mirror of https://gitee.com/openkylin/nodejs.git
74 lines
2.3 KiB
JavaScript
74 lines
2.3 KiB
JavaScript
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// 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 assert = require('assert');
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const stream = require('stream');
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const chunk = Buffer.from('hallo');
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class TestWriter extends stream.Writable {
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_write(buffer, encoding, callback) {
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callback(null);
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}
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}
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const dest = new TestWriter();
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// Set this high so that we'd trigger a nextTick warning
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// and/or RangeError if we do maybeReadMore wrong.
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class TestReader extends stream.Readable {
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constructor() {
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super({
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highWaterMark: 0x10000
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});
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}
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_read(size) {
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this.push(chunk);
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}
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}
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const src = new TestReader();
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for (let i = 0; i < 10; i++) {
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src.pipe(dest);
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src.unpipe(dest);
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}
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assert.strictEqual(src.listeners('end').length, 0);
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assert.strictEqual(src.listeners('readable').length, 0);
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assert.strictEqual(dest.listeners('unpipe').length, 0);
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assert.strictEqual(dest.listeners('drain').length, 0);
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assert.strictEqual(dest.listeners('error').length, 0);
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assert.strictEqual(dest.listeners('close').length, 0);
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assert.strictEqual(dest.listeners('finish').length, 0);
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console.error(src._readableState);
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process.on('exit', function() {
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src.readableBuffer.length = 0;
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console.error(src._readableState);
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assert(src.readableLength >= src.readableHighWaterMark);
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console.log('ok');
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});
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