deno.land / std@0.166.0 / node / _tools / test / parallel / test-stream-transform-objectmode-falsey-value.js

test-stream-transform-objectmode-falsey-value.js
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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// 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';const common = require('../common');const assert = require('assert');
const stream = require('stream');const PassThrough = stream.PassThrough;
const src = new PassThrough({ objectMode: true });const tx = new PassThrough({ objectMode: true });const dest = new PassThrough({ objectMode: true });
const expect = [ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ];const results = [];
dest.on('data', common.mustCall(function(x) { results.push(x);}, expect.length));
src.pipe(tx).pipe(dest);
let i = -1;const int = setInterval(common.mustCall(function() { if (results.length === expect.length) { src.end(); clearInterval(int); assert.deepStrictEqual(results, expect); } else { src.write(i++); }}, expect.length + 1), 1);
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a year ago