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denoland-deno/tests/node_compat/test/parallel/test-event-emitter-symbols.js
Yoshiya Hinosawa d04d5677d9
chore: update node_compat setup script (#27051)
This PR updates the node_compat setup script. Now the copied version in
each test file is corrected. Also `TODO.md` links to the correct files
in Node.js repo.
2024-11-25 22:35:53 +09:00

30 lines
816 B
JavaScript

// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 20.11.1
// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
'use strict';
const common = require('../common');
const EventEmitter = require('events');
const assert = require('assert');
const ee = new EventEmitter();
const foo = Symbol('foo');
const listener = common.mustCall();
ee.on(foo, listener);
assert.deepStrictEqual(ee.listeners(foo), [listener]);
ee.emit(foo);
ee.removeAllListeners();
assert.deepStrictEqual(ee.listeners(foo), []);
ee.on(foo, listener);
assert.deepStrictEqual(ee.listeners(foo), [listener]);
ee.removeListener(foo, listener);
assert.deepStrictEqual(ee.listeners(foo), []);