nodejs/test/parallel/test-stream2-compatibility.js

72 lines
2.0 KiB
JavaScript

// 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 R = require('_stream_readable');
const W = require('_stream_writable');
const assert = require('assert');
let ondataCalled = 0;
class TestReader extends R {
constructor() {
super();
this._buffer = Buffer.alloc(100, 'x');
this.on('data', () => {
ondataCalled++;
});
}
_read(n) {
this.push(this._buffer);
this._buffer = Buffer.alloc(0);
}
}
const reader = new TestReader();
setImmediate(function() {
assert.strictEqual(ondataCalled, 1);
console.log('ok');
reader.push(null);
});
class TestWriter extends W {
constructor() {
super();
this.write('foo');
this.end();
}
_write(chunk, enc, cb) {
cb();
}
}
const writer = new TestWriter();
process.on('exit', function() {
assert.strictEqual(reader.readable, false);
assert.strictEqual(writer.writable, false);
console.log('ok');
});