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test(freeze): cheap link-chain budget test; name the path in the budget reason (#3623)

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Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>
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garrytanandcapy-ai[bot] committed 2026-10-31 20:27:16 +00:00
1 parent 1d90c1b0ef
commit ea56924522
2 files changed
+8 -9
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freeze/bin/check-freeze.sh
+1 -1
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@@ -319,7 +319,7 @@ _resolve_path() {
printf '%s' "$GSTACK_HOOK_PATH"
}
_FREEZE_WHY="a symlink loop, a chain over 40 links, link targets over 8192 characters in all, an unreadable link, or a Windows name that cannot be placed"
_FREEZE_WHY="a symlink loop, a chain over 40 links, a path and link targets over 8192 characters in all, an unreadable link, or a Windows name that cannot be placed"
FREEZE_DIR_RAW="$FREEZE_DIR"
FREEZE_DIR=$(_resolve_path "$FREEZE_DIR_RAW" physical "$FREEZE_DIR_WIN") || _freeze_unresolved "the freeze boundary $FREEZE_DIR_RAW" "$_FREEZE_WHY"
# Hosts disagree on '<link>/..': the OS means the target's parent, a lexical
test/hook-scripts.test.ts
+7 -8
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@@ -1561,15 +1561,14 @@ describe('check-freeze.sh', () => {
// of padded links must deny fast instead of running for minutes.
test.skipIf(process.platform === 'win32')('a symlink chain whose targets add up past 8192 characters denies quickly', () => {
withTree(({ base, home, src, outside }) => {
let next = outside;
for (let i = 40; i >= 1; i--) {
const link = path.join(src, `S${i}`);
fs.symlinkSync('.' + '/'.repeat(3990) + path.relative(src, next), link);
next = link;
}
// Each target pads with 'name/..' pairs (few components, so the walk
// itself stays cheap) to about 3,800 characters; three hops pass 8192.
const pad = ('n'.repeat(250) + '/../').repeat(15);
fs.symlinkSync(pad + path.relative(src, outside), path.join(src, 'p3'));
fs.symlinkSync(pad + 'p3', path.join(src, 'p2'));
fs.symlinkSync(pad + 'p2', path.join(src, 'p1'));
const started = Date.now();
const decision = decide(src, src + '/S1/' + '/'.repeat(3990) + 'x.ts', home, base);
expect(decision).toBe('deny');
expect(decide(src, src + '/p1/x.ts', home, base)).toBe('deny');
expect(Date.now() - started).toBeLessThan(4000);
});
});