Current File : /home/vacivi36/vittasync.vacivitta.com.br/vittasync/node/test/parallel/test-stream-wrap-drain.js
// Flags: --expose-internals
'use strict';
const common = require('../common');
const assert = require('assert');
const { StreamWrap } = require('internal/js_stream_socket');
const { Duplex } = require('stream');
const { internalBinding } = require('internal/test/binding');
const { ShutdownWrap } = internalBinding('stream_wrap');
// This test makes sure that when a wrapped stream is waiting for
// a "drain" event to `doShutdown`, the instance will work correctly when a
// "drain" event emitted.
{
let resolve = null;
class TestDuplex extends Duplex {
_write(chunk, encoding, callback) {
// We will resolve the write later.
resolve = () => {
callback();
};
}
_read() {}
}
const testDuplex = new TestDuplex();
const socket = new StreamWrap(testDuplex);
socket.write(
// Make the buffer long enough so that the `Writable` will emit "drain".
Buffer.allocUnsafe(socket.writableHighWaterMark * 2),
common.mustCall()
);
// Make sure that the 'drain' events will be emitted.
testDuplex.on('drain', common.mustCall(() => {
console.log('testDuplex drain');
}));
assert.strictEqual(typeof resolve, 'function');
const req = new ShutdownWrap();
req.oncomplete = common.mustCall();
req.handle = socket._handle;
// Should not throw.
socket._handle.shutdown(req);
resolve();
}
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