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test: stricten readline keypress failure test condition #31300

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test: stricten readline keypress failure test condition #31300

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13 changes: 9 additions & 4 deletions test/parallel/test-readline-interface.js
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Original file line number Diff line number Diff line change
Expand Up @@ -561,15 +561,20 @@ function isWarned(emitter) {
{ input: fi, output: fi, terminal: true }
);
const keys = [];
const err = new Error('bad thing happened');
fi.on('keypress', function(key) {
keys.push(key);
if (key === 'X') {
throw new Error('bad thing happened');
throw err;
}
});
try {
fi.emit('data', 'fooX');
} catch { }
assert.throws(
() => fi.emit('data', 'fooX'),
(e) => {
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Instead of a validation function, can't this just be err?

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That would also work but I wanted to have a reference equality check. That would not be checked if I'd use err directly.

assert.strictEqual(e, err);
return true;
}
);
fi.emit('data', 'bar');
assert.strictEqual(keys.join(''), 'fooXbar');
rli.close();
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