11cb0ef41Sopenharmony_ci'use strict'; 21cb0ef41Sopenharmony_ciconst common = require('../common'); 31cb0ef41Sopenharmony_ciconst assert = require('assert'); 41cb0ef41Sopenharmony_ciconst { Writable, Readable } = require('stream'); 51cb0ef41Sopenharmony_ciclass NullWriteable extends Writable { 61cb0ef41Sopenharmony_ci _write(chunk, encoding, callback) { 71cb0ef41Sopenharmony_ci return callback(); 81cb0ef41Sopenharmony_ci } 91cb0ef41Sopenharmony_ci} 101cb0ef41Sopenharmony_ciclass QuickEndReadable extends Readable { 111cb0ef41Sopenharmony_ci _read() { 121cb0ef41Sopenharmony_ci this.push(null); 131cb0ef41Sopenharmony_ci } 141cb0ef41Sopenharmony_ci} 151cb0ef41Sopenharmony_ciclass NeverEndReadable extends Readable { 161cb0ef41Sopenharmony_ci _read() {} 171cb0ef41Sopenharmony_ci} 181cb0ef41Sopenharmony_ci 191cb0ef41Sopenharmony_ci{ 201cb0ef41Sopenharmony_ci const dest = new NullWriteable(); 211cb0ef41Sopenharmony_ci const src = new QuickEndReadable(); 221cb0ef41Sopenharmony_ci dest.on('pipe', common.mustCall()); 231cb0ef41Sopenharmony_ci dest.on('unpipe', common.mustCall()); 241cb0ef41Sopenharmony_ci src.pipe(dest); 251cb0ef41Sopenharmony_ci setImmediate(() => { 261cb0ef41Sopenharmony_ci assert.strictEqual(src._readableState.pipes.length, 0); 271cb0ef41Sopenharmony_ci }); 281cb0ef41Sopenharmony_ci} 291cb0ef41Sopenharmony_ci 301cb0ef41Sopenharmony_ci{ 311cb0ef41Sopenharmony_ci const dest = new NullWriteable(); 321cb0ef41Sopenharmony_ci const src = new NeverEndReadable(); 331cb0ef41Sopenharmony_ci dest.on('pipe', common.mustCall()); 341cb0ef41Sopenharmony_ci dest.on('unpipe', common.mustNotCall('unpipe should not have been emitted')); 351cb0ef41Sopenharmony_ci src.pipe(dest); 361cb0ef41Sopenharmony_ci setImmediate(() => { 371cb0ef41Sopenharmony_ci assert.strictEqual(src._readableState.pipes.length, 1); 381cb0ef41Sopenharmony_ci }); 391cb0ef41Sopenharmony_ci} 401cb0ef41Sopenharmony_ci 411cb0ef41Sopenharmony_ci{ 421cb0ef41Sopenharmony_ci const dest = new NullWriteable(); 431cb0ef41Sopenharmony_ci const src = new NeverEndReadable(); 441cb0ef41Sopenharmony_ci dest.on('pipe', common.mustCall()); 451cb0ef41Sopenharmony_ci dest.on('unpipe', common.mustCall()); 461cb0ef41Sopenharmony_ci src.pipe(dest); 471cb0ef41Sopenharmony_ci src.unpipe(dest); 481cb0ef41Sopenharmony_ci setImmediate(() => { 491cb0ef41Sopenharmony_ci assert.strictEqual(src._readableState.pipes.length, 0); 501cb0ef41Sopenharmony_ci }); 511cb0ef41Sopenharmony_ci} 521cb0ef41Sopenharmony_ci 531cb0ef41Sopenharmony_ci{ 541cb0ef41Sopenharmony_ci const dest = new NullWriteable(); 551cb0ef41Sopenharmony_ci const src = new QuickEndReadable(); 561cb0ef41Sopenharmony_ci dest.on('pipe', common.mustCall()); 571cb0ef41Sopenharmony_ci dest.on('unpipe', common.mustCall()); 581cb0ef41Sopenharmony_ci src.pipe(dest, { end: false }); 591cb0ef41Sopenharmony_ci setImmediate(() => { 601cb0ef41Sopenharmony_ci assert.strictEqual(src._readableState.pipes.length, 0); 611cb0ef41Sopenharmony_ci }); 621cb0ef41Sopenharmony_ci} 631cb0ef41Sopenharmony_ci 641cb0ef41Sopenharmony_ci{ 651cb0ef41Sopenharmony_ci const dest = new NullWriteable(); 661cb0ef41Sopenharmony_ci const src = new NeverEndReadable(); 671cb0ef41Sopenharmony_ci dest.on('pipe', common.mustCall()); 681cb0ef41Sopenharmony_ci dest.on('unpipe', common.mustNotCall('unpipe should not have been emitted')); 691cb0ef41Sopenharmony_ci src.pipe(dest, { end: false }); 701cb0ef41Sopenharmony_ci setImmediate(() => { 711cb0ef41Sopenharmony_ci assert.strictEqual(src._readableState.pipes.length, 1); 721cb0ef41Sopenharmony_ci }); 731cb0ef41Sopenharmony_ci} 741cb0ef41Sopenharmony_ci 751cb0ef41Sopenharmony_ci{ 761cb0ef41Sopenharmony_ci const dest = new NullWriteable(); 771cb0ef41Sopenharmony_ci const src = new NeverEndReadable(); 781cb0ef41Sopenharmony_ci dest.on('pipe', common.mustCall()); 791cb0ef41Sopenharmony_ci dest.on('unpipe', common.mustCall()); 801cb0ef41Sopenharmony_ci src.pipe(dest, { end: false }); 811cb0ef41Sopenharmony_ci src.unpipe(dest); 821cb0ef41Sopenharmony_ci setImmediate(() => { 831cb0ef41Sopenharmony_ci assert.strictEqual(src._readableState.pipes.length, 0); 841cb0ef41Sopenharmony_ci }); 851cb0ef41Sopenharmony_ci} 86