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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 assert = require('assert');const Readable = require('stream').Readable;
const readable = new Readable({  read: () => {}});
// Initialized to false.assert.strictEqual(readable._readableState.needReadable, false);
readable.on('readable', common.mustCall(() => {  // When the readable event fires, needReadable is reset.  assert.strictEqual(readable._readableState.needReadable, false);  readable.read();}));
// If a readable listener is attached, then a readable event is needed.assert.strictEqual(readable._readableState.needReadable, true);
readable.push('foo');readable.push(null);
readable.on('end', common.mustCall(() => {  // No need to emit readable anymore when the stream ends.  assert.strictEqual(readable._readableState.needReadable, false);}));
const asyncReadable = new Readable({  read: () => {}});
asyncReadable.on('readable', common.mustCall(() => {  if (asyncReadable.read() !== null) {    // After each read(), the buffer is empty.    // If the stream doesn't end now,    // then we need to notify the reader on future changes.    assert.strictEqual(asyncReadable._readableState.needReadable, true);  }}, 2));
process.nextTick(common.mustCall(() => {  asyncReadable.push('foooo');}));process.nextTick(common.mustCall(() => {  asyncReadable.push('bar');}));setImmediate(common.mustCall(() => {  asyncReadable.push(null);  assert.strictEqual(asyncReadable._readableState.needReadable, false);}));
const flowing = new Readable({  read: () => {}});
// Notice this must be above the on('data') call.flowing.push('foooo');flowing.push('bar');flowing.push('quo');process.nextTick(common.mustCall(() => {  flowing.push(null);}));
// When the buffer already has enough data, and the stream is// in flowing mode, there is no need for the readable event.flowing.on('data', common.mustCall(function(data) {  assert.strictEqual(flowing._readableState.needReadable, false);}, 3));
const slowProducer = new Readable({  read: () => {}});
slowProducer.on('readable', common.mustCall(() => {  const chunk = slowProducer.read(8);  const state = slowProducer._readableState;  if (chunk === null) {    // The buffer doesn't have enough data, and the stream is not need,    // we need to notify the reader when data arrives.    assert.strictEqual(state.needReadable, true);  } else {    assert.strictEqual(state.needReadable, false);  }}, 4));
process.nextTick(common.mustCall(() => {  slowProducer.push('foo');  process.nextTick(common.mustCall(() => {    slowProducer.push('foo');    process.nextTick(common.mustCall(() => {      slowProducer.push('foo');      process.nextTick(common.mustCall(() => {        slowProducer.push(null);      }));    }));  }));}));