我有以下测试：
it('Should keep location when user rejects confirmation',inject(function ($controller,$rootScope) {
var confirmStub = sinon.stub(),eventStub = {
preventDefault: sinon.spy()
};
miscServiceStub = function () {
this.confirm = confirmStub;
};
confirmStub.returns(false);
initializeController($controller,'Builder',$rootScope);
$rs.$broadcast('$locationChangeStart',eventStub);
expect(confirmStub).toHaveBeenCalledOnce();
expect(confirmStub).toHaveBeenCalledWith('Are you sure you want to leave? you will loose any unsaved changes.');
expect(eventStub.stopPropagation).toHaveBeenCalledOnce();
miscServiceStub = function () {};
}));@H_502_3@
$rootScope.$on('$locationChangeStart',function (event) {
dump(arguments);
if (!$miscUtils.confirm('Are you sure you want to leave? you will loose any unsaved changes.')){
event.preventDefault();
}
});@H_502_3@
事件$stopPropagation不调用mock事件,dump(arguments)表示它正在传入真实事件对象后面的事件：@H_301_5@
Chromium 31.0.1650 (Ubuntu) DUMP: Object{
0: Object{name: '$locationChangeStart',targetScope: Scope{$id: ...,$$childTail: ...,$$childHead: ...,$$prevSibling: ...,$$nextSibling: ...,$$watchers: ...,$parent: ...,$$phase: ...,$root: ...,this: ...,$$destroyed: ...,$$asyncQueue: ...,$$postDigestQueue: ...,$$listeners: ...,$$isolateBindings: ...,activeTab: ...,routeParams: ...},preventDefault: function () { ... },defaultPrevented: false,currentScope: Scope{$id: ...,routeParams: ...}},1: Object{stopPropagation: spy}
}@H_502_3@
如何使它成为事件对象是模拟事件而不是真实的事件对象本身？我接近正确的路吗？我对Angular很新,对代码/测试的任何评论都将不胜感激.@H_301_5@
解决方法
在这行：
$rs.$broadcast('$locationChangeStart',eventStub);@H_502_3@
您提供的一个参数将与事件一起传输,而不是事件本身.这就是为什么你会到这里：@H_301_5@
$rootScope.$on('$locationChangeStart',function (event)@H_502_3@
2个对象作为参数.您的活动的完整签名应为：@H_301_5@
$rootScope.$on('$locationChangeStart',function (event,eventStub)@H_502_3@
所以：你不能以你尝试的方式测试stopPropagation的调用.@H_301_5@
如果你看到角度src(行12185 …),你会看到,事件被创建,没有任何可能模拟这个对象.而$范围本身并不被角度模拟所嘲笑.@H_301_5@
如果要测试preventDefault被调用,我将编写一个具有调用preventDefault功能的服务.这个服务可以很容易地被窥探.@H_301_5@
