mirror of https://gitee.com/openkylin/nodejs.git
71 lines
2.1 KiB
JavaScript
71 lines
2.1 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 fixtures = require('../common/fixtures');
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const assert = require('assert');
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const fs = require('fs');
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const FSReadable = fs.ReadStream;
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const path = require('path');
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const file = path.resolve(fixtures.path('x1024.txt'));
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const size = fs.statSync(file).size;
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const expectLengths = [1024];
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const Stream = require('stream');
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class TestWriter extends Stream {
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constructor() {
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super();
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this.buffer = [];
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this.length = 0;
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}
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write(c) {
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this.buffer.push(c.toString());
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this.length += c.length;
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return true;
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}
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end(c) {
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if (c) this.buffer.push(c.toString());
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this.emit('results', this.buffer);
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}
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}
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const r = new FSReadable(file);
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const w = new TestWriter();
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w.on('results', function(res) {
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console.error(res, w.length);
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assert.strictEqual(w.length, size);
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assert.deepStrictEqual(res.map(function(c) {
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return c.length;
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}), expectLengths);
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console.log('ok');
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});
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r.pipe(w);
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