26 lines
		
	
	
		
			627 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			627 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
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| 
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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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| 
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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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| 
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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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| 
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| ee.emit(foo);
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| 
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| ee.removeAllListeners();
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| assert.strictEqual(ee.listeners(foo).length, 0);
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| 
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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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| 
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| ee.removeListener(foo, listener);
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| assert.strictEqual(ee.listeners(foo).length, 0);
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