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// Flags: --no-warnings
// The flag suppresses stderr output but the warning event will still emit
'use strict';
const common = require('../common');
const events = require('events');
const assert = require('assert');
const symbol = Symbol('symbol');
const e = new events.EventEmitter();
e.setMaxListeners(1);
process.on('warning', common.mustCall((warning) => {
assert.ok(warning instanceof Error);
assert.strictEqual(warning.name, 'MaxListenersExceededWarning');
assert.strictEqual(warning.emitter, e);
assert.strictEqual(warning.count, 2);
assert.strictEqual(warning.type, symbol);
assert.ok(warning.message.includes(
'2 Symbol(symbol) listeners added to [EventEmitter].'));
}));
e.on(symbol, () => {});
e.on(symbol, () => {});
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