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