Jasmine测试一个回调传递给anonym函数

Question

Hellow，

我有类似

的东西

export class Api {
    callHttpClient(url, options, settings) {
        this.httpClient.configure(callbackObjectInstance => {
            callbackObjectInstance.method();
        }); // And then some code
    }
}

我怎么能用Jasmine测试框架监视callbackObject.method？

谢谢

Answer 1

这应该是一种方法。

describe('Given the API', function(){
    let api;
    let callback;
    beforeEach(function(){
        api = new Api();
        callback = {
            method: function() { }
        };
        spyOn(callback, 'method');
        spyOn(api.httpClient, 'configure').and.returnValue(callback);
    });

    it('should call method', function(){
        api.callHttpClient(something, something, something);
        expect(callback.method).toHaveBeenCalledTimes(1);
    });
});