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'use strict';
const common = require('../common');
// Tests for the regression in _stream_writable discussed in
// https://github.com/nodejs/node/pull/31756
// Specifically, when a write callback is invoked synchronously
// with an error, and autoDestroy is not being used, the error
// should still be emitted on nextTick.
const { Writable } = require('stream');
class MyStream extends Writable {
#cb = undefined;
constructor() {
super({ autoDestroy: false });
}
_write(_, __, cb) {
this.#cb = cb;
}
close() {
// Synchronously invoke the callback with an error.
this.#cb(new Error('foo'));
}
}
const stream = new MyStream();
const mustError = common.mustCall(2);
stream.write('test', () => {});
// Both error callbacks should be invoked.
stream.on('error', mustError);
stream.close();
// Without the fix in #31756, the error handler
// added after the call to close will not be invoked.
stream.on('error', mustError);
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