诗农嘲笑一个类及其打字稿中的方法

如何解决诗农嘲笑一个类及其打字稿中的方法

我正在尝试模拟整个类 'PropertyPopulater' 及其方法之一，以便可以将其用于传递给测试中的服务 ctor 'AppointmentPopulater'，而不必构建每个构造函数参数。

在尝试运行测试时，我收到此错误，就好像没有选择存根方法“getPopulatedPropertyByIdAsync”一样：

错误：希望在对象上存根方法，但没有找到

测试：

    describe("populateAsync",() => {
    it("maps the correct properties when source contains valid properties",async () => {
        let httpHelper = new HttpHelper();
        let generalFormatter = new GeneralFormatter();
        let addressFormatter = new AddressFormatter(generalFormatter);
        let addresspopulater = new Addresspopulater(addressFormatter);
        let officePopulater = new OfficePopulater(httpHelper,addresspopulater);
        let negotiatorPopulater = new NegotiatorPopulater(httpHelper);

        let propertyPopulaterStub = sinon.createStubInstance(PropertyPopulater,{
            getPopulatedPropertyByIdAsync: sinon.stub().returns(populatedPropertyResponse),});
            
        let appointmentPopulater = new AppointmentPopulater(httpHelper,officePopulater,negotiatorPopulater,propertyPopulaterStub);

        let response = await appointmentPopulater.populateAsync(appointmentModel,null,null);