deno.land / std@0.166.0 / node / _tools / test / parallel / test-stream-writable-finished.js
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// 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 { Writable } = require('stream');const assert = require('assert');
// basic{ // Find it on Writable.prototype assert(Object.hasOwn(Writable.prototype, 'writableFinished'));}
// event{ const writable = new Writable();
writable._write = (chunk, encoding, cb) => { // The state finished should start in false. assert.strictEqual(writable.writableFinished, false); cb(); };
writable.on('finish', common.mustCall(() => { assert.strictEqual(writable.writableFinished, true); }));
writable.end('testing finished state', common.mustCall(() => { assert.strictEqual(writable.writableFinished, true); }));}
{ // Emit finish asynchronously.
const w = new Writable({ write(chunk, encoding, cb) { cb(); } });
w.end(); w.on('finish', common.mustCall());}
{ // Emit prefinish synchronously.
const w = new Writable({ write(chunk, encoding, cb) { cb(); } });
let sync = true; w.on('prefinish', common.mustCall(() => { assert.strictEqual(sync, true); })); w.end(); sync = false;}
{ // Emit prefinish synchronously w/ final.
const w = new Writable({ write(chunk, encoding, cb) { cb(); }, final(cb) { cb(); } });
let sync = true; w.on('prefinish', common.mustCall(() => { assert.strictEqual(sync, true); })); w.end(); sync = false;}
{ // Call _final synchronously.
let sync = true; const w = new Writable({ write(chunk, encoding, cb) { cb(); }, final: common.mustCall((cb) => { assert.strictEqual(sync, true); cb(); }) });
w.end(); sync = false;}
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