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split: handle no final newline with --line-bytes

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Fix a panic due to out-of-bounds indexing when using `split
--line-bytes` with an input that had no trailing newline.
This commit is contained in:
Jeffrey Finkelstein 2022-03-19 23:50:02 -04:00
parent 1d17400b80
commit 95f58fbf3c
2 changed files with 17 additions and 1 deletions
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16
tests/by-util/test_split.rs
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@ -618,3 +618,19 @@ fn test_line_bytes() {
assert_eq!(at.read("xac"), "cccc\ndd\n");
assert_eq!(at.read("xad"), "ee\n");
}
#[test]
fn test_line_bytes_no_final_newline() {
let (at, mut ucmd) = at_and_ucmd!();
ucmd.args(&["-C", "2"])
.pipe_in("1\n2222\n3\n4")
.succeeds()
.no_stdout()
.no_stderr();
assert_eq!(at.read("xaa"), "1\n");
assert_eq!(at.read("xab"), "22");
assert_eq!(at.read("xac"), "22");
assert_eq!(at.read("xad"), "\n");
assert_eq!(at.read("xae"), "3\n");
assert_eq!(at.read("xaf"), "4");
}