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'use strict';
var common = require('./common');
var EventEmitter = require('../');
var assert = require('assert');
var ee = new EventEmitter();
var foo = Symbol('foo');
var listener = common.mustCall();
ee.on(foo, listener);
assert.strictEqual(ee.listeners(foo).length, 1);
assert.strictEqual(ee.listeners(foo)[0], listener);
ee.emit(foo);
ee.removeAllListeners();
assert.strictEqual(ee.listeners(foo).length, 0);
ee.on(foo, listener);
assert.strictEqual(ee.listeners(foo).length, 1);
assert.strictEqual(ee.listeners(foo)[0], listener);
ee.removeListener(foo, listener);
assert.strictEqual(ee.listeners(foo).length, 0);