denoland-deno/cli/tests/node_compat/test/parallel/test-stream-writable-ended-state.js

// deno-fmt-ignore-file
// deno-lint-ignore-file

// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 18.12.1
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.

'use strict';

const common = require('../common');

const assert = require('assert');
const stream = require('stream');

const writable = new stream.Writable();

writable._write = (chunk, encoding, cb) => {
  assert.strictEqual(writable._writableState.ended, false);
  assert.strictEqual(writable._writableState.writable, undefined);
  assert.strictEqual(writable.writableEnded, false);
  cb();
};

assert.strictEqual(writable._writableState.ended, false);
assert.strictEqual(writable._writableState.writable, undefined);
assert.strictEqual(writable.writable, true);
assert.strictEqual(writable.writableEnded, false);

writable.end('testing ended state', common.mustCall(() => {
  assert.strictEqual(writable._writableState.ended, true);
  assert.strictEqual(writable._writableState.writable, undefined);
  assert.strictEqual(writable.writable, false);
  assert.strictEqual(writable.writableEnded, true);
}));

assert.strictEqual(writable._writableState.ended, true);
assert.strictEqual(writable._writableState.writable, undefined);
assert.strictEqual(writable.writable, false);
assert.strictEqual(writable.writableEnded, true);