mirror of https://gitee.com/openkylin/nodejs.git
53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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require('../common');
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const Readable = require('stream').Readable;
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const assert = require('assert');
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const s = new Readable({
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highWaterMark: 20,
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encoding: 'ascii'
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});
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const list = ['1', '2', '3', '4', '5', '6'];
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s._read = function(n) {
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const one = list.shift();
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if (!one) {
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s.push(null);
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} else {
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const two = list.shift();
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s.push(one);
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s.push(two);
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}
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};
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s.read(0);
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// ACTUALLY [1, 3, 5, 6, 4, 2]
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process.on('exit', function() {
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assert.deepStrictEqual(s.readableBuffer.join(','), '1,2,3,4,5,6');
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console.log('ok');
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});
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