角组分茉莉花粉

Question

我很难创造茉莉花间谍。角1.5分量与电流的结合：&。我希望检测何时调用通知函数中的分页函数。

测试

beforeEach(inject(function ($rootScope, _$componentController_) {
    model = {
        min: 1,
        max: 10,
        current: 1,
        notify: function () {
           return function paging(page){console.log(page);} 
        }
    };
    $componentController = _$componentController_;
}));

it('will not page forward on page 10', function () {
    model.current = 10;

    pager.pageForward();

    expect(model.current).toBe(10);
});

组件片段

model.pageFoward() {
   model.notify()(model.current);
}

Answer 1

在这种情况下，您不需要监视，您应该创建一个间谍并返回到model.notify中。尝试：

var notifyReturnFunction;    

...
notifyReturnFunction = jasmine.createSpy('notifyReturnFunction');
model = {
    min: 1,
    max: 10,
    current: 1,
    notify: function() {
        return notifyReturnFunction;
    }
};
...

现在您可以断言它已被调用：

it('will not page forward on page 10', function () {
    model.current = 10;

    pager.pageForward();

    expect(model.current).toBe(10);
    expect(notifyReturnFunction).toHaveBeenCalled();
    // Or
    expect(notifyReturnFunction).toHaveBeenCalled(model.current);
});