我有一个控制器,想用 Jasmine 测试它。我要测试的控制器范围内有一个 $on 侦听器。如何触发 $emit 事件以运行 $on 侦听器?
myApp.controller('superCtrl', function ($scope) {
$scope.hero = 'Rafael ninja turtle';
$scope.$on('change_hero', function (event, new_hero) {
$scope.hero = new_hero;
});
});
当“change_hero”事件发生时,测试 $on 监听器工作正常:
describe('Super controller', function () {
var $scope,
super_controller;
beforeEach(function(){
module('myApp');
inject(function($rootScope, $controller){
$scope = $rootScope.$new();
super_controller = $controller('superCtrl', {$scope: $scope});
spyOn($scope, '$on');
});
});
it('should change change hero on change_hero event', function (){
var new_hero = 'Ralf ninja turtle',
sub_scope = $scope.$new();
sub_scope.$emit('change_hero', new_hero);
expect($scope.$on).toHaveBeenCalled();
expect($scope.hero).toBe('Ralf ninja turtle');
});
});