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test: fix failure in test/sequential/test-heapdump.js #41772

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merged 2 commits into from
Mar 14, 2022
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test: fix failure in test/sequential/test-heapdump.js #41772

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c6e4596
test: fix failure in test/sequential/test-heapdump.js
RaisinTen Jan 30, 2022
39db817
fixup! test: fix failure in test/sequential/test-heapdump.js
RaisinTen Jan 31, 2022
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10 changes: 6 additions & 4 deletions test/sequential/test-heapdump.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,13 +25,15 @@ process.chdir(tmpdir.path);
}

{
const readonlyFile = 'ro';
fs.writeFileSync(readonlyFile, Buffer.alloc(0), { mode: 0o444 });
const directory = 'directory';
fs.mkdirSync(directory);
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I don't think this change will keep the test content as same as before

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@mawaregetsuka Yes but the intention is still the same. If you go through the PR description where this was introduced - #41373, it mentions:

this PR makes v8.writeHeapSnapshot throw if the file could not be written

So the current test still attempts to recreate a scenario where the function won't be able to write to the file, so we expect it to throw.

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Thank you, now I understand. That's a clever solution

assert.throws(() => {
writeHeapSnapshot(readonlyFile);
writeHeapSnapshot(directory);
}, (e) => {
assert.ok(e, 'writeHeapSnapshot should error');
assert.strictEqual(e.code, 'EACCES');
// TODO(RaisinTen): This should throw EISDIR on Windows too.
assert.strictEqual(e.code,
process.platform === 'win32' ? 'EACCES' : 'EISDIR');
assert.strictEqual(e.syscall, 'open');
return true;
});
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