deno.land / std@0.166.0 / node / _tools / test / parallel / test-stream-pipe-await-drain-push-while-write.js

test-stream-pipe-await-drain-push-while-write.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
'use strict';const common = require('../common');const stream = require('stream');const assert = require('assert');
const writable = new stream.Writable({ write: common.mustCall(function(chunk, encoding, cb) { assert.strictEqual( readable._readableState.awaitDrainWriters, null, );
if (chunk.length === 32 * 1024) { // first chunk readable.push(Buffer.alloc(34 * 1024)); // above hwm // We should check if awaitDrain counter is increased in the next // tick, because awaitDrain is incremented after this method finished process.nextTick(() => { assert.strictEqual(readable._readableState.awaitDrainWriters, writable); }); }
process.nextTick(cb); }, 3)});
// A readable stream which produces two buffers.const bufs = [Buffer.alloc(32 * 1024), Buffer.alloc(33 * 1024)]; // above hwmconst readable = new stream.Readable({ read: function() { while (bufs.length > 0) { this.push(bufs.shift()); } }});
readable.pipe(writable);
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a year ago