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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
const assert = require('assert');
const Duplex = require('stream').Duplex;
const stream = new Duplex({ objectMode: true });
assert(Duplex() instanceof Duplex);
assert(stream._readableState.objectMode);
assert(stream._writableState.objectMode);
assert(stream.allowHalfOpen);
assert.strictEqual(stream.listenerCount('end'), 0);
let written;
let read;
stream._write = (obj, _, cb) => {
written = obj;
cb();
};
stream._read = () => {};
stream.on('data', (obj) => {
read = obj;
});
stream.push({ val: 1 });
stream.end({ val: 2 });
process.on('exit', () => {
assert.strictEqual(read.val, 1);
assert.strictEqual(written.val, 2);
});
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