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mktemp: error on empty --suffix in some situations

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Make `mktemp` exit with an error if the `--suffix` option is the empty
string and the template argument does not end in an "X". Previously,
the program succeeded.

Before this commit,

    $ mktemp --suffix= aXXXb
    apBEb

After this commit,

    $ mktemp --suffix= aXXXb
    mktemp: with --suffix, template 'aXXXb' must end in X
This commit is contained in:
Jeffrey Finkelstein 2022-06-06 09:46:15 -04:00
parent 3a45f00fed
commit 6da070cdd3
2 changed files with 27 additions and 3 deletions
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22
tests/by-util/test_mktemp.rs
View file

@ -619,3 +619,25 @@ fn test_three_contiguous_wildcard_blocks() {
assert_matches_template!(template, filename);
assert!(at.file_exists(filename));
}
/// Test that template must end in X even if `--suffix` is the empty string.
#[test]
fn test_suffix_must_end_in_x() {
new_ucmd!()
.args(&["--suffix=", "aXXXb"])
.fails()
.stderr_is("mktemp: with --suffix, template 'aXXXb' must end in X\n");
}
#[test]
fn test_suffix_empty_template() {
new_ucmd!()
.args(&["--suffix=aXXXb", ""])
.fails()
.stderr_is("mktemp: with --suffix, template '' must end in X\n");
new_ucmd!()
.args(&["-d", "--suffix=aXXXb", ""])
.fails()
.stderr_is("mktemp: with --suffix, template '' must end in X\n");
}