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Added overwrite detection for existing symlinks

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This commit is contained in:
Anirban Halder 2024-05-07 23:59:49 +05:30 • committed by Ben Wiederhake
parent 8078fca99b
commit f7e55b1322
3 changed files with 58 additions and 0 deletions
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36
tests/by-util/test_cp.rs
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@ -2660,6 +2660,42 @@ fn test_copy_through_dangling_symlink_no_dereference() {
.no_stdout();
}
#[test]
fn test_cp_symlink_overwrite_detection() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.mkdir("good");
at.mkdir("tmp");
at.touch("README");
at.touch("good/README");
at.write("README", "file1");
at.write("good/README", "file2");
ts.ccmd("ln")
.arg("-s")
.arg("foo")
.arg("tmp/README")
.succeeds();
at.touch("tmp/foo");
let result = ts
.ucmd()
.arg("README")
.arg("good/README")
.arg("tmp")
.fails();
let stderr = result.stderr_str();
assert_eq!(
"cp: will not copy 'good/README' through just-created symlink 'tmp/README'\n",
stderr
);
let contents = at.read("tmp/foo");
assert_eq!(contents, "file1");
}
/// Test for copying a dangling symbolic link and its permissions.
#[cfg(not(target_os = "freebsd"))] // FIXME: fix this test for FreeBSD
#[test]