调用 Sinon.js 间谍的测试方法

Testing method called on Sinon.js spy

我正在使用 SinonJS 来测试我的控制器是否在我的视图中调用方法。我想测试调用 addSeat 方法时的值为 testSeat。我最大的努力是下面的代码,但我收到了一个错误。我希望能够在不将我的视图模块带入我的测试中的情况下进行测试。这可能吗?

describe('Adding a seat', function() {
  view1Spy = {
        addSeat: sinon.spy(),
        render: sinon.spy()
  };
  beforeEach(function() {
    newSeat = seatingChartController.addSeat(3, 4);
    seatingChartController.registerView(view1Spy);
  });
  it('Calls addSeat on each view with the added seat', function() {
    expect(view1Spy.addSeat).to.be.calledWith(newSeat);
  });
}

编辑:

这是错误:

1) Seating Chart Controller Adding a seat Calls addSeat on each view with the added seat
     Failure/Error: 'undefined' is not a function (evaluating 'expect(view1Spy.addSeat).to.be.calledWith(newSeat)'

在这种情况下,您可能需要这样的东西:

view1Spy = {addSeat: sinon.spy()};
// ...
expect(view1Spy.addSeat.calledWith(newSeat)).to.be.true;