Question

我有控制器，只要创建控制器的新实例，就会调用以下方法

initialize: function() {
    var self = this;
    return new View().render().then(function() {
        bus.broadcast("INITIALIZED");
    });
}

我想测试一下这个方法：

it("should initialise controller", (done) => {
        bus.subscribe("INITIALIZED", (message, payload) => done());
        new Controller();
    });

如何使用Sinon.JS保证使用新的View（）。render（）来进行此测试？

Answer 1

根据您提供的信息......：

func add(newLocation location:[String:Any]) {
        let momentaryLat = (location["latitude"] as! NSString).doubleValue
        let momentaryLong = (location["longitude"] as! NSString).doubleValue
        let annotation = MKPointAnnotation()
        annotation.title = location["title"] as? String
        annotation.coordinate = CLLocationCoordinate2D(latitude: momentaryLat as CLLocationDegrees, longitude: momentaryLong as CLLocationDegrees)
        mapView.addAnnotation(annotation)
}

Answer 2

使用Sinon v2.3.1，您可以执行以下操作。

const sinon = require('sinon');
let sandbox;
beforeEach('create sinon sandbox', () => {
  sandbox = sinon.sandbox.create();
});

afterEach('restore the sandbox', () => {
  sandbox.restore();
});

it('should initialize controller', (done) => {
  sandbox.stub(View.prototype, 'render').resolves();

  bus.subscribe("INITIALIZED", (message, payload) => done());
  new Controller();
});

Sinon如何保留承诺？

2 个答案: