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'use strict';
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require('../common');
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const assert = require('assert');
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const EventEmitter = require('events');
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const emitter = new EventEmitter();
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emitter.on('foo', function() {});
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emitter.on('foo', function() {});
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emitter.on('baz', function() {});
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// Allow any type
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emitter.on(123, function() {});
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assert.strictEqual(EventEmitter.listenerCount(emitter, 'foo'), 2);
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assert.strictEqual(emitter.listenerCount('foo'), 2);
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assert.strictEqual(emitter.listenerCount('bar'), 0);
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assert.strictEqual(emitter.listenerCount('baz'), 1);
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assert.strictEqual(emitter.listenerCount(123), 1);
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