("x\n");
}
#[test]
fn test_zero_terminated_negative_lines() {
new_ucmd!()
@ -442,12 +451,19 @@ fn test_all_but_last_lines_large_file() {
let scene = TestScenario::new(util_name!());
let fixtures = &scene.fixtures;
let seq_20000_file_name = "seq_20000";
let seq_20000_truncated_file_name = "seq_20000_truncated";
let seq_1000_file_name = "seq_1000";
scene
.cmd("seq")
.arg("20000")
.set_stdout(fixtures.make_file(seq_20000_file_name))
.succeeds();
// Create a file the same as seq_20000 except for the final terminating endline.
scene
.ucmd()
.args(&["-c", "-1", seq_20000_file_name])
.set_stdout(fixtures.make_file(seq_20000_truncated_file_name))
.succeeds();
scene
.cmd("seq")
.arg("1000")
@ -459,7 +475,7 @@ fn test_all_but_last_lines_large_file() {
.ucmd()
.args(&["-n", "-19000", seq_20000_file_name])
.succeeds()
.stdout_only_fixture("seq_1000");
.stdout_only_fixture(seq_1000_file_name);
scene
.ucmd()
@ -472,6 +488,25 @@ fn test_all_but_last_lines_large_file() {
.args(&["-n", "-20001", seq_20000_file_name])
.succeeds()
.stdout_only_fixture("emptyfile.txt");
// Confirm correct behavior when the input file doesn't end with a newline.
scene
.ucmd()
.args(&["-n", "-19000", seq_20000_truncated_file_name])
.succeeds()
.stdout_only_fixture(seq_1000_file_name);
scene
.ucmd()
.args(&["-n", "-20000", seq_20000_truncated_file_name])
.succeeds()
.stdout_only_fixture("emptyfile.txt");
scene
.ucmd()
.args(&["-n", "-20001", seq_20000_truncated_file_name])
.succeeds()
.stdout_only_fixture("emptyfile.txt");
}
#[cfg(all(