var expect = require('chai').expect; module.exports = function(helpers) { var component = helpers.mount(require('./index'), {}); var fooEvent = null; var fooEventThis = null; function fooListener() { fooEvent = arguments; fooEventThis = this; } component.on('foo', fooListener); component.emit('foo', 'a', 'b'); expect(fooEvent[0]).to.equal('a'); expect(fooEvent[1]).to.equal('b'); expect(fooEventThis).to.equal(component); fooEvent = null; component.removeListener('foo', fooListener); component.emit('foo', 'a', 'b'); expect(fooEvent).to.equal(null); };